An 8.8 g bullet has a speed of 875 m/s. (a) What is its kinetic energy...
A 9.00 g bullet has a speed of 1.40 km/s . a. What is its kinetic energy in joules? b. What is the bullet's kinetic energy if its speed is halved? c If its speed is doubled?
A 0.49-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 7.7 J at point B. (a) What is its kinetic energy at A? J (b) What is its speed at point B? m/s (c) What is the total work done on the particle as it moves from A to B? J
Constants IP A bullet with a mass of 4.0 g and a speed of 650 m/s is fired at a block of wood with a mass of 9.8×10−2 kg . The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 21 m/s A. What is the speed of the bullet when it exits the block? B. Calculate the initial...
A bullet with a mass of 4.1 g and a speed of 650 m/s is fired at a block of wood with a mass of 9.6x10-2 kg. The block rests on a frictionless surface and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 21 m/s. a. What is the speed of the bullet when it exits the block? b. Is the final kinetic energy of...
11. An object has kinetic energy of 196 J. If its speed is 7 m/s, what is its mass? A) 8 B) 56 C) 21.16601 D) 4.8
A 8 g bullet has a speed of 330 m/s and embeds itself into a 650 g block. The block is initially at rest sitting on a rough surface which has a coefficient of kinetic friction equal to 0.4. A) What is the speed of the block after the collision? B) What fraction of the initial kinetic energy of the bullet remains after the collision? C) How far does the block slide after the collision before coming to rest? D)...
A 0.500-kg particle has a speed of 1.50 m/s at point and kinetic energy of 7.70 J at point B (a) What is its kinetic energy at (b) What is its speed at m/s (c) What is the net work done on the particle by external forces as it moves from to
A 10.0 g rifle bullet is fired with a speed of 370 m/s into a ballistic pendulum with mass 7.00 kg , suspended from a cord 70.0 cm long. A) Compute the initial kinetic energy of the bullet; B) Compute the kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum. C) Compute the vertical height through which the pendulum rises.
refer to picture. A 10.0 g bullet is shot straight up and has initial kinetic energy of 2.50 kJ. The speed of the bullet when it is halfway to maximum height is equal to a. 250 m/s 354 m/s 500 m/s 707 m/s 1,000 m/s re constant of 2.990 N/m. The work done in stretching the spring
If a bullet with a mass of 4.2 g and a speed of 650 m/s is fired at a block of wood with a mass of 9.8×10−2 kg . The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the block is 21 m/s . A) What is the speed of the bullet when it exits the block? B) Verify Kf<Ki calculating...