In the ballistic pendulum shown below, the block has a mass of 2.1 kg, the bullet has a mass of 0.0067 kg, and the string has a length of 2.21 m. A bullet is shot directly at the block, lodging into the block, and causing the pendulum to swing forward 21°. 0

A sonar transmitter operates at 2 impulses per second. If the device is held to the surface of fresh water (Assume EB = 2.038 x10 ^9 Pa) and the echo is received midway between impulses, solve the height of the water in m. Round your answer to 2 decimal places.

One billiard ball (mass 118 grams) is moving due east at 5.0 m/s. A tennis ball (mass 321 grams) is moving due west at 4.0 m/s. The two balls have a glancing blow, which means they do not bounce along the same line as their original motion, but rather, deflect at an angle to their original paths. You measure the billard ball's motion as it moves 26.0° north of east, and you measure that the tennis ball is travelling 19.0° south of west. What is the speed of the billiard ball after the collision? Your Answer: Answer

a) A bullet of mass 0.100 kg travels with a speed of 70.0 m/s. It impacts a block of mass 0.950 kg which is connected to the end of a spring of stiffness 90.00 N/m. The bullet remains in the block after the collision. lellellll To what maximum distance does the spring compress from its equilibrium position?

A block with mass m 1 =1 kg is released from rest on a frictionless track at a distance h1=2.5 m above the top of a table . it then collides elasticly with a block having same mass m2=1Kg that is at rest on the table. (a) What is the velocity of mass m1 just before collision? (b) What is the velocity of mass 2 just after collision?

For a ballistic pendulum, if the length L = 1.64 meter, angle of deflection from vertical θ = 20.8 degree, the mass of the bullet m = 12.1 gram, and the mass of the catcher M = 646 gram, the velocity (m/s) of the bullet is

A 18.3kg object, initially at rest, explodes into 3 pieces! After the explosion, Piece A (3.3kg) is moving 6m/s at an angle 64° North of East. Piece B (7.6kg) is moving 3.4m/s at an angle 76° South of West. The third piece, Piece C, is not shown after the explosion. Object (initial) Piece A (final) Piece B (final) Piece C (final) |p|x unit What is the mass of Piece C? unit v How fast did Piece C move after the explosion? unit What direction did Piece C move after the explosion? Iply unit before after B A W+ N ·50 S E

A baseball of mass m1 = 0.34 kg is thrown at a concrete block m2 = 7.5 kg. The block has a coefficient of static friction of μs = 0.76 between it and the floor. The ball is in contact with the block for t = 0.105 s while it collides elastically. The force of interaction between the block and the ball is constant for the duration of their collision. Randomized Variables m1 = 0.34 kgm2 = 7.5 kgμs = 0.76t = 0.105 s a.  Write an expression for the minimum velocity the ball must have, vmin, to make the block move.  b. What is the velocity in m/s?

A steel ball of mass 0.600 kg is fastened to a cord that is 80.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. At the bottom of its path, the ball strikes a 3.00 kg steel block initially at rest on a frictionless surface. The collision is elastic. (a) Find the speed of the ball just after collision. (No Response) m/s (b) Find the speed of the block just after collision. (No Response) m/s

You fire an old rifle at a block of wood. The mass of the block of wood is 231 g and it dimensions are 10.2 cm × 10.2 cm × 3.16 cm. The bullet has a mass of 24.6 grams. Assume no air resistance and that the collision is perfectly inelastic. The velocity of the bullet is 22: m/s right before it hits the block. Assume no mass is lost when the two objects collide. 10.2 cm 1. The distance the bullet hits from the center of mass is 3.4 cm COM. How high up does the block travel? cm 2. What is the rotation rate (rev/s) of the block & bullet system directly after impact? 3.16