Search: bullet

Number of results: 1,120

physics
A bullet of mass 10.8 g leaves a gun barrel with a velocity of 511 m/s. What is the bullet's kinetic energy?
Monday, March 7, 2011 at 4:49pm by cale

physics
which will be more effective in knocking a bear down (a)A RUBER BULLET OR (b)a lead bullet of the same momentum.
Wednesday, June 18, 2008 at 12:08pm by aman

Physics
A bullet with mass 4.91 g is fired horizontally into a 1.981-kg block attached to a horizontal spring. The spring has a constant 6.25 102 N/m and reaches a maximum compression of 6.38 cm. a) find the initial speed of the bullet-block system. b) find the speed of the bullet
Wednesday, June 1, 2011 at 7:48pm by kate

Physics
A bullet of mass 4.8 g strikes a ballistic pendulum of mass 3.3 kg. The center of mass of the pendulum rises a vertical distance of 9.7 cm. Assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed. ....I'm getting an answer of ...
Monday, October 31, 2011 at 9:32am by Ellie

Physics
An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a table of 1.00 m height (Fig. P6.26). The bullet remains in the block, and after the impact the block lands 2.00 m from the bottom of the table. Determine the initial speed of the bullet.
Sunday, November 21, 2010 at 9:06pm by having trouble

Physics
A horizontal rifle is fired at a target 47 m away. The bullet falls vertically a distance of 8 cm on the way to the target. (a) What is the speed of the bullet just after it left the rifle? (b) What is the speed of the bullet just before it hits the target?
Wednesday, May 16, 2012 at 11:41pm by Alex

Bobpursely
Use conservation of momentum to get the initial velocity of the block with imbedded bullet. Then set the initial kinetic energy of block & bullet equal to the work done against friction, and solve for trhe sliding distance. Check to make sure the bullet weight is really 5 ...
Thursday, January 27, 2011 at 7:34pm by drwls

physics
The spring's potential energy at maximum compression (when X is the amplitude of viration) equals the initial kinetic energy at zero deflection, after the bullet hits. Use that fact to get the initial velocity of the vibrating Bullet-Block combo. Then use conservation of ...
Tuesday, April 13, 2010 at 12:12pm by drwls

AP Physics
A uniform thin rod of length 0.3m and mass 3.5kg can rotate in a horizontal plane about a vertical axis through its center. The rod is at rest when a 3g bullet traveling in the horizontal plane of the rod is fired into one end of the rod. As viewed from above, the direction of...
Friday, February 8, 2008 at 6:10pm by Darlene

physics
work done by block/bullet= totalmass*g*mu*distance from that, compute the initial velocity of the block/bullet system (workdone=1/2 mv^2) Now, knowing that velocity, use the conservation of momentum to find the initial velocity of the bullet massbullet*vbullet= totalmass*...
Tuesday, November 8, 2011 at 1:12pm by bobpursley

physics
F*x = 1/2*m*v^2 where F is the average force, x is the distance over which the bullet is accelerated, v is the speed, m is the mass of the bullet F*0.432 = 1/2*22*907^2
Friday, December 14, 2012 at 8:58pm by Jennifer

Physics
An 8g bullet leaves a gun at 700ms-1. (a) what is the maximum height that this bullet could reach (ignoring air resistance)
Friday, September 21, 2012 at 8:28pm by Ellie

Physics
An 8g bullet leaves a gun at 700ms-1. (a) what is the maximum height that this bullet could reach (ignoring air resistance)
Friday, September 21, 2012 at 8:26pm by Ellie

Physics
A wooden boxcar is moving along a straight railroad track at speed v1. A sniper fires a bullet (initial speed v2) at it from a high-powered rifle. The bullet passes though both lengthwise walls of the car, its entrance and exit holes being exactly opposite each as viewed from...
Saturday, September 18, 2010 at 7:11pm by J

Physics
A bullet of mass 0.06kg is fired horizontally with a muzzle speed of 700 m/s into a pendulums hanging block of mass 2.0kg. The block and the bullet then move up a height, h, above the pendulums equilibrium position. What is the speed of the bullet/block combination after the ...
Thursday, March 15, 2012 at 4:31pm by Erin

Physics
A ballistic pendulum was a device used in the past century to measure the speed of bullets. The pendulum consists of a large block of wood suspended from long wires. Initially, the pendulum is at rest. The bullet strikes the block horizontally and remains stuck in it. The ...
Friday, October 26, 2012 at 2:35pm by Jeff

physics
A ballistic pendulum, as shown in the figure, was a device used in the past century to measure the speed of bullets. The pendulum consists of a large block of wood suspended from long wires. Initially, the pendulum is at rest. The bullet strikes the block horizontally and ...
Tuesday, March 4, 2008 at 11:59am by shelby

Physics
In a target shooting game, wooden blocks are thrown into the air and shot in flight. A block of 0.8kg has a speed of 10 m/s at the top of its trajectory when it is hit by a bullet from below at an angel 60° from horizontal. The mass of the bullet is 5.0 g and its speed is ...
Monday, March 4, 2013 at 7:26pm by Mike

physic =)
A bullet is fired directly upward from a rifle at ground level. Assuming a velocity muzzle of 490 m/s, and neglecting air resistance, find: A.height of the highest point reached. B.time required to reach this point. C.total time before the bullet returns to the ground. D.speed...
Sunday, January 6, 2013 at 7:05am by carol

Physics
a) By "initial speed", they really mean "right after the bullet hits the block and gets embedded". Call that speed v. The bullet-block speed is zero before that. Assume energy is conserved during spring compression. (1/2)(M+m) v^2 = (1/2)k*X^2 v = sqrt [k/(...
Wednesday, June 1, 2011 at 7:48pm by drwls

physics
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 bullet remains inside the block after impact. The force of the impact compresses the spring 10 cm. What is the velocity of the bullet?
Sunday, December 2, 2012 at 3:49pm by Jd

physics
A bullet of mass 10.8 g leaves a gun barrel with a velocity of 511 m/s. What is the bullet's kinetic energy? answer in joules
Monday, March 7, 2011 at 4:50pm by mat

physics
mass of block with bullet = 2+.020 =2.02 kg weight of block with bullet = 2.02*9.81 = 19.8 N friction force = 19.8*.2 = 3.96 N work done by friction = 3.96 * .40 = 1.59 J that is kinetic energy of block with bullet 1.59 = (1/2)(2.02) v^2 v = 1.25 m/s for block with bullet now ...
Monday, July 23, 2012 at 12:55pm by Damon

phycis
a bullet of mass 0.01kg is fired into a sandbag of mass 0.49kg handing from atree.the sandbag with the bullet embedded into it swing away at 10m/s find: a.the momentum after collision b.the momentum before the collision c.the velocity of the bullet
Friday, February 15, 2013 at 4:43am by najma

Physics
A hunter aims directly at a target (on the same level) 125m away. If the bullet leaves the gun at a speed of 227 m/s, by how much will it miss the target? I'm not sure how to approach this problem. I know I need to find the horizontal distance traveled, probably by finding...
Thursday, June 3, 2010 at 6:42pm by Jeff

AP Physics
A bullet of mass 0.0022 kg moving at 568 m/s impacts a large ﬁxed block of wood and travels 5.2 cm before coming to rest. Assuming that the deceleration of the bullet is constant, ﬁnd the force exerted by the wood on the bullet. Answer in units of kN ...
Tuesday, October 2, 2012 at 8:32pm by Noah

physics
A 3.00x10^-3 kg lead bullet enters a target with a speed of 2.00x10^2 m/s and comes to rest within the target. Calculate the rise in temperature of the bullet assuming that 80.0% of the heat produced is absorbed by the bullet. The Specific heat of lead is 1.30x10^2 J/kg K
Sunday, March 25, 2012 at 3:00pm by Elizabeth

Physics
A 15 g lead bullet is tested by firing it into a fixed block of wood with a mass of 1.05 kg. The block and the embedded bullet together absorb all the heat generated. After thermal equilibrium has been reached, the system has a change in temperature measured as 0.020 oC. ...
Monday, September 20, 2010 at 9:31am by Eric

Physics
A 10 kilogram block initially hangs at rest at the end of two 10 meter strings of negligible mass as shown on the left diagram above. A 0.009 kilogram bullet, moving horizontally with a speed of 1600 meters per second, strikes the block and becomes embedded in it. After the ...
Sunday, November 27, 2011 at 9:45pm by jill

Physics
A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
Monday, November 5, 2012 at 2:24am by greg

phisics
A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
Sunday, November 4, 2012 at 9:46pm by greg

physics
A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
Friday, November 4, 2011 at 4:15pm by Meagan

physics
A 4.63-g bullet is moving horizontally with a velocity of +349 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
Sunday, October 16, 2011 at 9:33pm by riley

Physics
from the final height, the PE gained was (m+M)gh (m is the bullet mass). So the initial velocity of the bullet/block must be 1/2 (m+M)v^2=(m+M)gh or V=sqrt(2gh) Now the law of momentum conservation holds when the bullet hits the block (m+M)V=mVi (m+M)sqrt(2gh)=mVi and solve ...
Friday, August 5, 2011 at 2:19pm by bobpursley

physics
a 2 kilogram rifle initially at rest fires a 0.002 kilogram bullet. as the bullet leaves the rifle with a velocity of 500 meters per second, what is the momentum of the rifle bullet system? isn't the answer one because final momentum minus initial momentum is 1-0 which is one
Thursday, January 6, 2011 at 8:43pm by john

physics
here is my question: A bullet with a mass of 6.00 g is fired through a 1.25 kg block of wood on a frictionless surface. The initial speed of the bullet is 896 m/s, and the speed of the bullet after it exits the block is 435 m/s. At what speed does the block move after the ...
Wednesday, March 11, 2009 at 6:38pm by physics

physics
A bullet is shot straight upwards .It takes 18 seconds to reach the highest point in its trajectory.what was bullet maximum speed?
Thursday, March 3, 2011 at 11:44am by sweety

Collisions
Suppose a bullet of mass m = 6.96 g is fired into a ballistic pendulum whose bob has a mass of M = 0.677 kg. (a) If the bob rises to a height of 0.141 m, what was the initial speed of the bullet? I got .042 km/s; but its wrong. (b) What was the speed of the bullet-bob ...
Thursday, April 29, 2010 at 7:03pm by Robert

Science
A lead bullet with a mass of 8.50 g traveling at 4.80 x 102 m/s strikes a 2.00 kg block of wood and is embedded in it. Both the bullet and the block are initially at 25.0°C. Assume that no heat is lost to the surroundings and that all the kinetic energy of the bullet is ...
Tuesday, December 6, 2011 at 9:40pm by Michael

Physics
A bullet moving at a speed of 154 m/s passes through a plank of wood. After passing through the plank, its speed is 149 m/s. Another bullet, of the same mass and size but moving at 91 m/s, passes through an identical plank. What will this second bullet's speed be after ...
Wednesday, January 23, 2013 at 7:30pm by Andrew

Physics
Situation: While holding his rifle at shoulder-level, a 1.8 meter tall hunter accidentally discharges it straight up into the air. Questions: 1) If the bullet exits the barrel of the rifel at 200 meters per second squared, how many seconds does the hunter have to "step ...
Monday, February 11, 2013 at 5:05pm by Krishen

Transistion to College Math
A rifle bullet is fired vertically with initial speed 490 m/s. how long does it take the bullet to reach its greatest height?
Wednesday, March 28, 2012 at 2:27am by Mike

Physics
well, exactly opposite.That means the time the bullet went across the car, the train advanced the same distance as the angle of the bullet would have advanced. Assume Theta is the angle the bullet entered. Hmmmm. to figure the time the bullet took to cross the car, one needs ...
Saturday, September 18, 2010 at 7:11pm by bobpursley

physics
A bullet is fired from a rifle that is held 4.6 m above the ground in a horizontal position. The initial speed of the bullet is 1130 m/s. There is no error in the velocity value. (a) Find the time it takes for the bullet to strike the ground. (b) Find the horizontal distance ...
Tuesday, September 18, 2012 at 7:06pm by Taylor

math
Math question. Two part. A am rifle bullet accelerates from 0 to 1000 m/s ( about 2240 MPH) in 1/1000 second when fired. What is the avg acceleration of the bullet in m/s2? If this rate of acceleration could be somehow maintained, how long would it take for the bullet to reach...
Sunday, February 12, 2012 at 8:15pm by bubba

Physics help please
A 13.2 gm bullet is fired into a 12.0 kg wood block that is at rest on a wood table. The block, with the embedded bullet, slides 5.00 cm across the table. Assuming that the local acceleration due to gravity is 9.80m/s2 and that the coefficient of kinetic friction between the ...
Wednesday, October 26, 2011 at 11:09pm by Iamdumb

Physics
Hello im kinda new here and hoping someone can help me with this energy conservation question (I believe). A 2.10g- bullet embeds itself in a 1.30kg - block, which is attached to a spring of force constant 770 N/m . 1) If the maximum compression of the spring is 5.60 cm , find...
Thursday, November 19, 2009 at 11:22am by Charles

Physics
When a gun (3 kg) shoots a bullet (.025 kg), the bullet goes forward and the gun recoils backward. Which of the following statements is true? Select one: a. The force pushing the gun backwards is smaller than the force pushing the bullet forward. b. Both objects accelerate at ...
Monday, November 19, 2012 at 10:23pm by Cameron

physics
An 10g bullet leaves a gun at 800 m/s. What is the maximum distance that the bullet could reach? What is the height it reaches when the angle above the horizontal is 45 degrees
Tuesday, September 25, 2012 at 1:16am by Anonymous

phys
A 30.0-g lead bullet leaves a rifle at a temperature of 89.0° C and hits a steel plate. If the bullet melts, what is the minimum speed it must have?
Thursday, April 26, 2012 at 12:29am by opp

medical office administration
A man is shot in the head, and the bullet stops just outside the dura mater.what is the innermost layer that the bullet has penetrated
Wednesday, February 3, 2010 at 2:31pm by Peggy miller

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
The barrel of a rifle has a length of 0.916m. A bullet leaves the muzzle of a rifle with a speed of 621m/s. What is the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have a constant acceleration, but constant acceleration is to be assumed ...
Friday, September 14, 2012 at 10:59pm by sam

physics
A 4.7 g bullet is fired horizontally into a 0.50 kg block of wood resting on a frictionless table. The block, which is attached to a horizontal spring, retains the bullet and moves forward, compressing the spring. The block-spring system goes into SHM with a frequency of 8.0 ...
Thursday, June 28, 2012 at 12:10am by Tom

physics
From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. The bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.42 m, and x = 7.2 m.)Determine the distances D and H...
Thursday, October 21, 2010 at 7:35pm by Anonymous

Physics
From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. The bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.42 m, and x = 7.2 m.)Determine the distances D and H...
Wednesday, October 20, 2010 at 9:19pm by Anonymous

math
area of 5mm square: 25mm^2 cross-section of 2mm bullet = 3.14mm^2 portion of square occupied by bullet: 3.14/25 = 0.126 So, there's a 1-.126 = .874 chance the bullet will not hit the wires. Actually, the dimensions need to be adjusted slightly to account for the space ...
Wednesday, February 1, 2012 at 7:07pm by Steve

Physics
A 7.80-g bullet moving at 530 m/s penetrates a tree trunk to a depth of 6.2 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. (b) Assuming the friction force is constant, determine how much time elapses between the moment ...
Tuesday, May 3, 2011 at 4:56pm by Dani

physics
A 20 g bullet moving horizontally with a speed v hits a 2-kg block of wood resting on a table. After hitting the block the bullet is embedded in the block of wood and the block and the bullet moves a distance of 40 cm before it stops. If the coefficient of friction between the...
Monday, July 23, 2012 at 12:55pm by Edward

physics
An 6.00 g bullet is fired into a 2.30 kg block initially at rest at the edge of a frictionless table of height 1.00 m. The bullet remains in the block, and after impact the block lands 2.00 m from the bottom of the table. Determine the initial speed of the bullet. I know that ...
Tuesday, March 24, 2009 at 12:36pm by Jessi

Math
A block of wood (who is suspended by a rope) with a mass of 2Kg moves 10cm from its original position after being struck by a 12g bullet, what's the velocity of the bullet?
Thursday, April 2, 2009 at 8:42pm by Michel

physics
A 9.90-g bullet has a speed of 1.33 km/s. (a) What is its kinetic energy in joules? (b) What is the bullet's kinetic energy if its speed is halved? (c) What is the bullet's kinetic energy if its speed is doubled?
Thursday, November 10, 2011 at 7:22pm by Jonathan

physics
A bullet of mass 11.2 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.01 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4....
Monday, April 30, 2012 at 9:12pm by Anonymous

physics
A bullet of mass 12.4 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.02 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4....
Thursday, March 29, 2012 at 5:57pm by Sarah

physics. need help fast
LOL had the same question as you, this is the help I got: Use conservation of momentum to get the initial velocity of the block with imbedded bullet. Then set the initial kinetic energy of block & bullet equal to the work done against friction, and solve for trhe sliding ...
Thursday, January 27, 2011 at 7:50pm by Anonymous

Physics
A 4.5 g bullet is stopped in a block of wood (m= 5.04 kg). The speed of the bullet-plus-wood combination immediately after the collision is 0.298 m/s. What is the original speed of the bullet? Answer in m/s. I did it like this and got it wrong: mv=MV .298= (.0045kg)(velocity) ...
Sunday, March 2, 2008 at 5:49pm by Marcy

physicss
A 0.005kg bullet is fired at 400m/s straight into a stationary 1.0kg block of wood. The bullet exits the far side of the block and continues on the same straight line. The block also moves off in this same direction with a velocity of 1.2m/s. Calculate the velocity of the ...
Tuesday, October 2, 2012 at 11:52pm by taryn

physics
A 0.005kg bullet is fired at 400m/s straight into a stationary 1.0kg block of wood. The bullet exits the far side of the block and continues on the same straight line. The block also moves off in this same direction with a velocity of 1.2m/s. Calculate the velocity of the ...
Tuesday, October 2, 2012 at 5:30pm by taryn

physics
A .22 rifle bullet traveling at 360m/s strikes a block of wood, which penetrates to a depth of .110m. The mass of the bullet is 1.80g. Assume a constant retarding force.A) how much time is required for the bullet to stop? b) what force in newtons soes the wood exert on the ...
Thursday, November 16, 2006 at 2:39pm by Chris

Chemistry
A 0.22-caliber handgun fires a 27-g bullet at a velocity of 765 m/s. Calculate the de Broglie wavelength of the bullet. Is the wave nature of matter significant for bullets?
Wednesday, March 28, 2012 at 12:40am by danielle

College Physics
A 8.2 gram lead bullet that was stopped in a doorframe apparently melted completely on impact. Assuming the bullet was fired at room temp., what is the minimum muzzle velocity of the gun?
Thursday, May 6, 2010 at 12:36am by H

Physics
Answer in m/s. The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 88 cm apart on the same axle. From the angular displacement 18.4 degrees of the two bullet holes in the disks and the rotational ...
Wednesday, April 15, 2009 at 8:57pm by Amanda

Physics
A rifle with a mass of 1.2 kg fires a bullet with a mass of 6.0 (0.006kg). The bullet moves with a muzzle velocity of 600 m/s after the rifle is fired. a. What is the momentum of the bullet after the rifle is fired? b. If external forces acting on the rifle can be ignored, ...
Sunday, March 25, 2012 at 5:37pm by Jeremiah

physics
An 8.0 g bullet is fired horizontally into a 9 kg block of wood and sticks in it.The block,which is free to move,has a velocity of 40cm/s after impact.Find the initial velocity of a bullet. You know the momentum (total mass) of the bullet/block combo after the collision, and ...
Saturday, September 23, 2006 at 2:41am by fluffy

Physics (High School)
A 7.24 g bullet moving at 636 m/s penetrates a tree to a depth of 4.87 cm. Use energy considerations to find the average frictional force that stops the bullet. Answer in units of N B) Assuming that the frictional force is constant how much time elapsed between the moment of ...
Monday, December 19, 2011 at 11:14am by Ama

PHYSICS
A bullet is fired horizonatally at a target 100 m away and hits 0.5 m below the target. what is the velocity of the bullet?
Monday, November 1, 2010 at 7:26pm by Cas

physics
A 2.40- bullet embeds itself in a 1.20- block, which is attached to a spring of force constant 770 .
Thursday, December 1, 2011 at 7:34pm by bullet and block

Physics
A gun fires a bullet. When will the muzzle velocity of the bullet be equal to the recoil speed of the gun?
Tuesday, November 15, 2011 at 8:33pm by Shari

College Physics
A 1.75-kg wooden block rests on a table over a large hole as in the figure below. A 4.60-g bullet with an initial velocity vi is fired upward into the bottom of the block and remains in the block after the collision. The block and bullet rise to a maximum height of 24.0 cm. ...
Monday, March 26, 2012 at 12:57pm by Anonymous

physics
A 7.80-g bullet moving at 520 m/s penetrates a tree trunk to a depth of 4.60 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. N (b) Assuming the frictional force is constant, determine how much time elapses between the ...
Wednesday, October 10, 2012 at 11:24pm by monic

Physics - Projectile Motion
"A person fires a bullet horizontally from a gun at the same instant that another bullet is dropped from the same height as the rifle barrel. Discuss which bullet will hit the ground first." I'm thinking that the bullet that is dropped will hit first, because it ...
Wednesday, July 7, 2010 at 4:30pm by Stuck

physics
if the forces that act on a bullet and on the recoiling gun from which it is fired are equal in magnitude, why do the bullet and gun have very different accerlerations
Monday, October 31, 2011 at 6:14pm by Anonymous

physics
How long does it take for the bullet to go 120 meters? How much does the bullet fall in that time? b) tanTheta=falling distance/120
Saturday, August 1, 2009 at 9:56am by bobpursley

physics
If the block moves 5.50 cm, the kinetic energy of the block, after the bullet passes through, is K.E. = (1/2) k X^2 = 430*(0.055)^2 = 1.30 J = (1/2) M V^2 If M and V are the block's mass and velocity, M V = sqrt (2*M*K.E.) = 1.14 kg m/s That equals the momentum lost by the...
Monday, March 23, 2009 at 10:19pm by drwls

mechanics - physics
Force * distance = Work done by bullet = Initial kinetic energy of the bullet Solve for the force F = M*V^2/(2*X) = 3*10^-3*(500)^2/(2*0.2) Newtons = 1875 N
Saturday, January 5, 2013 at 5:47am by drwls

Physics
A bullet is fired horizontally from a height of 78.4m and hits the ground 2400 m away. With what velocity does the bullet leave the ground?
Sunday, October 24, 2010 at 7:24pm by Steve smith

Report
How did gangsters like Bonnie and Clyde and Al Capone escape from the police before bullet proofing their cars? And how did the bullet proof cars help them?
Sunday, April 27, 2008 at 7:08pm by Jennifer

Physics Angular Momentum
Initial angular momentum of bullet around axis of wheel = I w = m r^2 w = m r v = .00483 * .148 * 330 = .2359 Final angular momentum of bullet around axis of wheel = .00483 * .148 * 201 = .1437 change in angular momentum of bullet = .2359 - .1437 = .0922 that is the angular ...
Monday, July 11, 2011 at 6:46pm by Damon

physics
A lead bullet with a mass of 0.05 kg traveling at 188 m/s strikes an armor plate and comes to a stop. If all the energy is converted to heat and absorbed by the bullet, what is the temperature change?
Friday, September 7, 2012 at 11:05am by Anonymous

science
a bullet being shot? Or a bullet hitting a steel plate and ricocheting backwards? Or and electron gun shooing electrons to the screen? I think I would compute the acceleration on those, and compare.
Tuesday, November 2, 2010 at 12:58pm by bobpursley

Physics
A rifle has a mass of 4.73 kg and it fires a bullet of mass 13.6 g at a muzzle speed of 829 m/s. What is the recoil speed of the rifle as the bullet leaves the gun barrel? So far, I've got (using p for momentum) p=p, so massXchange in velocity of the bullet will will equal...
Friday, February 5, 2010 at 6:58pm by June

AP Physics
Use the law of conservation of angular momentum, measured about the vertical axis. Initially, the rod has no angular momentum but the bullet has angular momentum m V (L/2) cos 60 about that axis. Afterwards, the rod with embedded bullet has moment of inertia I = (1/12)ML^2 + m...
Friday, February 8, 2008 at 6:10pm by drwls

physics
A bullet of mass m = 5.89 g is fired into a block of mass M = 3.09 kg that is initially at rest on the edge of a smooth table. (The table top is 0.83 m above the floor.) The bullet ends up stuck in the block, and together they fly off the table and fall to the floor. If the ...
Sunday, April 8, 2012 at 2:49pm by Marc

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