Monday

April 21, 2014

April 21, 2014

Number of results: 24,166

**Physics - Spring balls**

A 275g ball is resting on top of the spring that is mounted on the floor. You exert a force of 325N on the ball and it compresses the spring 44.5cm. If you release the ball from the position, how high above the equilibrium position of the spring-ball system will the ball rise?
*Saturday, October 30, 2010 at 12:53pm by Farah*

**physics**

A 12 kg block is released from rest on a 30 degree fricitonless incline. Below the block is a spring that can be compressed 2 cm by a force of 270 N. The block momentarily srops when it compresses the spring by 5.5 cm. a) How far does the block move down the incline from its ...
*Friday, January 5, 2007 at 5:04pm by Jamie*

**Physics(Checking answer)**

Sorry for the re-post but I really need to know this, but now I just want to know if the question is right. A spring with a force of 5.2 N/m has a relaxed length of 2.45. When a mass is attached to the end of the spring and allowed to come to rest. the vertical length of the ...
*Thursday, November 4, 2010 at 10:39pm by Pablo*

**physics (Newton's Laws)**

One end of a spring is attached firmly to a wall, and a block is attached to the other end. When the spring is fully compressed, it exerts a force F on the block, and when the spring is fully extended, the force it exerts on the block is −F. What is the force of the ...
*Wednesday, March 13, 2013 at 10:39pm by Kathy*

**Physics**

A load of 54 N attached to a spring hanging vertically stretches the spring 4.9 cm. The spring is now placed horizontally on a table and stretched 14 cm. What force is required to stretch it by this amount?
*Tuesday, November 23, 2010 at 3:28pm by Kristen*

**Physics**

A load of 54 N attached to a spring hanging vertically stretches the spring 4.9 cm. The spring is now placed horizontally on a table and stretched 14 cm. What force is required to stretch it by this amount?
*Tuesday, November 23, 2010 at 3:25pm by Kristen*

**aaa**

You find that if you hang a 1.85 weight from a vertical spring, it stretches 5.50 . What is the force constant of this spring in N/m? How much mass should you hang from the spring so it will stretch by 8.45 from its original, unstretched length?
*Wednesday, October 12, 2011 at 3:01pm by aaa123*

**Physics**

A load of 59 N attached to a spring hanging vertically stretches the spring 5 cm. The spring is now placed horizontally on a table and stretched 14 cm. What force is required to stretch it by this amount?
*Thursday, November 22, 2012 at 3:19pm by Maleka*

**physics**

The force required to stretch a Hooke’s-law spring varies from 0 N to 68.1 N as we stretch the spring by moving one end 16.2 cm from its unstressed position. Find the work done in stretching the spring
*Thursday, December 20, 2012 at 8:09pm by james*

**physic**

Hooke's law describes a certain light spring of unstretched length 30.0 cm. When one end is attached to the top of a door frame, and a 8.40-kg object is hung from the other end, the length of the spring is 40.00 cm. (a) Find its spring constant. ____ kN/m (b) The load and the ...
*Wednesday, October 21, 2009 at 2:39am by Chan*

**physics please help!!**

A moving 2.20kg block collides with a horizontal spring whose spring constant is 419 N/m. The block compresses the spring a maximum distance of 9.00cm from its rest postion. The coefficient of kinetic friction between the block and the horizontal surface is 0.140. a) What is ...
*Thursday, October 6, 2011 at 8:55pm by archi*

**physics**

1. The answer is zero, because your motion is perpendicular to that of the weight force. Npte that you must also multiply M by g to get weight, but the answer is still zero. 4. What don't you understand? Work is force times distance. If your friend uses half the force but goes...
*Wednesday, October 17, 2007 at 10:31am by drwls*

**physics**

A moving 1.60 kg block collides with a horizontal spring whose spring constant is 295 N/m. The block compresses the spring a maximum distance of 3.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.500. What is ...
*Thursday, February 28, 2008 at 9:58pm by rory*

**Physics**

A moving 4.80 kg block collides with a horizontal spring whose spring constant is 243 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.390. What is ...
*Wednesday, March 5, 2008 at 7:54am by Courtney*

**physics**

A moving 3.20 kg block collides with a horizontal spring whose spring constant is 224 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.490. What is ...
*Monday, December 30, 2013 at 4:59pm by Laura*

**Physics**

A moving 3.20 kg block collides with a horizontal spring whose spring constant is 224 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.490. What is ...
*Tuesday, December 31, 2013 at 11:36am by Laura*

**Physics**

A moving 3.20 kg block collides with a horizontal spring whose spring constant is 224 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.490. What is ...
*Wednesday, January 1, 2014 at 8:00pm by Laura*

**physics**

A new type of spring is found where the spring force F is given by F=-kx + bx^2 where k=400 N/ m and b=100 N/m^2 and x is the expansion (or compression) of the spring from its equilibrium position. The spring is attached to a point mass of 1 kg sitting on a horizontal ...
*Monday, April 4, 2011 at 3:48pm by Physics*

**physics imperfect spring**

The force required to compress an imperfect horizontal spring an amount x is given by F= 150x+12x^3, where x is in meters and F in newtons. If the spring is compressed 2.1 m, what speed will it give to a 4.0 kg ball held against it and then released?
*Thursday, May 21, 2009 at 9:31pm by annie*

**Physics**

A block rests on a frictionless surface. Find its instantaneous acceleration when the spring on the left is compressed 4.48 cm while the spring on the right is stretched 10.3 cm. Each spring has a force constant of 1.05 103 N/m.
*Sunday, October 14, 2012 at 11:43am by Dunky*

**physics**

when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what is the force constant of the spring. B) if the 2.50 kg object is removed how far will the spring strecth if a 1.25 kg block is hung on it. C) how ...
*Sunday, November 6, 2011 at 2:41pm by joe*

**physics**

assuming the spring is horizonal. you have to figure the max force. forceonTOP block=max spring force=k*D where D is max amplitude Now this cannot be greater than the friction force, 1.35*g*mu k*D=1.35 g mu d=1.35g*mu/k check my thinking.
*Thursday, January 24, 2013 at 8:29pm by bobpursley*

**college physics**

Ok, net force upward pulling on the spring is thrust-mg That net force * distance= 1/2 k distance^2 + 1/2 m v^2 Assume mass of rocket stays same, in reality, it does not as fuel is burned. Make certain distance is in meters, v in m/s If not tied to spring.. Vf^2=2ad where a= ...
*Thursday, October 28, 2010 at 9:34pm by bobpursley*

**Physics - Eqilibrium position of a spring-ball**

A 275g ball is resting on top of the spring that is mounted on the floor. You exert a force of 325N on the ball and it compresses the spring 44.5cm. If you release the ball from the position, how high above the equilibrium position of the spring-ball system will the ball rise?
*Tuesday, October 26, 2010 at 1:46am by Anonymous*

**college physics**

To stretch a spring 7.00 cm from its unstretched length, 16.0 J of work must be done. What is the force constant of this spring? What magnitude force is needed to stretch the spring 7.00 cm from its unstretched length? How much work must be done to compress this spring 4.00 {\...
*Tuesday, September 21, 2010 at 11:07pm by jon*

**physics (please check work)**

A force of 10N holds an ideals spring with 20-N/m spring constant in compression. The potential energy stored in the spring is: I obtained the answer of 10J. I got thatk= -F/x --> the potential energy of the spring = 1/2kx^2. 10J= 1/2(20N/m)(X)^2. Is that right, i'm not ...
*Sunday, November 5, 2006 at 12:38pm by Diane*

**Physics**

The block in lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 56 N/m. Initially, the spring is at its relaxed length and the block is stationary at x = 0 m. Then an applied force with a constant magnitude of 3.0...
*Sunday, January 17, 2010 at 9:17pm by Aaron*

**Calculus**

The average force over the 9-10 cm interval is 900 N. Since force is linear with length (x), that means the force is 900 N at x = 9.5 cm. Similarly, the force is 1500 N at x = 10.5 cm. Those two points in an F = mx + b curve can be fit with F = 600 (x - 8 cm) N F = 0 when x = ...
*Sunday, January 31, 2010 at 1:37am by drwls*

**Physics**

A 250 g block is dropped onto a relaxed veritcal spring that has a spring constant of k=2.5 N/cm. The block becomes attached to the spring and compresses the spring 12 cm befor momentarily stopping. While the spring is being compressed, what work is done on the block by a) ...
*Saturday, December 16, 2006 at 3:32pm by Me*

**11th grade**

a spring with a spring constant of 4 newtons per meter is compressed by a force of 1.2 newtons. what is the total elastic potential energy stored in this compressed spring
*Tuesday, April 13, 2010 at 10:22pm by Anonymous*

**Physics - Spring gun**

k is force needed to compress spring / distance moved k = 9.13/.0487 = 187 N/m Work done = potential energy in spring = (1/2) k x^2 = (1/2)(187)(.0487)^2 = 0.222 Joules
*Sunday, May 29, 2011 at 5:55pm by Damon*

**Physics**

A 235-g block is pressed against a spring of force constant 1.55 kN/m until the block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at 60.0° to the horizontal. Using energy considerations, determine how far up the incline the block moves from...
*Tuesday, November 8, 2011 at 10:44pm by marvin*

**Physics**

A 235-g block is pressed against a spring of force constant 1.55 kN/m until the block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at 60.0° to the horizontal. Using energy considerations, determine how far up the incline the block moves from...
*Tuesday, November 8, 2011 at 11:00pm by marvin*

**physics**

Janet wants to find the spring constant of a given spring, so she hangs the spring vertically and attaches a 0.42 kg mass to the spring's other end. If the spring stretches 4.0 cm from its equilibrium position, what is the spring constant?
*Wednesday, February 22, 2012 at 1:48pm by McKenzie*

**Physics Help PLEASE!!!**

A spring that is 0.7 m in length elongates to 1.06 m when a 20 Newton force is exerted to stretch the spring. By how much more does the spring stretch when an additional 8 Newtons of force is exerted on it? 1.01 0.053 0.072 0.45 0.144 0.561 0.736 1.06 I think there are 3 parts...
*Tuesday, November 30, 2010 at 2:48pm by Jael*

**physics**

A spring is resting vertically on a table. A small box is dropped onto the top of the spring and compresses it. Suppose the spring has a spring constant of 450 N/m and the box has a mass of 1.5 kg. The speed of the box just before it makes contact with the spring is 0.49 m/s...
*Sunday, June 19, 2011 at 10:23pm by Anonymous*

**physics**

When a 2.50-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.13 cm. a)What is the force constant of the spring? b) If the 2.50-kg object is removed, how far will the spring stretch if a 1.25-kg block is hung on it?
*Wednesday, October 5, 2011 at 7:48pm by Anonymous*

**physics**

A 7 kg block is pushed by an external force against a spring with spring constant 124 N/m until the spring is compressed by 2.1 m from its uncompressed length (x = 0). The block rests on a horizontal plane that has a coefficient of kinetic friction of 0.7 but is NOT attached ...
*Sunday, January 5, 2014 at 2:52pm by Name*

**physics **

A 1.o kg cart A and 2.0 kg cart B are at rest on a frictionless table. A cord and a spring of negligible mass join the two carts. The spring is compressed 0.060m between the two carts until the spring's potential energy is 12 Joules. When the cord is cut, the spring will force...
*Sunday, January 9, 2011 at 12:29pm by unknown *

**physics**

a spring is stretched 5*10^2m by a force of 5*10^-4N.a mass of 0.001kg is placed on the lower end of the spring.after equilibrium has been reached, the upper end of the spring is moved up and down so that the external force acting on the mass is given by F(t)=20coswt.calculate...
*Saturday, February 11, 2012 at 2:25pm by ashely*

**physics again it didnt work.**

A moving 1.60 kg block collides with a horizontal spring whose spring constant is 295 N/m. The block compresses the spring a maximum distance of 3.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.500. What is ...
*Saturday, March 1, 2008 at 11:56am by rory*

**PHYSICS**

A 0.49 kg object is attached to a spring with a spring constant 167 N/m so that the object is allowed to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.12 m. Find the force on the object.
*Saturday, November 20, 2010 at 5:41pm by KIM *

**physics**

The work done by the spring is the elastic potential energy, which is (kx^2)/2. The energy dissipated by the friction is the work done by the friction force (the friction force x the distance). These two things added together (the work of the spring and the energy of the ...
*Thursday, February 28, 2008 at 9:58pm by DanH*

**Simple Harmonic Motion**

The spring constant is the change in spring length divided by the change in force. If your spring obeyed Hooke's law, the distance would change by the same amount each time a 50g mass was added. That does not seem to be what is happening. Your curve is not linear. Either there...
*Tuesday, February 8, 2011 at 9:08pm by drwls*

**Physics: Energy & Work Done**

A spring of negligible mass has a force constant k = 1600 N/m. You place the spring vertically with one end on the floor. You then drop a 1.20 kg book onto it from a height of 0.8 m above the top of the spring. Find the maximum distance the spring will compress. The answer is ...
*Friday, September 14, 2012 at 7:01am by Anonymous*

**physics**

A vertically hanging spring has a mass of 50 N hanging from it. Under these conditions, the spring stretches 10 cm. The spring is then placed on a horizontal table and stretched 20 cm. What force is required in the second scenario?
*Wednesday, July 18, 2012 at 2:35am by kyle*

**physics**

The maximum speed of a 3.7-{\rm kg} mass attached to a spring is 0.66 m/s, and the maximum force exerted on the mass is 11 N. What is the amplitude of motion for this mass? What is the force constant of the spring? What is the frequency of this system?
*Sunday, November 20, 2011 at 8:43pm by shaz*

**physics**

The max speed of a 3.1 kg mass attached to a spring is .68 m/s and the max force exerted on the mass is 11N. What is the amplitude of motion on the mass? What is the force constant of the spring? And what is the frequency of oscillation?
*Thursday, January 27, 2011 at 7:44pm by fred*

**PHYSICS(help)**

I assume that you found the speed of the block as it left the track and hit the spring from conservation of energy Call it Vi = sqrt(2gh)= sqrt(2gR) the Ke of the block when it hits the spring is then Ke = (1/2)m Vi^2 the retarding force of friction is Ff = m g mu where mu = ...
*Friday, January 10, 2014 at 3:31pm by Damon*

**science/physics**

A spring has a force constant of 590.0 N/m. (a) Determine the potential energy stored in the spring when the spring is stretched 3.77 cm from equilibrium. (b) Determine the potential energy stored in the spring when the spring is stretched 3.26 cm from equilibrium. (c) ...
*Thursday, December 10, 2009 at 5:43pm by salpointe*

**science/physics**

A spring has a force constant of 590.0 N/m. (a) Determine the potential energy stored in the spring when the spring is stretched 3.77 cm from equilibrium. (b) Determine the potential energy stored in the spring when the spring is stretched 3.26 cm from equilibrium. (c) ...
*Thursday, December 10, 2009 at 5:53pm by salpointe*

**physics**

A moving 2.8 kg block collides with a horizontal spring whose spring constant is 215 N/m (see figure). The block compresses the spring a maximum distance of 11.5 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.48...
*Tuesday, November 23, 2010 at 10:02am by help*

**physics**

A bullet of mass 15 gm is shot horizontally into a 15 kg block of wood attached to a spring of spring constant 1000 N/m. The force of the impact compresses the spring 10 cm. What is the velocity of the bullet?
*Saturday, November 13, 2010 at 1:32pm by kwaku*

**PHYSICS**

A pen contains a spring with a spring constant of 228 N/m. Whe the tip of the pen is in its retracted position, the spring is compressed 4.40 mm from its unstrained length. In order to push the tip out and lock it into its writing position, the spring must be compressed an ...
*Tuesday, December 14, 2010 at 9:17am by need*

**physics**

A spring with a force constant of 300 n/m is compressed 5 cm. What is the work done on the spring?
*Tuesday, November 17, 2009 at 3:05pm by Student*

**science**

if a force of 50 N stretches a spring 250 mm, what is the spring constant?
*Thursday, February 10, 2011 at 3:55pm by joey*

**Physics**

When a 3.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.07 cm. (a) What is the force constant of the spring? N/m (b) If the 3.00-kg object is removed, how far will the spring stretch if a 1.50-kg block is hung on it? ...
*Tuesday, September 27, 2011 at 7:08pm by Allie*

**Physics URGENT!!!**

A spring of negligible mass stretches 2.14 cm from its relaxed length when a force of 8.40 N is applied. A 1.300 kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin to x=5.00 cm and ...
*Monday, November 19, 2012 at 10:42am by Sarah*

**Physics**

A spring is mounted horizontally. A crate which has a mass of 8.5kg is pressed against the spring with a force of 350N. As a result the spring is compressed a distance of 82.0cm. The mass is then released and is allowed to slide along the horizontal, frictionless surface. What...
*Sunday, February 26, 2012 at 6:49pm by James*

**physics**

A puck of mass 4 kg is attached to a spring of force constant 100 N/m and natural length 0.07 meters. The other end of the spring is attached to a fixed pivot. The puck is set into circular motion so that the spring is stretched 0.03 meters from its natural length as the puck ...
*Monday, November 26, 2012 at 8:10pm by rebecca*

**Physics**

if a force of 50 N stretches a spring 0.10 m, what is the spring constant?
*Tuesday, February 17, 2009 at 10:48am by y912f*

**Physics**

Suppose the block is released from rest with the spring compressed 5.50 cm. The mass of the block is 1.60 kg and the force constant of the spring is 965 N/m . Assume the surface is frictionless. A) What is the speed of the block when the spring expands to a compression of only...
*Sunday, May 26, 2013 at 3:27pm by Leah*

**Physics**

Hooke's law states that it takes a force equal to kΔx is required to stretch a sorting a distance Δx beyond its rest length. A) determine a formula in terms of k & Δx that represents the amount of work required to stretch a spring to a distance Δx. Hint: ...
*Friday, January 3, 2014 at 10:45pm by Sandara*

**Physics**

A tiny spring, with a spring constant of 1.20 N/m, will be stretched to what displacement by a 0.005 0-N force?
*Sunday, December 19, 2010 at 2:59pm by Amanda*

**Science**

A stretched spring with k=21.6 N/m is pulling with a force of 1.5 N. How much work was done to stretch the spring
*Wednesday, February 6, 2013 at 10:49pm by Jane*

**physics**

An 8 g bullet is shot into a 4.0 kg block, at rest on a frictionless horizontal surface. The bullet remains lodged in the block. The block moves into a spring and compresses it by 7.9 cm. The force constant of the spring is 1400 N/m. What is the impulse of the block (including...
*Tuesday, November 6, 2012 at 8:20pm by Zach*

**physics**

A(n) 96.1 g ball is dropped from a height of 59.1 cm above a spring of negligible mass.The ball compresses the spring to a maximum displacement of 4.75403 cm. The acceleration of gravity is 9.8 m/s^2. Calculate the spring force constant k. Answer in units of N/
*Tuesday, March 19, 2013 at 8:05am by Anonymous*

**Mechanics**

A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached, as the drawing illustrates. The spring constant of the spring is 325 N/m. The coefficient of kinetic friction between the lower ...
*Monday, March 5, 2012 at 2:19pm by MLC*

**physics**

When a 2.60-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.30 cm. (a) What is the force constant of the spring? (b) If the 2.60-kg object is removed, how far will the spring stretch if a 1.30-kg block is hung on it? (c) ...
*Wednesday, April 21, 2010 at 2:49pm by alexandra*

**Physics**

A pinball machine uses a spring that is compressed 4.0 cm to launch a ball. If the spring constant is 13 N/m, what is the force on the ball at the moment the spring is released? I don't understand this I guess... Does the ball leave the spring at the equalbarium position four ...
*Saturday, May 16, 2009 at 8:40pm by HELP ME!*

**Physics**

When a 2.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.17 cm. (a) What is the force constant of the spring? N/m (b) If the 2.00-kg object is removed, how far will the spring stretch if a 1.00-kg block is hung on it...
*Wednesday, February 26, 2014 at 1:14pm by Muriel*

**physics ( please help me)**

a block with a mass of 5.00 kg is moving at 8.00 m/s^-1 along a frictionless horizonal surface toward a spring with force constant k= 500 N/m^1 that is attached to a wall.find the maximum distance the spring is compressed. the spring has negligible mass.
*Thursday, February 23, 2012 at 3:40pm by taylor*

**physics**

A(n) 96.1 g ball is dropped from a height of59.1 cm above a spring of negligible mass.The ball compresses the spring to a maximum displacement of 4.75403 cm.The acceleration of gravity is 9.8m/s^2. Calculate the spring force constant k. Answer in units of N/m
*Monday, March 18, 2013 at 5:14am by Anonymous*

**physics**

What is the restoring force of a spring stretched 0.35 meters with a spring contact of 55 newtons/meter?
*Thursday, June 21, 2012 at 10:23am by Anonymous*

**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**

A spring has a force constant of 410.0 N/m. (a) Determine the potential energy stored in the spring when the spring is stretched 4.13 cm from equilibrium. (b) Determine the potential energy stored in the spring when the spring is stretched 3.06 cm from equilibrium. (c) ...
*Saturday, January 26, 2013 at 9:27pm by Lauren Miller*

**AP PHYSICS**

A .35 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (with the spring constant (k) =455 N/m) whose other end is fixed. The mass has a kinetic energy of 10 J as it passes through its equilibrium position (the point at which ...
*Sunday, November 18, 2007 at 5:49pm by Kristen*

**phyiscs**

if 0.4 force is required to pull a body attaching to spring 0.1m from the position of equality find the spring constant?
*Friday, October 29, 2010 at 7:06am by madiha*

**phyiscs**

if 0.4 force is required to pull a body attaching to spring 0.1m from the position of equality find the spring constant?
*Friday, October 29, 2010 at 7:08am by madiha*

**physics**

a spring is fastened at one end of a force of 50n stretches the spring 20 cm find the work done
*Sunday, January 24, 2010 at 11:53am by a spring is fastened at one end of a force of 50n stretches the spring 20 cm find the work done*

**Physics**

A spring with a spring constant of 223.9 N/m is compressed by 0.220 m. Then a steel ball bearing of mass 0.0372 kg is put against the end of the spring, and the spring is released. What is the speed of the ball bearing right after it loses contact with the spring? (The ball ...
*Tuesday, September 21, 2010 at 1:14pm by Gina*

**Physics**

A spring has a force constant of 478 N/m and an unstretched length of 9 cm. one end is attached to a post that is free to rotate in the center of a smooth table. the other end is attached to a 4kg disc moving in uniform circular motion on the table, which stretches the spring ...
*Friday, November 13, 2009 at 11:38pm by bubba*

**PHYSICS!!!**

Hooke's law describes a certain light spring of unstressed length 36.0 cm. When one end is attached to the top of a door frame and a 6.40 kg object is hung from the other end, the length of the spring is 44.00 cm. (a) Find its spring constant I found the correct answer to be k...
*Tuesday, February 2, 2010 at 1:30am by Anonymous*

**algebra**

Hooke's law states that the distance an object is stretched varied directly with the force exerted on the object. Suppose the force exerted by 7-kg mass stretches a certain spring 5 cm. To the nearest 0.1 cm. how far will the spring be stretched by the force of an 11-kg mass?
*Thursday, October 18, 2012 at 4:50pm by Isaiah*

**Physics help please!!!**

A 2.10 kg frictionless block is attached to an ideal spring with force constant 315N/m . Initially the block has velocity -3.75m/s and displacement 0.270m . Find (a) the amplitude of the motion. (b) the maximum acceleration of the block. (c) the maximum force the spring exerts...
*Tuesday, March 27, 2012 at 1:29pm by john*

**Physics**

A spring has a force constant of 100N/m and an unstretched lenght of .07 m. One end is attached to a post taht is free to rotate in the center of a smooth table. The other end is attatched to a 1 kg disc moving in uniform circular motion on the table, which stretches the ...
*Monday, March 26, 2007 at 6:40pm by Tammy*

**physics**

A 250 g block is dropped onto a relaxed veritcal spring that has a spring constant of k=2.5 N/cm. The block becomes attached to the spring and compresses the spring 12 cm befor momentarily stopping. While the spring is being compressed, what work is done on the block by a) ...
*Monday, December 18, 2006 at 3:34pm by me*

**physics**

A spring is stretched 5 × 10−2 m by a force of 5 × 10−4 N. A mass of 0.01 kg is placed on the lower end of the spring. After equilibrium has been reached, the upper end of the spring is moved up and down so that the external force acting on the mass is given by F(t...
*Friday, March 9, 2012 at 4:33am by swapnali*

**physics**

How can I calculate the spring constant given only the following: equilibrium length of spring: 10.5 cm stretched length of spring (by attaching a mass): 12.5 cm object's mass: 198.9 grams -please help me...I'm really lost... You need to assume that the measurement was made at...
*Saturday, August 18, 2007 at 3:47am by :kkk:*

**Physics 2**

Conservation of momentum tells you the velocity V' of the block and embedded bullet before the spring gets compressed. 0.010 kg*300 m/s = V' * (2.01 kg) Solve for V'. Energy is conserved during spring compression. (1/2) k X^2 = (1/2) (M+m) V'^2 k is the spring force constant. ...
*Friday, January 20, 2012 at 11:38pm by drwls*

**Physics**

I am stumped on this homework problem and would like help at least to get me thinking in the right direction: It is a 2-D problem where a spring "plunger" is being used to propel a block forward. More specifically: the block rests against an ideal spring that is being held in...
*Friday, April 25, 2008 at 6:12am by Jamal*

**physics**

Imagine a spring floating in space. This spring has a very small length when it is unstretched. The spring constant for this spring is 4.2 N/m. Now place 2.6 μC charges on each end of the spring, and allow it to stretch until it reaches a new equilibrium. What is the new ...
*Monday, February 11, 2013 at 2:48pm by Noah*

**Physics**

A 1.50 kg object hangs motionless from a spring with a force constant of k = 250 N/m. How far is the spring stretched from its equilibrium length?
*Tuesday, October 5, 2010 at 5:47pm by Anonymous*

**physics**

A 0.38-kg mass attached to a spring undergoes simple harmonic motion with a period of 0.63 s. What is the force constant of the spring?
*Thursday, November 18, 2010 at 10:10pm by aok*

**Physics**

A Spring of force constant 300N/m is compressed such that its length shortens by 3cm. calculate the energy stored in the spring?. please Help
*Saturday, January 22, 2011 at 4:10am by Ochuko*

**physics**

Initially sliding with a speed of 2.3 , a 1.7 block collides with a spring and compresses it 0.26 before coming to rest.What is the force constant of the spring?
*Friday, March 25, 2011 at 3:56am by christina*

**physics**

A spring is extended 4mm by an applied force of 2.0N. a)What is its spring constant? b)How much would it extend if a load of 150g was suspended from it?
*Sunday, April 14, 2013 at 5:19pm by Tangeni.*

**physics**

A spring is extended 4mm by an applied force of 2.0N. a)What is its spring constant? b)How much would it extend if a load of 150g was suspended from it?
*Sunday, April 14, 2013 at 5:25pm by Tangeni.*

**Physics**

A 2.1 kg block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring. (a) If the block compresses the spring 5.7 cm before coming to rest, what is the force constant of the spring? (b) What initial speed should the block have to ...
*Tuesday, March 30, 2010 at 9:53pm by Carden*

**physics**

A child's toy consists of a piece of plastic attached to a spring. The spring is compressed against the floor a distance of 2.00 cm, and the toy is released. If the toy has a mass of 105 g and rises to a maximum height of 75.0 cm, estimate the force constant of the spring.
*Tuesday, January 11, 2011 at 3:25pm by julie*

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