Tutorials Posted by john1122
john1122 from UCLA
john1122's Posted Tutorials
| Bounty | Category | Question | Tutorial | Purchases | Date Posted |
|---|---|---|---|---|---|
| $1.00 | Physics | Physics question 1 | Solutions and Working
...l angular velocity, a the angular acceleration and s the angular displacement. First you need to find the velocity an... | Nov. 12, 2010 at 01:11:45AM | |
| $1.00 | Chemistry | lattice energy | Solution with eplanation
...them apart, so compounds with strong bonds have a higher melting point. In th... | Nov 07, 2010 at 5:10:51PM | |
| $1.00 | Physics | rotation19 | Solution with working
... in the triangle you just used: 1.2mm = 0.0012 metres θ = tan -1 (0.0012 / 55) = 0.0013 degrees. Now convert this to radians: 0.0013 * pi / 180 = 2.... | Nov 06, 2010 at 8:56:38PM | |
| $1.00 | Physics | rotation17 | Solution with working
... Use the following formula: v 2 = u 2 2as For angular velocity questions, v = final angular velocity, u = initial angular velocity, a = angular acceleration and s = angular displaceme... | Nov 06, 2010 at 8:35:09PM | |
| $1.00 | Physics | rotation5 | Answer with working
...ians. 2π/4 = 1.5708 radians 1.5708 radians / 0.3936 seconds = 3.99 rad/s = 4 rad/s For the maximu... | Nov 05, 2010 at 11:12:35PM | |
| $1.00 | Engineering | bandwidth | Answer and working
... to be used: Q = f / (f 2 - f 1) Here, f 2 = 3.9 and f 1 = 3.2 ... | Nov 05, 2010 at 9:46:19PM | |
| $1.00 | Engineering | Center Frequency | Answer with working and explanation
...la for this question is: Q = f / (f 2 - f 1) where f is the resonant or centre frequency, and (f 2 - f 1) is the bandw... | Nov 05, 2010 at 9:40:53PM | |
| $1.00 | Mathematics | algebra | Answer and working with graph
...uadratic formula: x = -b ± √(b 2 -4ac)/(2a) x = -2.1 ± √(2.1 2 - 4*-... | Nov 05, 2010 at 6:11:15PM | |
| $1.00 | Physics | force and motion67 | Answers with working.
...0 degree upwards force of magnitude F is: F v = F*sin(60) The horizontal component will be: F h = F*cos(60) Now rearrange one of the above equations to solve for F, and substitute it into the...... | Nov. 05, 2010 at 08:45:53AM | |
| $0.50 | Mathematics | Geometry | Solution and explanation
...-x, y) In this case... | Feb 04, 2010 at 8:29:17PM | |
| $0.50 | Mathematics | Geometry | Solution and explanation
...izontal line has ... | Feb 04, 2010 at 8:23:10PM | |
| $1.00 | Physics | If a 30 kg shell is fired from a 2000kg | Solution and working
...o momentum, so the total momentum after the shell is ... | Feb 04, 2010 at 6:55:09PM | |
| $1.00 | Mathematics | a train is initially 150 miles from the | Solutions and working
...the speed at which the train is moving toward the st... | Feb 04, 2010 at 6:21:15PM | |
| $1.00 | Mathematics | Problem without all Information,,,,,, | Solution with explanation
...e, at least 2 people must be born in the sa... | Feb 04, 2010 at 6:18:00PM | |
| $1.00 | Mathematics | MAT116 | Real life example for you
...ution to a set of linear equations is in choosing a cell phone company. Compnay A might offer $... | Feb 04, 2010 at 6:07:29PM | |
| $3.00 | Mathematics | Permutations | Correct Answers only
...5040 2. P(7,5) = 2520 3. P(7,3) = ... | Feb 04, 2010 at 5:56:47PM | |
| $0.50 | Mathematics | Mean and Mode:pre algebra | Solutions and working
...re: (1 4 17 17 3 13 3 12 8 ... | Feb 04, 2010 at 5:51:24PM | |
| $1.00 | Mathematics | algebra 1/2 | Solutions and working
... = (-7 + 5) / 4 and x = (-7 - 5) / 4 x = -1/2 and x = -3 2. Discriminant = b 2... | Feb 04, 2010 at 5:22:52PM | |
| $0.25 | Mathematics | One night the King of Des Moines could n | Solution and working
... backwards from the end. As the 3rd prince took 1/2 and there were 3 left, before he took some there ... | Feb. 04, 2010 at 09:32:52AM | |
| $0.25 | Mathematics | geometry | Solution and working
...In this case it is: ... | Feb 03, 2010 at 11:51:42PM | |
| $1.00 | Mathematics | Given the graph (I attached it) Name an edge that is a bridge if any | Solution and explanation
...ge in a graph is any edge that if you removed it would increase t... | Feb 03, 2010 at 11:06:05PM | |
| $0.25 | Mathematics | algebra word problem | Solutions and working
... Now just sub these into the formula to fin... | Feb 03, 2010 at 7:58:21PM | |
| $3.00 | Mathematics | Algebra | Solutions and working
...0 - 7| - √(0 4) q(0) = |-7| - 2 q(0) = 7 - 2 q(0) = 5 q(4) = |2*4 - 7| - √(4 4) q(4) = |1| - √8 q(4) = 1 - 2√2 q(-4) = |2*-4 - 7| - √(-4 4) q(-4) = |-15| - ... | Feb 03, 2010 at 6:57:07PM | |
| $1.00 | Economics | I need help calculating this | Solution and working
...ust solve for P to find the equilibrium price: 8 + 3P ... | Feb 02, 2010 at 11:33:38PM | |
| $0.25 | Mathematics | algebra | Solution and working
... 24 = 9 Now collect ... | Feb 02, 2010 at 11:16:33PM | |
| $0.25 | Mathematics | College Algebra 1; Cartesian Coordinate System, Linear Equations in two variables, graphing lines and slope | Solution and working
...rst find the slope, using the following formula: slope = (... | Feb 02, 2010 at 11:08:59PM | |
| $0.25 | Mathematics | College Algebra 1; Cartesian Coordinate System, Linear Equations in two variables, graphing lines and slope | Solution and working
...7y - 4y -3 ... | Feb 02, 2010 at 10:58:16PM | |
| $0.25 | Mathematics | College Algebra 1; Cartesian Coordinate System, Linear Equations in two variables, graphing lines and slope | Solution and working
... when x = 0: y = 8/9*0 + 4/... | Feb 02, 2010 at 10:51:44PM | |
| $0.25 | Mathematics | College Algebra 1; Cartesian Coordinate System, Linear Equations in two variables, graphing lines and slope | Solution and working
...6*4 + 2 y = 24... | Feb 02, 2010 at 10:37:46PM | |
| $10.00 | Mathematics | An event planning problem/ I need to know how to set up the problem to get all of the above answers!!! | Solution and working
...you first need to add up all the costs: Food = 12.50*35 = $437.50 room rental $350 print... | Feb 02, 2010 at 10:24:11PM | |
| $0.75 | Mathematics | Help with Math | Solution and explanation
...o numbers when multiplied by themselves will always be positive. Two ... | Feb 02, 2010 at 9:46:26PM | |
| $0.50 | Chemistry | Please help me understand | Solution and explanation
...ns, it has a mass number of: 17 + 15 = 32 You can... | Feb 02, 2010 at 9:34:18PM | |
| $0.50 | Mathematics | Math 116 - Help | Solution and working
...the equation: f(x) = 3x - 2x 8 f(5) = 3*5 - 2*5 8 f(5) = 15 - 10 8 f(5) = 13... | Feb 02, 2010 at 7:54:31PM | |
| $0.25 | Mathematics | help me please | Solution and working
...ter of the tyres: Perimeter = pi*D Perimeter = pi*25 Perimeter = 78.5... | Feb 02, 2010 at 7:38:33PM | |
| $1.00 | Mathematics | maths question | Solution and working
...eing poured in. As you know the final volume, you can minus the amount of the first acid from the final volume to find the am... | Feb. 02, 2010 at 07:18:36AM | |
| $1.00 | Mathematics | Please help | Explanation for you
...ments are in a set, not their order. Permutations should be used if you are finding the nu... | Feb. 02, 2010 at 12:04:27AM | |
| $12.00 | Mathematics | Unit 5 Project Assignment | Fully worked solutions
...have any problem... | Feb 01, 2010 at 11:59:26PM | |
| $5.00 | Mathematics | Unit 5 Library Assignment | Fully worked solutions with explanation
...are the solution... | Feb 01, 2010 at 11:58:27PM | |
| $1.00 | Geography | what is the only forgign-controlled regi | Correct answer
...a, which is an overseas region of France. A... | Feb 01, 2010 at 7:55:42PM | |
| $0.25 | Chemistry | what is the answer please? | Solution and explanation
...ainer, but temeprature and the type of liquid. If t... | Feb 01, 2010 at 6:51:04PM | |
| $0.25 | Chemistry | Please help me understand the steps of getting to this answer. | Solution and explanation
...e, and is a physically bigger atom, so more electron... | Feb 01, 2010 at 6:41:38PM | |
| $0.25 | Chemistry | Please help me understand the steps of getting to this answer. | Solution and explanation
...onic compounds are soluble, and conduct electricity in a molten state, so that rules out B. Network... | Feb 01, 2010 at 6:36:57PM | |
| $0.25 | Chemistry | Please help me understand the steps of getting to this answer. | Solution and explanation
...of liquid. If you increase the volume of the containe... | Feb 01, 2010 at 6:31:27PM | |
| $0.25 | Chemistry | Please help me understand the steps of getting to this answer. | Solution and explanation
...ods are between H and the other atoms in the molecule. In H 2O, the... | Feb 01, 2010 at 6:26:50PM | |
| $3.50 | Mathematics | Please help me understand this exponential problem. | Solution and working, with explanation
... p = 120 Step 2: I ahve chosen a = 0.4 1. C = 120*0.4 t 2. t = 0: C = 120*0.4 C = 120*1 C = 120 cars t = 2 months: C ... | Feb. 01, 2010 at 07:57:42AM | |
| $20.00 | Biology | theory of evolution, natural selection | Here is your assignment
...ing specific. Either way, I have included a seperate document with references, and if you need t... | Feb. 01, 2010 at 05:52:00AM | |
| $0.25 | Mathematics | Linear Functions & Equations | Confirm me, will post solutions within 12 hours
...ked solutio... | Feb. 01, 2010 at 12:20:24AM | |
| $0.25 | Physics | average acceleration | Solution and explanation
...e. First find the change in velocity: 43 - (-1) = 44 m/s change in velocity. (As the b... | Jan 31, 2010 at 11:26:12PM | |
| $0.25 | Physics | intial speed and time | Solution and step by step working
...: s = ut + 0.5at 2 s = 0 u = 19.9 a = -9.81 ( This is negative as the acceleration ... | Jan 31, 2010 at 10:58:25PM | |
| $0.25 | Physics | average speed | Solution and working
...nce / time formula: 3.5*10 -9 m/s = 0... | Jan 31, 2010 at 10:53:33PM | |
| $0.25 | Physics | speed with acceration over time | Solution and steps
... 2 s = distance = 43 a = acceleration = 9.25 u = initial speed = 1.15 t = ? Sub these into the ... | Jan 31, 2010 at 9:18:22PM | |
| $0.25 | Physics | acceleration through time | Solution and working
...eed to use one of the equations of motion: v 2 = u 2 2as v = final spee... | Jan 31, 2010 at 9:03:05PM | |
| $2.00 | Chemistry | Using density as a conversion factor between mass & volume ($5 tip if answer within an hour) | Solutions and working
...y: 0.5 / 3.51 = 0.142 cubic centimetres. A 0.5g piece of graphite will occupy: 0.... | Jan. 29, 2010 at 02:19:29AM | |
| $1.00 | Mathematics | Algebra | Correct answers with explanations
...actersitic: x1 Decreasing functions show: x1 f(x2) 1. x1 = -4 x2 = -3 f(x1) = 0 f(... | Jan. 29, 2010 at 12:44:19AM | |
| $1.25 | Mathematics | algebra word problem | Correct answer with working
... - 0) / 1 = 8 feet per second 2 is the average rate of chang... | Jan. 29, 2010 at 12:29:05AM | |
| $1.00 | Mathematics | algebra | Correct answers
...nd that point: 1. x 4 = 0 x = -4 zero is at (-4,0) 2. x 2 = 0 x = -2 zero is at... | Jan. 29, 2010 at 12:22:17AM | |
| $0.75 | Mathematics | algebra | Solution and working
...kes the bracket under the square root zero. That will be the start or end of the domain. If x is negative it ... | Jan. 29, 2010 at 12:15:07AM | |
| $0.25 | Chemistry | help with chemistry Hmwrk | Confirm me, will post solutions within 24 hours
... will post th... | Jan 27, 2010 at 10:14:57PM | |
| $2.00 | Chemistry | Gen Chem | Answers and image of structures.
...ms feel free to messa... | Jan 27, 2010 at 7:02:00PM | |
| $4.75 | Biology | Bioinquiry | Here is your assignment
...is the assignm... | Jan. 27, 2010 at 07:39:54AM | |
| $0.75 | Mathematics | The sum of the lengths of any 2 sides of | Solution and working
...: x 21 + x > 2x - 3 x x The 3rd side must... | Jan. 27, 2010 at 03:57:43AM | |
| $0.75 | Mathematics | math homework help | Solution and working
...40 3x + 4y = 480 I will use the elimination method to solve: ... | Jan. 27, 2010 at 12:47:17AM | |
| $0.25 | Biology | Bioinquiry | Confirm me, will post solutions within 24 hours
...olutions w... | Jan 26, 2010 at 11:34:37PM | |
| $0.25 | Physics | help me plz | Solution and working
...und by dividing dista... | Jan 26, 2010 at 8:25:04PM | |
| $1.00 | Chemistry | Chemistry | Solution and steps
...so H 2 is in excess. The amount of H 2 left is: 5.2 - 2*0.2844 = 4.63 moles of H 2 left. Amount of ... | Jan 26, 2010 at 6:09:57PM | |
| $0.25 | Chemistry | Chemistry | Correct Answers
...4 is met... | Jan. 26, 2010 at 03:12:27AM | |
| $0.50 | Physics | components of the resultant displacement | Solution and working
...vel component up into north and west components, using trigonometry. Draw a right angled triangle for each... | Jan 25, 2010 at 11:29:31PM | |
| $0.25 | Chemistry | chemistry need detail | Solution and working
...* 10 -2 grams: 2.36 * 10 -2 / 78 = 3.03 * 10 -4 Now mul... | Jan 25, 2010 at 11:15:11PM | |
| $1.00 | Health-Care | What dosage in grams per kilogram of body weight does a 130 pound woman receive if she takes two 250 mg tablets of penic | Solution and steps
...mg tablets = 500 mg Divide 500 by the eprsons weight to find the mg per kg: 50... | Jan 25, 2010 at 10:44:32PM | |
| $0.25 | Chemistry | rounding numbers to a specific # of significant figures | Solution and explanation
...r that is not a zero. The first three in 29... | Jan 25, 2010 at 9:18:24PM | |
| $1.00 | Chemistry | What is the mass in grams of 6.022 x 10^23 Cl atoms of mass 35.45 amu? | Solution and working
...ind the number of moles of Cl atom... | Jan 25, 2010 at 9:16:27PM | |
| $0.50 | Chemistry | Organic Chemistry Problem | Solution and working with explanation
... mL by 0.00129 g to find how much ... | Jan 25, 2010 at 8:14:10PM | |
| $1.00 | Mathematics | christ riders her bike 7 blocks south, 3 | Solution and explanation
...cks west. Before this point, she wi... | Jan 25, 2010 at 7:48:11PM | |
| $0.25 | Mathematics | Answer only please | Answer Only
...s th... | Jan 21, 2010 at 6:53:34PM | |
| $0.25 | Mathematics | Answer only please | Answer only
... the... | Jan 21, 2010 at 6:11:30PM | |
| $0.25 | Mathematics | Answer only please | Answer only
...wer (x... | Jan 21, 2010 at 6:00:36PM | |
| $0.25 | Mathematics | Answer only please | Answer only
... 5y) Any p... | Jan 21, 2010 at 5:58:41PM | |
| $1.00 | Mathematics | UV has a midpoint M. THe coordinates of | Solution and working
... just add the difference between x and y components of UM to the c... | Jan. 21, 2010 at 05:45:25AM | |
| $0.25 | Mathematics | Math Help Needed | Solution and working
...he two equations and solve for t: 55t = 65t - 65 -10t = -65 t... | Jan. 21, 2010 at 12:43:05AM | |
| $0.75 | Mathematics | help please | Solution and working
...- 5) = 0 x 2 = 5 x = ±√5 and 15x 2 + 9 = 0 Using the ... | Jan 20, 2010 at 8:25:43PM | |
| $0.75 | Mathematics | A regular heptagon has an apothem of app | Solution and working
... triangles, with the base one side of the heptagon and its tip at the ce... | Jan 19, 2010 at 6:50:23PM | |
| $1.00 | Mathematics | help with a math question | Solution and Working
...nd the total rise or fall at the end of the day: 0.8... | Jan 19, 2010 at 6:40:36PM | |
| $1.00 | Physics | General Physics | Solution and working
...ow just multiply Ann's speed in m/s by the time it takes he... | Jan 18, 2010 at 6:10:51PM | |
| $1.00 | Mathematics | Another word problem with quadratic equations.... | Solution and working
... that there is a zero on one side: 16t 2 - 30t + 13 = 0 Use the quadratic f... | Dec. 30, 2009 at 01:17:01AM | |
| $1.50 | Physics | physics acceleration and velocity q's | Solution and working
...eleration is the change in velocity over the change in... | Dec 21, 2009 at 8:57:18PM | |
| $1.50 | Physics | Physics velocity and acceleration Q's | Solution and explanation
...and B. The answer can't be C as the train must have a negative velocity at some point to go back to its orig... | Dec 21, 2009 at 8:12:57PM | |
| $0.25 | Mathematics | playground | Correct answer with working
...ter = 2W + 2L 240 = 2W + ... | Dec. 21, 2009 at 12:01:30AM | |
| $0.25 | Mathematics | slope | Solution and steps
...ng in your points: (1... | Dec 20, 2009 at 11:59:34PM | |
| $0.25 | Mathematics | slope | Solution and explanation
...mx + c form, where m is the slo... | Dec 20, 2009 at 11:57:51PM | |
| $0.25 | Mathematics | ordered pair | Solution and explanation
... a, and use the formula to find b... | Dec 20, 2009 at 11:18:25PM | |
| $0.25 | Mathematics | Painting31 | Solution and working
...ormula for perimeter is: ... | Dec 20, 2009 at 11:16:44PM | |
| $0.50 | Mathematics | Algebra Problems | Solution and working
...> 10 For tis question divide both sides by 2 so that t is ... | Dec 18, 2009 at 8:19:11PM | |
| $0.50 | Mathematics | algebra week 6 #5 | Solution and working
... / (x - 4)) = ln(4) You can cancel out the log... | Dec 17, 2009 at 9:29:57PM | |
| $0.25 | Mathematics | word problem | Solution and explanation
...hat you multiply the number by every number below it down to 1, ie: 5... | Dec 16, 2009 at 9:09:33PM | |
| $0.25 | Mathematics | probability | Solution and explanations
...any other card. 2. Given a card is black means that there are no hearts, as they ar... | Dec 16, 2009 at 8:54:48PM | |
| $0.25 | Mathematics | word problem | Solution and working
...stion. To find the answer, just ... | Dec 16, 2009 at 8:49:47PM | |
| $0.25 | Mathematics | Probability | Solution and working
...e is just the number who prefer chees... | Dec 16, 2009 at 8:41:49PM | |
| $0.25 | Mathematics | Probability | Solution and working
... number of marbles of that type divided by the total number of marbles. So the probability of a turquoi... | Dec 16, 2009 at 8:39:52PM | |
| $0.50 | Mathematics | algebra operations | Solution and steps
...tion, first minus 4 from each side of the equation: ... | Dec 16, 2009 at 7:50:22PM | |
| $0.50 | Mathematics | Please show me how you come up with the solutions. Thank you. | Solution and working
...is into turning point form to find the vertex. To convert it to turning point form com... | Dec 15, 2009 at 9:02:12PM | |
| $1.00 | Music | algebra beginners | Solution and working
...e all the c terms onto the left hand side: 13 - 2c - 2 - 2c - 3c =... | Dec 15, 2009 at 8:18:25PM | |
| $2.00 | Chemistry | obry(big bucks) | Solution and steps
...tion of NaOH: Na + and OH - ... | Dec 15, 2009 at 7:40:32PM | |
| $1.00 | Mathematics | please help me subtract these fractions | Solution and steps
...ll have the same denominator, so change them all so ... | Dec 15, 2009 at 6:12:32PM | |
| $5.00 | Chemistry | obry(big bucks) | Solutions and explanations
... is: Zn + 2HCl -> ZnCl 2 + H 2 In this reaction, Hydrogen is replaced by Zinc. From this reaction, you can see that H 2 gas is produced, which is highl... | Dec 15, 2009 at 6:09:06PM | |
| $10.00 | Chemistry | chemistry ( big bucks) | Solution and steps
...mass of Cu 2CO 3(OH) 2*H 2O is: 221.116 + 18.015 = 239.131 In 5 g, there are: 5 / 239.131 = 0.0209 moles This means that it can't be anhydrous copper carbonate hydroxide, as the number of...... | Dec 15, 2009 at 5:30:55PM | |
| $1.00 | Mathematics | Married Filing Jointly | Solution and working
... = 130341 0.28 * 130341 - 10596 36495.48 - 10596 $2... | Dec. 15, 2009 at 09:07:18AM | |
| $1.00 | Mathematics | Yogurt | Solution and working
...tion in terms of the 3% fat yoghur... | Dec. 15, 2009 at 09:03:43AM | |
| $3.00 | Mathematics | marble ration | Solution and working
...e: 40/100 * 60/100 = 0.24 The probability of the second marble being big and blue is... | Dec 14, 2009 at 8:33:38PM | |
| $1.00 | Mathematics | Systems of Equations | Solution and working
...5x + 22y = -198 minus these two equations: 22y = 198 y = 9 ... | Dec. 14, 2009 at 09:16:24AM | |
| $1.00 | Mathematics | values | Solution and working
... sot hat both the x terms have the same coefficient: -5x + 4y = -8 becomes: -40x + 32y = -... | Dec. 14, 2009 at 09:07:52AM | |
| $0.25 | Mathematics | probability | Solution and working
...rcuit: 9/120 Now find the chance that she will pick a second bad circuit. Because ... | Dec 13, 2009 at 6:37:38PM | |
| $0.25 | Mathematics | math problem | Solution and explanation
...ivide the number of country and talk stat... | Dec 13, 2009 at 6:32:36PM | |
| $0.25 | Mathematics | math word problem | Solution and explanation
...robability of picking a bird, ferret or lizard's folder, s... | Dec 13, 2009 at 6:30:33PM | |
| $2.00 | Mathematics | Math/ Geometry Question | Solution and working
...ght to find the distance for the second measurement: ... | Dec. 13, 2009 at 12:16:12AM | |
| $0.50 | Mathematics | solve for x | Solution and working
...e by 10 to find x: ... | Dec 12, 2009 at 9:51:40PM | |
| $1.00 | Biology | DNA and Genotype | Solution and explanation
...pring will have the genotype "Bb", making them brown. If the brown mouse i... | Dec 12, 2009 at 6:22:46PM | |
| $3.00 | Mathematics | 3 place values | Solution and explanation
... there are 2 numbers after the first non-zero number 0.00500 is also a number with 3 si... | Dec 12, 2009 at 6:15:09PM | |
| $1.00 | Mathematics | algebra problems | Solution and working
...'s onto one side: 1.8m - m = m - m - 5.6 0.8m = -5.6 Now divide both sides of the equa... | Dec 12, 2009 at 6:09:34PM | |
| $1.00 | Chemistry | chemistry homework help | Solution and working
...f Fe, you can simply divide it by the molar mass of FeCl ... | Dec 11, 2009 at 7:43:07PM | |
| $1.00 | Chemistry | Chemistry homework help | Solution and working
....V = n.R.T First convert 784 mm Hg to kPa 760 mm Hg = ... | Dec 11, 2009 at 7:37:58PM | |
| $1.00 | Chemistry | chemistry homework help | Solution and working
...V / (R.T) Equated in terms of n: P.V / (R.T) = P.V / (R.T) ... | Dec 11, 2009 at 7:33:37PM | |
| $0.50 | Mathematics | W5A3 #7 | Solution and working
... that is to the power of another nu... | Dec. 11, 2009 at 12:19:00AM | |
| $0.50 | Mathematics | W5A3 #6 | Solution and working
... (3) 3*log 10 (2) + log 10 (... | Dec. 11, 2009 at 12:16:48AM | |
| $0.50 | Mathematics | W5A3 #4 | Solution and steps
...o the nearest gra... | Dec. 11, 2009 at 12:11:03AM | |
| $0.50 | Mathematics | one more | Solution and working
...f(x) = 0: 0 = 4x 2 - 8 4x 2 = 8 ... | Dec. 11, 2009 at 12:02:48AM | |
| $0.50 | Mathematics | W5A1 prob 30 | Solution and working
...you can divide inside the log:... | Dec 10, 2009 at 11:57:10PM | |
| $1.00 | Physics | Problem 5.22 | Solutions and working for elevator question
...you have a... | Dec 10, 2009 at 11:55:09PM | |
| $1.00 | Physics | Problem 5.15 | Solution and working
...f you hav... | Dec 10, 2009 at 11:26:27PM | |
| $1.00 | Physics | Problem 5.11 | Solution and working for forces question
...l free to... | Dec 10, 2009 at 10:30:04PM | |
| $0.50 | Mathematics | Calculus Help | Solution and working
...s, just raise the power of the bracket by one and divide by the new power: 6 ∫(t + 1) 1/2 = [(... | Dec 10, 2009 at 8:10:05PM | |
| $0.50 | Mathematics | Caculus Help | Solution and working
...= 1 hr + 15 min = 1.25 hours ... | Dec 10, 2009 at 8:01:20PM | |
| $0.50 | Mathematics | Calculus Help | Solution and working
...r each equation: du/dt = 3t 2 3 dg/du = 1/(2√u) Multiply them together to find... | Dec 10, 2009 at 7:59:52PM | |
| $0.50 | Mathematics | Calculus Help | Solution and explanation
...ans that to make f(x) a continuous function, A must be the same value as x 2 + 8 (I... | Dec 10, 2009 at 7:53:12PM | |
| $10.00 | Physics | Quid.Pro.Quo. Help me please and I will compensate for your time. | Solutions and explanations
...gy being transported by the wave. If a waves amplitude is 0.5 meters, and is then increased to 1 m, it has been doubled. Energy is proportional to amplitude squared in a wave, so a doubling of...... | Dec 10, 2009 at 6:23:41PM | |
| $0.75 | Mathematics | Calculus Help | Solution and working
... = 4 q 4/q The minimum calue of c(q) will occur when dc/dq = 0, so find dc/dq.... | Dec 10, 2009 at 6:00:39PM | |
| $0.50 | Mathematics | Calculus Help | Solution and working
...that it gives r: r = C/(2*pi) A = pi*r 2 A = pi*(C/(2*pi)) 2 A = C 2/(4*pi) differentiate this to find dA/dC... | Dec 10, 2009 at 5:53:17PM | |
| $1.00 | Physics | Problem 11.26 | Solution to heat engine efficiency question
...e attachment, fee... | Dec. 10, 2009 at 06:36:29AM | |
| $1.00 | Physics | Problem 11.4 | Solution for light bulb efficiency question
... feel free to mes... | Dec. 10, 2009 at 06:31:37AM | |
| $1.00 | Physics | Problem 11.3 | Solution for efficiency question
...n and working in ... | Dec. 10, 2009 at 06:28:56AM | |
| $1.00 | Physics | Problem 10.45 | Solution for elevator question
...attachment, feel ... | Dec. 10, 2009 at 06:24:45AM | |
| $1.00 | Physics | Problem 10.40 | Solution and working for energy consumption
... and working in t... | Dec. 10, 2009 at 06:17:09AM | |
| $0.25 | Mathematics | Math problem | Explnation and path taken:
... must start in room C, as it only has one... | Dec 09, 2009 at 9:30:29PM | |
| $0.50 | Mathematics | Word problem | Solution and working
...nches 3 smaller tin: 8*8*1.5 = 96 inches 3 121... | Dec 09, 2009 at 9:26:59PM | |
| $0.25 | Mathematics | Value of volume | Volume of a cone
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...*t log e(40/64) = -0.0002*t t = 2350.02 years 2. Compound interest quarterly forumla: A = P(1 + r/4)... | Dec 08, 2009 at 10:52:54PM | |
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...ssuming that is where the x is, as you have left it out of the equation) f = e -0.03*40 f = 0.3012 3/10 ... | Dec 08, 2009 at 10:41:02PM | |
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...e hydrate sample by its molar mass, which will equal the number of mol we just found, as the quantity of S... | Dec 08, 2009 at 8:09:39PM | |
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... The mean is -1 2. (-20 - 14 - 12 + 0 + ... | Dec 08, 2009 at 7:59:43PM | |
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...ide: 5x - 3x + 7 2x + 7 Now move the 7 over t... | Dec 07, 2009 at 10:09:25PM | |
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...und one revolution. distance = 2*pi*r distance = 2*pi*15.5 distance = 97.39 inches b) 1 mile = 1760 yards 1 yard = 36 inches ... | Dec 07, 2009 at 7:52:23PM | |
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...27 2 - 4*16*-540) / 32 t = -27 ± √35289 / 32 As time cannot be negati... | Dec 06, 2009 at 11:31:24PM | |
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...- 4ac) / 2a 12d 2 + 29d + 15 a = 12 b = 29 c ... | Dec 06, 2009 at 11:26:15PM | |
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...2 -3 ± √(-399) / 12 As there is a negative ... | Dec 06, 2009 at 11:21:15PM | |
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...there will be 0.04 mol left. The new concentration is: 0.04 / 1.5 = 0.0267 mol/L If 0.04 mol of Br 2 has reacted,... | Dec 06, 2009 at 9:49:15PM | |
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...t expand the equation: 3x 2 + x 2 ... | Dec 06, 2009 at 8:48:11PM | |
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...9 - 4*16*10) / 32 t = 27 ± √89 / 32 t ... | Dec 03, 2009 at 6:18:46PM | |
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... (z - 1) 2 - 36 = 0 z 2 -2z + 1 - 36 = 0 z 2 - 2z - 35 = 0 (z - 7)(z + 5) = 0 z = 7 and ... | Dec 03, 2009 at 6:14:33PM | |
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...he equation: (u ... | Dec 03, 2009 at 6:03:02PM | |
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...tiply to give +3, and when added and one of them multiplied by three gives 10. In ... | Dec 03, 2009 at 6:02:00PM | |
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...s before, and I appended some info onto it soo... | Dec. 03, 2009 at 12:28:52AM | |
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...96 2l = 48 l = 24 2l + 2w = 72 2*24 + 2w ... | Dec 02, 2009 at 8:17:23PM | |
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...hment, me... | Dec. 02, 2009 at 12:44:58AM | |
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...sin(theta) to solve this problem, where n is a ... | Nov 30, 2009 at 6:21:45PM | |
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...of friction: a) 0.25*75 = 18.75 This is the amount of force that must be applied to overcome st... | Nov. 30, 2009 at 09:03:11AM | |
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...in attachment... | Nov. 30, 2009 at 08:43:58AM | |
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...he hours, and then minus 30 min... | Nov. 30, 2009 at 08:18:26AM | |
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...EFT charge to the normal bill amount. 209.... | Nov. 30, 2009 at 08:16:23AM | |
| $1.00 | Chemistry | How many moles of ammonium sulfate contain 7.4 x 10. 25 atoms of N? | Correct answer
... 10 23 = 122.88 moles of N as there are two N... | Nov 26, 2009 at 10:37:00PM | |
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...e are 6.022 * 10 23 atoms in a mole 0.... | Nov 26, 2009 at 10:33:50PM | |
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... of CO 2 At STP, one mole of gas ... | Nov 26, 2009 at 10:24:56PM | |
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...of zinc you get a mole og H 2 So you will... | Nov 26, 2009 at 9:50:15PM | |
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...will undergo a substitution reaction in light with bromine, but not in the dar... | Nov. 26, 2009 at 12:45:11AM | |
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...e 3.00 M of NiCl 2 means that there is 3.0 moles o... | Nov 24, 2009 at 8:15:23PM | |
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... For Helium P*1.04 = 0.6025*8.31*(25+273) P = 1434.6336 kPa = 14.16 atmospheres The partial pressure of He is 1... | Nov 24, 2009 at 8:11:48PM | |
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... = 25+273 = 298 Kelvin 50 C = 323 Kelvin 102.31*0.0243/(8.31*298) = P*0.0152/(8.31*323) ... | Nov 24, 2009 at 8:04:56PM | |
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... e e ln(t) = e 2 t = e 2 ... | Nov. 24, 2009 at 08:46:01AM | |
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...]) If the pH is 2: 2 = -log([H 3O... | Nov. 24, 2009 at 04:11:19AM | |
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...d what is a reductant. 2Cu 2+ + 4e - -> 2Cu 4I - -> 2I 2 + 4e - As the I - is losing... | Nov. 24, 2009 at 04:07:30AM | |
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... the two situations in terms of V, as the container is fixed. T = 250 273 = 523 K 1.2 atm = 1.2*101.3 = 121.56 kPa n.R.T/P = n.R... | Nov. 24, 2009 at 01:19:49AM | |
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...2CO 3, the molecule will disso... | Nov. 24, 2009 at 12:51:25AM | |
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..., keeping n constant. 3 atmos... | Nov. 24, 2009 at 12:42:29AM | |
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... sides: 423/P 1 = 873/P 2 P 2 =873P 1/423 = 2.0638*P 1 The pressure does not increase by ... | Nov. 24, 2009 at 12:38:08AM | |
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...) b) ln(e 8t ) = 8t ... | Nov 23, 2009 at 8:56:33PM | |
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... M / 2 = 0.75 moles of AgF molar ma... | Nov 23, 2009 at 7:30:52PM | |
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...olar mass of Ti 2CO 3 is: 2*47.9+12+3*16 = 155.8... | Nov 23, 2009 at 7:28:28PM | |
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...F 6 is: 54.94+28.09+6*19 = 197.03 T... | Nov 23, 2009 at 7:25:10PM | |
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...ockets momentum is: 18*1400 = 25200 kgm/s After seperation, the lighter fragment reached a maximum height of 530m. light fragment is half ... | Nov. 22, 2009 at 05:49:49AM | |
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... hours = 2358720 seconds velocity of moon = 2*pi*r/235872... | Nov. 22, 2009 at 05:33:52AM | |
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...0.06*37 = 2.22 kgm/s change in momentum ... | Nov. 22, 2009 at 05:18:13AM | |
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... the east-west and the north-south plane. By symmetry, the ... | Nov 21, 2009 at 11:47:57PM | |
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...m: 200a + 400b + 300c = 3700 b + c = 2a 60a + 200b + 160c + 40(5-b) + 35(5-c) + 20(5-a) = 1810 Use subsititution/calculator/elimination to solve for a, b and c... | Nov. 21, 2009 at 12:04:55AM | |
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...- 5 b)... | Nov 20, 2009 at 11:39:57PM | |
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...= 0.1893 mol of K 3.66g of O 2 = 0.1144 mol of O 2 (the question is unclear, it could be O by itself, in this case its 0.2288 mol of O) The excess reactant in this case is O 2, as only 0... | Nov 19, 2009 at 11:31:42PM | |
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...0.5133/0.142 =3.6148 mol/L T... | Nov 18, 2009 at 8:43:12PM | |
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...0.015 mol/L moles of ammonia = 1.806 *... | Nov 18, 2009 at 8:37:53PM | |
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... kelvin) = celsius 273 5.0 atmospheres = 5*101.3 = 506.5 kPa As the... | Nov 18, 2009 at 8:28:53PM | |
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...ything else onto the o... | Nov. 15, 2009 at 04:48:21AM | |
| $0.25 | Mathematics | 5m plus 3 equals 3m plus 9? | Solution with working and explanation
...9 Move the m's onto ... | Nov. 15, 2009 at 04:46:21AM |