Saturday

April 19, 2014

April 19, 2014

Number of results: 130,592

**Physics**

Let's call the atomic mass unit u. 1 u = 1.6605*10^(-27) kg Mass of C is 12 u Mass of H = 1 u Mass of N = 14 u Mass of O = 16 u
*Saturday, April 19, 2008 at 12:50pm by Count Iblis*

**Physics**

Mass of C14H18N2O5 is: 14 times mass of C + 18 times mass of H etc. Mass of C is 12 u as listed above. Then you get an answer for the mass in terms of u. If then substitute u = 1.6605*10^(-27) kg you get the mass in kg.
*Saturday, April 19, 2008 at 12:50pm by Count Iblis*

**physics**

mass 1 accelerates downward at a so mass 2 accelerates up at a tension = T mass 1: m g - T = m a so 3 g - T = 3 a mass 2: T - mg = m a so T = 2 (g+a) substitute T in mass 1 equation 3 g - 2(g+a) = 3 a g - 2 a = 3 a a = g/5 = 9.81/5 = 1.962 You could also use the total mass of ...
*Friday, March 28, 2014 at 7:27pm by Damon*

**physics**

The linear momentum of a body can be calculated by multiplying its mass by the Question 1 options: time during which the mass moves. distance the mass moves. acceleration of the mass. velocity of the mass. Save
*Sunday, February 10, 2013 at 8:59pm by nicole pierre*

**physics**

The linear momentum of a body can be calculated by multiplying its mass by the Question 1 options: time during which the mass moves. distance the mass moves. acceleration of the mass. velocity of the mass. Save
*Sunday, February 10, 2013 at 8:55pm by nicole pierre*

**conceptual physics**

The linear momentum of a body can be calculated by multiplying its mass by the Question 1 options: time during which the mass moves. distance the mass moves. acceleration of the mass. velocity of the mass. Save
*Sunday, February 10, 2013 at 11:39pm by nicole pierre*

**Physics**

forcenetdown= mass*a mgSinTheta-mu*mg*cosTheta=mass*a but notice mass divides out, so acceleration is independent of mass, if it is moving.
*Wednesday, November 3, 2010 at 5:22pm by bobpursley*

**Physics**

A 0.25 mass is located on the outer edge of a wheel of radius 0.75 m that is turning at a rate of 2 revs/s. Determine the following: 1) The period of the mass 2) The angular speed of the mass in rad/s c) The tangential speed of the mass d) The centripetal acceleration of the ...
*Sunday, December 13, 2009 at 7:11pm by Monika*

**Physics**

78-mu(mass)g=mass*.46 86-mu(mass)g=mass*.76 subtract the first equation from the second 8=mass(.30) solve for mass. b. in either equation,put in mass, g, then solve for mu.
*Sunday, February 12, 2012 at 4:40pm by bobpursley*

**physics**

You know that you can safely stand on the hang-over end of a heavy plank that rests on a table. How far depends on your mass and the mass of the plank. Suppose you can stand on the end of a plank that overhangs the edge of the supporting table 1/4 its total length. Then how ...
*Tuesday, July 22, 2008 at 1:11pm by Claire*

**physics**

A .1kg mass is located on the line between a 5kg mass and a 10kg mass. It is 4m to the right of the 5kg mass and 6m go the left of the 10kg mass. What is the magnitude and direction of the net force on the .1kg mass?
*Thursday, November 17, 2011 at 8:13pm by Jen*

**Physics**

two point masses are located in the same plane. the distance from mass 1 to the center of mass is 3.0m. The distance from mass 2 to the center of mass is 1.0m. What is m1/m2, the ratio of mass 1 to mass 2?
*Tuesday, March 29, 2011 at 5:02pm by Jacob*

**physics**

ANSWER IS 1CM. SOLUTION TOTAL MECHANICAL ENERGY= TO K.E+P.E =0.5MASS VSQUARE+MASS GH K.E TOP +P.E TOP= K.E BOTTOM +P.E BOTTOM 0+0.5MassVSQUARE=Mass(9.81)(0.1)+0 V=1.400 MASS M/SEC 90% LOSE OF ENERGY M.E=MASS(G)(H) @ THE TOP M.E=MASS (9.81)(0.1) M.E=MASS 0.981 REDUCTION OF 90% ...
*Wednesday, February 6, 2013 at 3:25am by EDSEL*

**Physics**

I think you solve it like this...do you have the answer to verify? I am no genius in physics... Forces in the x direction = friction = mass x acceleration. friction forces is found by multiplying the coefficient of friction (u) by the normal force. so. -u x mass x gravity = ...
*Saturday, November 17, 2012 at 5:33pm by Brenda*

**Physics**

A spring stretches 0.150 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.100 m from this equilibrium point and released. Determine a). the spring constant, k, b). the maximum velocity of the mass, c. ) the maximum acceleration of the mass, d...
*Saturday, February 23, 2013 at 6:19pm by Lori*

**physics**

Total mass = water mass + alcohol mass + continer mass. The mass of alcohol added was 510 - 130 - 160 g = 220 g, since the 160 mL of water had a mass of 160 g.
*Friday, December 5, 2008 at 7:52am by drwls*

**PHYSICS**

WEll, the net force upward will be the weight of the mass dropped. F=ma mass*g=(308-mass)*acceleration solve for mass dropped
*Thursday, September 23, 2010 at 12:05pm by bobpursley*

**physics**

An object with a mass of 5000kg is 6.5m away from an object with the mass of 2000kg. What is the force exerted on the smaller mass by the bigger mass?
*Thursday, November 1, 2012 at 6:42pm by Katelyn*

**physics**

ANSWER IS 1CM. SOLUTION TOTAL MECHANICAL ENERGY= TO K.E+P.E =0.5MASS VSQUARE+MASS GH K.E TOP +P.E TOP= K.E BOTTOM +P.E BOTTOM 0+0.5MVSQUARE=M(9.81)(0.1) V=1.400 MASS M/SEC 90% LOSE OF ENERGY M.E=MASS(G)(H) @ THE TOP M.E=MASS (9.81)(0.1) M.E=MASS 0.981 REDUCTION OF 90% DURING ...
*Wednesday, February 6, 2013 at 3:25am by EDSEL*

**College Physics PLEASE HELP**

A spring stretches 0.150 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.100 m from this equilibrium point and released. Determine a). the spring constant, k, b). the maximum velocity of the mass, c. ) the maximum acceleration of the mass, d...
*Saturday, February 23, 2013 at 9:51pm by Lori*

**Physics**

A mass spectrometer is used to separate isotopes. If the bean emerges with a speed of 374 km/s and the magnetic field in the mass selector is 1.5 T, what is the distance between the collectors for 235U+1 and 238U+1? The mass of 235U+1 is 235 u and the mass of 238U+1 is 238 u, ...
*Sunday, March 21, 2010 at 10:05pm by Jane*

**physics**

Lets look at momentum. The impulse equation ought to equal the final momentum. F1*time1+F2*time2=mass*vfinal but Force= mass*acceleration. mass*1.8*4.9-mass*1.7*1.5= mass*Vfinal solve for Vfinal. How far? distance= avg velocity*time = Vf/2 * (1.5+4.9)
*Monday, September 6, 2010 at 9:52pm by bobpursley*

**physics**

A horizontal force of 20 N acted on a 10 kg mass at rest. The force accelerated the mass over a rough surface so that the mass had a speed of 6.0 m/s after 5.0 seconds. How much friction was acting on the mass?
*Friday, October 15, 2010 at 6:39pm by Liz*

**physics**

Use the formula for center of mass. (∑ distance * mass) / total mass = center of mass The masses are what each man is holding, the distance is where each man is from some origin. If you set the origin on one of the men, his distance * mass is 0. Since we know the center ...
*Monday, November 9, 2009 at 10:16am by Philip*

**Physics**

You know the mass of earth, and a well known principle (accept it) that for symetrical distributions, you can consider that mass at the center of a sphere. g=G*Mass/r^2
*Tuesday, September 17, 2013 at 8:01am by bobpursley*

**physics**

PE gained=mass*g*heightinmeters mass is in kg g=9.8Nt/kg find speed from 1/2 mass*v^2=mass*g*heightfell use kg, meters, seconds as units.
*Saturday, January 24, 2009 at 10:44am by bobpursley*

**physics**

The mass of the water displaced is mass=densitywater*volume=1g/cm^3 * PI*2^2*1 mass=4PI grams
*Friday, April 5, 2013 at 3:57am by bobpursley*

**physics**

you have to enter mass for m. 700N is not mass, but weight. mass= 700/9.8 kg
*Friday, February 5, 2010 at 3:30pm by bobpursley*

**physics**

changemomentum=mass*changevelocty= = mass*(vf-vi)=mass(-58-42) force*time=change of momentum
*Monday, January 31, 2011 at 3:00pm by bobpursley*

**physics**

A mass spectrometer as shown in the attached figure is used to separate isotopes. If the bean emerges with a speed of 363 km/s and the magnetic field in the mass selector is 1.4 T, what is the distance between the collectors for 235U+1 and 238U+1? The mass of 235U+1 is 235 u ...
*Friday, April 23, 2010 at 11:51pm by Nelly*

**Physics**

A 25 kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest. What speed does that mass have after being moved 2.0m?
*Saturday, October 16, 2010 at 12:03am by Maia*

**Physics**

A 25 kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest. What speed does that mass have after being moved 2.0m?
*Sunday, October 17, 2010 at 1:04am by Tia*

**Physics**

Hung vertically, a mass less spring extends by 3.00 cm a mass of 739. G is attached to its lower end. The same mass and spring are then placed apart on a table. The spring is fixed in place and then the mass is given a velocity of 0.900 m/s towards the spring. a) What is the ...
*Thursday, October 18, 2012 at 5:26pm by Steeve*

**physics**

A 20.0kg mass is placed a the top of a 3.5m long, 15degree ramp. When released from rest, the mass accelerates down the ramp. The frictional force acting on the mass is 11.0 N. What is the velocity of the mass at the bottom of the ramp.
*Wednesday, December 9, 2009 at 2:57am by Alexandra*

**physics**

A mass of 3.4kg sliding along a frictionless floor at 1.5 m/s strikes and compresses a spring of constant k=295 N/m. The spring stops the mass. How far does the mass travel while being slowed by the spring? How long does the mass take to stop?
*Sunday, January 22, 2012 at 2:36pm by Sasha*

**physics**

They vary. Limits on the mass of a black hole have a miniumu mass of 2E-8kg and a maximum mass near 2E40kg The essence of a black hole is NOT its mass, but its density.
*Friday, December 17, 2010 at 12:31pm by bobpursley*

**Physics**

Physics Help... Applying Newtons Laws Grade 11? On the surface of the earth a geological hammer has a mass of 1500g. Determine its mass and weight on Mars where g=3.6 m/s^2.
*Saturday, October 22, 2011 at 12:11pm by Erin*

**Physics**

If the fulcrum is displaced 1 cm away from unknown mass M, the reference mass m that balances M satisfies the relation: 24m = 26 M m = 13/12 M If the fulcrum is in the correct place in the middle, M = m. The person who is buying a mass M will be charged for a mass m, the ...
*Friday, December 10, 2010 at 3:48am by drwls*

**Physics**

1.5 Mg/m3 is the same as 1.5 g/cm^3 The volume is V = (pi/6)D^3 = 431.6 cm^3 The mass is 647.4 g There are 454 g mass per lb mass, so that is 1.426 lb mass. That weighs 1.426 lb force when g = 9.81 m/s^2, the Earth-surface value. Although most physics problems strongly advise ...
*Wednesday, January 26, 2011 at 9:23am by drwls*

**physics**

You need to know how much mass was dropped, compared to the mass of the balloon. The buoyancy force will be the same, but the acceleration will increase in proportion to the reduction of mass. Knowing the speed of the balloon when the mass was dropped does not provide the ...
*Tuesday, August 31, 2010 at 12:25am by drwls*

**Physics**

Thanks drwls. I'm having trouble with part b though. What is R? For the appropriate mass, am I suppose to use the density times the thickness to get the mass of the sail and with that, add the mass from payload?
*Friday, March 11, 2011 at 3:03pm by Daniel*

**physics**

A mass of 2kg was thrown straight up with a speed of 15m/s. (a) find the initial KE (b) how high does the mass rise? (c) what is the GPE of the mass at the highest point?
*Tuesday, March 15, 2011 at 11:24am by Madi*

**physics**

A mass was dropped from a height of 20m. (a) find its speed at impact. (b) what can you say about the initial GPE of the mass and the KE of the mass just as it hits the ground?
*Tuesday, March 15, 2011 at 11:25am by Madi*

**physics**

A spherical mass 'm'is dropped vertically off a building starting from rest and 'y=0'.the mass experience a resistive force 'FR=-bv'.let 'r=b/m'.find the position'y(t)'of mass???
*Thursday, April 26, 2012 at 6:30am by M.sani*

**physics **

a 200 gram mass is balanced at one end of a meterstick and a 100 gram mass is at the other. the center of mass is 36.75 cm from the 200 gram mass. What is the mass of the meterstick? Thank you for you help
*Saturday, January 28, 2012 at 9:17pm by Ken*

**Physics AP**

A conical pendulum is formed by attaching a 50 g mass to a 1.2m string. The mass swings around a circle of radius 25cm. A claculate the speed of the mass. B Calculate the acceleration of the mass. C calculate the tension in the string
*Thursday, December 19, 2013 at 9:16am by Robert*

**Physics**

A 0.495-kg mass is attached to a horizontal spring with k = 108 N/m. The mass slides across a frictionless surface. The spring is stretched 33.3 cm from equilibrium, and then the mass is released from rest. Find the speed of the mass when it has moved 4.79 cm? Find the maximum...
*Wednesday, February 22, 2012 at 3:28pm by Bradley*

**Physics**

A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
*Monday, September 12, 2011 at 6:33pm by Diane*

**Physics**

A mass (m) rest on a frictionless slope within our physics lab room. The angle of the ramp with respect to the floor is 35 degrees. What is the magnitude of the mass's acceleration?
*Monday, September 12, 2011 at 6:39pm by Diane*

**Help me please with physics**

A 25kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest. a) what speed does the mass have after 4.0 seconds? b) what speed does the mass have after being moved 2...
*Friday, October 15, 2010 at 7:13pm by Nicole*

**physics**

A spherical mass 'm'is dropped vertically off a building starting from rest and 'y=0'.the mass experience a resistive force 'FR=-bv'.let 'r=b/m'.find the position'y(t)'of mass??? pizzzzzzzzzzz help me.........
*Monday, April 30, 2012 at 12:55am by m sani*

**Physics**

A frictionless pulley with zero mass is attached to the ceiling. Mass M2 = 0.140 kg is being accelerated downward with 1.30 m/s2. Calculate the mass m1.
*Thursday, October 4, 2012 at 11:33pm by Kattoossa*

**Physics**

A 10-kg mass is projected straight up with a speed of 20.0 meter/second. 1. Find the initial kinetic energy of the mass 2. To what height does the mass rise?
*Tuesday, October 1, 2013 at 11:39am by Anonymous*

**physics**

You must have misspelled and omitted something. I assume you mean pre-ignition mass, not per-ignition mass, which makes no sense. If so, what is the pre-ignition mass? The number you have provided is a mass flow RATE. The rocket lifts off then the trust equals the weight. Use ...
*Wednesday, February 15, 2012 at 5:01pm by drwls*

**Dynamics - Physics**

You pull upward on a stuffed suitcase with a force of 118 N, and it accelerates upward at 0.765 m/s2. What is the mass of the suitcase? I tried to find the mass and got the mass being 90.27kg but that isn't right. Can someone explain how to find the mass. Would you use sigma ...
*Sunday, January 17, 2010 at 9:25pm by Robert C*

**Physics**

You pull upward on a stuffed suitcase with a force of 118 N, and it accelerates upward at 0.765 m/s2. What is the mass of the suitcase? I tried to find the mass and got the mass being 154.25 kg but that isn't right. Can someone explain how to find the mass? Would you use ...
*Monday, January 18, 2010 at 3:57pm by Robert C*

**physics**

Consider a 1kg mass at rest at the equator.Because of the earths rotation , the mass experiences a centripetal acceleration. a)Draw free body diagram of mass b)Find centripetal force acting in the mass c)Compare apparent weight and true weight d)what fictitious force would the...
*Thursday, February 24, 2011 at 8:20pm by Sandra*

**physics**

A vertical spring (k = 1040 N/m) is compressed a distance of 11.6 cm. A 47.9 g mass is placed on the spring, then released so the mass flies upward. When the mass is 120 cm above the spring, what is the speed of the mass?
*Thursday, December 10, 2009 at 6:53pm by Cory *

**Physics**

The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). (a) What is its molecular mass (in atomic mass units)? u (b) What is the mass (in kg) of an aspartame molecule? kg I know I have to get the totally mass of the aspartame, but I'm unsure how to ...
*Saturday, April 19, 2008 at 12:50pm by Ron*

**Physics**

In an elastic collision: mass a is 1kg, and is moving at 100ms^1 in the +ve x direction when it hits mass b, 10kgs at rest. Given: mass a moves off at 80 ms^1 in the -ve x direction. What's the final velocity of mass b. Using cons of momentum, i say 2 ms^1 in the +ve x ...
*Tuesday, June 16, 2009 at 1:05pm by charlie*

**Physics**

A horizontal force with a magnitude of 3.0 newtons applied to a 7.0 kilogram mass moves the mass horizontally a distance of 2.0 meters. Determine the work done against gravity in moving the mass. What is the formula that you use?
*Monday, January 16, 2012 at 10:11am by Carlos*

**physics**

The weight force (in newtons) is the mass (in kg) multiplied by the acceleration of gravity (g), which is 9.8 m/s^2. The 6.0 kg mass weighs 58.8 N and the 12.0 kg mass weights 117.6 N. Different masses accelerate at the same rate because accleration = Weight/Mass = g
*Sunday, April 1, 2012 at 1:29am by drwls*

**physics**

How can I calculate the tension in the two cords that are labeled A and B in a two mass system? Cord A is on top with a 1 kg mass attached and Cord B connects this mass to a 2 kg mass. The two mass system accelerates directly upward at 2m/s^2.
*Saturday, November 21, 2009 at 7:30pm by Josh*

**Physics**

A 0.51-kg mass is attached to a horizontal spring with k = 108 N/m. The mass slides across a frictionless surface. The spring is stretched 26 cm from equilibrium, and then the mass is released from rest. (a) Find the mechanical energy of the system. (b) Find the speed of the ...
*Saturday, June 2, 2012 at 12:07am by Vladimir*

**Physics**

A 0.53-kg mass is attached to a horizontal spring with k = 106 N/m. The mass slides across a frictionless surface. The spring is stretched 27 cm from equilibrium, and then the mass is released from rest. (a) Find the mechanical energy of the system. (b) Find the speed of the ...
*Saturday, June 2, 2012 at 8:13pm by Jimmy*

**Physics**

A 0.30 kg mass is attached to a spring with a spring constant 170 N/m so that the mass is allowed to move on a horizontal frictionless surface. The mass is released from rest when the spring is compressed 0.15 m. (a) Find the force on the mass. N (b) Find its acceleration at ...
*Sunday, October 21, 2012 at 9:01pm by roro*

**Physics**

An unknown mass is suspended by a string from one end of an uniform stick which has a mass of 120 g. In order to balance the stick, it must be supported one third of its length away from the mass. the unknown mass is therefore?
*Sunday, May 20, 2012 at 9:17am by Brandon*

**Physics**

A 3 m long lever is used to lift a mass of 500 kg. If a force of 200 N is to be used to life the mass, then how far from the mass should the fulcrum be placed? Assume the mass and the force act at the ends of the lever.
*Tuesday, December 11, 2012 at 6:37pm by Colby*

**Physics**

A 3 m long lever is used to lift a mass of 500 kg. If a force of 200 N is to be used to life the mass, then how far from the mass should the fulcrum be placed? Assume the mass and the force act at the ends of the lever.
*Tuesday, December 11, 2012 at 6:37pm by Colby*

**Physics**

A 2.50 mass is pushed against a horizontal spring of force constant 26.0 on a frictionless air table. The spring is attached to the tabletop, and the mass is not attached to the spring in any way. When the spring has been compressed enough to store 15.0 of potential energy in ...
*Friday, October 21, 2011 at 10:46pm by Lauren*

**physics**

acceleration= force/total mass total mass is 2000kg, if my math is correct. I dont know where C is, but just subtract the mass following C.
*Tuesday, March 18, 2008 at 10:51am by bobpursley*

**Physics**

String B applies a force on the 2 kg mass, to balance that mass's 2 g = 19.6 N weight. The 1 kg mass has not effect upon the tension in cord B
*Tuesday, November 24, 2009 at 5:30am by drwls*

**physics**

a mass of 0.2kg is attached to a spring of negligible mass. if the mass executes simple harmonic motion with a period of 0.5s, what will be the spring constant?
*Saturday, March 2, 2013 at 11:44am by naynay*

**Physics**

net force= mass*acceleration mg*sinTheta-mg*mu*cosTheta=mass*a solvefor a. Notice mass divides out.
*Tuesday, November 5, 2013 at 3:34pm by bobpursley*

**physics**

Calculate the number of H2O molecules in a human body of mass 50.6 kg. Assume that, on average, water makes up 62% of the mass of a human body. (Use 1.0 u for the atomic mass of hydrogen, and 16.0 u for the atomic mass of oxygen.)
*Friday, April 12, 2013 at 11:00pm by kira*

**college physics**

Oh, the larger block (mass) is in front. The force is pushing on the large mass and the little mass is in front of the large mass. Force -> Big Mass -> little mass Acceleration isn't given, it's just asking the "magnitude of the force of either of these blocks on the ...
*Thursday, December 17, 2009 at 8:44pm by Ryan*

**Physics**

find the molecular mass (N2), which in grams is the mass of a mole of nitrogen molecules, so dividing by avagradros number will give the mass of a single N2.
*Friday, November 20, 2009 at 6:37pm by bobpursley*

**physics**

Just a minor correction. kg is a measure of Mass, not weight. If his mass is 75kg on Earth, his mass on the Moon is 75kg.
*Friday, October 10, 2008 at 1:47pm by bobpursley*

**Physics**

Molecules of N2 do not have a mass of .028kg. Perhaps a mole of them have that mass, so divide by avagrado's number for the mass of each.
*Thursday, November 19, 2009 at 7:21pm by bobpursley*

**Physics I need help someone plz help out**

You do not need to use E=mc^2. Calculate the sum of mass of products in (u) and mass of reactants in (u). Then, mass of product minus mass of reactants. It will be negative, which means energy is released (exorgenic rxn)and Q will be positive. Now, to find Q in Mev, Take that ...
*Wednesday, May 8, 2013 at 6:51pm by Nataliya*

**physics**

A 0.11kg mass is vibrating at the end of a horizontal spring along a frictionless surface. If the spring constant is 0.52 N/m, what is the displacement of the mass when the acceleration of the mass is 0.25m/s^2?
*Wednesday, November 24, 2010 at 12:59pm by jane*

**Physics 11th grade 'Heat' `**

heat=mass*lf+ mass*cice*(7)+mass*cwater*25 This assumes an initial temp of the ice at MINUS 7C
*Saturday, March 16, 2013 at 6:35pm by bobpursley*

**physics**

You do not have to know how the mass is distributed, only that the center of mass is 5/6 of the way from one end. Require that the total moment about the fulcrum be zero. The lever arm to the center of mass from the fulcrum will be L/2 - L/6 = L/3 Let x be the location where ...
*Thursday, November 15, 2012 at 2:50am by drwls*

**physics**

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 4 kg mass is suspended from it the spring stretches 90 mm when the mass comes to rest. (a) What is the spring constant for the spring B)If the mass is then pulled down an additional ...
*Monday, October 31, 2011 at 3:34pm by Andrea*

**physics**

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 3.3 kg mass is suspended from it the spring stretches 105 mm when the mass comes to rest. (a) What is the spring constant for the spring? (b) If the mass is then pulled down an ...
*Tuesday, November 1, 2011 at 7:05pm by Austin*

**physics**

force*time= mass(change velocity) = mass(-45.8- (+41))= -mass*86.5 solve for force
*Wednesday, November 9, 2011 at 7:47pm by bobpursley*

**physics**

A NON-UNIFORM board of length L and mass M has a center of mass at 5/6L. If the fulcrum is placed at the center of the board and a block of mass m is placed at the right of the board, then where must a block of mass 3m be placed to balance the board? I assumed new variables ...
*Thursday, November 15, 2012 at 2:50am by min*

**Physics**

A mass m = 1.50 kg oscillates on an ideal,massless horizontal spring with a constant k = 73.5 N/m.The amplitude of oscillation is 10.0 cm.The system is frictionless. The positive x-direction is to the right. What is the mass's natural period of oscillation? At t = 0, the mass ...
*Wednesday, December 2, 2009 at 10:34pm by Sandhya*

**physics**

The other end of the rope in the previous question is attached to a 44kg mass. As the boy pulls on the rope, the mass rises 25 cm. How much work is done on the mass?
*Thursday, September 9, 2010 at 11:14pm by daniel fieldman*

**Physics**

Find the center of mass of the carbon monoxide molecule , given that carbon has a mass of 12 u, oxygen has a mass of 16 u , and the two atoms are 0.111 nm apart.
*Tuesday, November 30, 2010 at 6:13pm by Mattie*

**physics**

Find the center of mass of the carbon monoxide molecule , given that carbon has a mass of 12 u, oxygen has a mass of 16 u , and the two atoms are 0.111 nm apart.
*Tuesday, November 30, 2010 at 7:55pm by Mattie*

**Physics**

A pendulum is constructed of a 6.7 gram mass suspended on a 55cm thread. The mass is displaced vertically 55 cm to a point exactly horizontal from the top of the thread and released. The mass swings down and is cut directly above the mass when the mass is 120 cm above the ...
*Tuesday, December 7, 2010 at 9:51pm by Hannah*

**physics please help!!**

Hung vertically, a massless spring extends by 3.00 cm when a mass of 992.0 g is attached to its lower end. The same mass and spring are then placed apart on a table. The spring is fixed in place and then the mass is given a velocity of 0.800 m/s towards the spring. a) What is ...
*Thursday, October 6, 2011 at 7:05pm by archi*

**College Physics 1**

A mass is oscillating on a spring with a period of 4.60s. At t=0s the mass has zero speed is at x=8.30cm. What is the value of t the first time after t=0s that the mass is at x=4.15 cm?
*Wednesday, November 28, 2012 at 8:09pm by Erin*

**physics Helppp**

3 mass are collienear formation A, B, C massA is 363 kg and is .5m away from mass B (517 kg)and mass B is .25m away from mass C (154kg) Find the magnitude and direction of the net gravitational force acting on each of the three particles (let the direction to the right be ...
*Sunday, November 21, 2010 at 1:19am by hy*

**physics**

A 0.20-kg mass is hung from a vertical spring of force constant 55 N/m. When the spring is released from its unstretched equilibrium position, the mass is allowed to fall. Use the law of conservation of energy to determine (a) the speed of the mass after it falls 1.5 cm (b) ...
*Monday, April 25, 2011 at 5:43am by Syed*

**physics **

Which of the following is correct for the nuclear fission reaction? Choose one answer. a. The mass of the daughter nucleus is always greater than the mass of the parent nucleus. b. The mass of the daughter nucleus is always less than the mass of the parent nucleus. c. The mass...
*Thursday, April 28, 2011 at 8:01pm by ashley --*

**Physics 1**

A mass of 5.2 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 29 Newtons. If the length of the incline is 78 meters and the mass is originally at rest at the top of the incline and then released, how long does ...
*Saturday, October 1, 2011 at 1:45am by Jon*

**Physics 1**

A mass of 5.2 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 29 Newtons. If the length of the incline is 78 meters and the mass is originally at rest at the top of the incline and then released, how long does ...
*Tuesday, October 4, 2011 at 11:57pm by J*

**Physics**

A mass of 5.6 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 30 Newtons. If the length of the incline is 58 meters and the mass is originally at rest at the top of the incline and then released, how long does ...
*Tuesday, October 4, 2011 at 11:44pm by Tina*

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