Question 3 of9 - I1 ' z 3 View Policies Current Attempt in Progress A 0.00953-kg bullet is red straight up at a falling wooden block that has a mass of 3.50 kg. The bullet has a speed of 883 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time twhen the collision with the bullet occurs. As a result ofthe collision, the block (with the bullet in it) reverses direction, rises, and comes to a momentary halt at the top of the building. Find the time t. Number l Units V Question 4 of 9 -/1 E View Policies Current Attempt in Progress The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0330 kg and is moving along the x axis with a velocity of +5.82 m/s. It makes a collision with puck B, which has a mass of 0.0660 kg and is initially at rest. The collision is not head-0n. After the collision, the two pucks y apart with the angles shown in the drawing. Find the speed of (a) puck A and (b) puck B. At rest ' HJ Before collision After collision (a) Number n Units V Number n Units V Question 7 of9 /1 E View Policies Current Attempt in Progress A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is elastic. The masses of the ball and block are, respectively, 1.6 kg and 2.3 kg, and the length of the wire is 1.12 m. Find the velocity (magnitude and direction) of the ball (a)just before the collision, and (b) just after the collision. (a) v= v I (b)v= v l V Question 8 of 9 - /1 E View Policies Current Attempt in Progress Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.57x1011 m apart. The larger of the two stars has a mass of 4.12fo030 kg, and its center is 1.90x1011 m from the system's center of mass. What is the mass of the smaller star? n V Question 9 of 9