Two cars approach an extremely icy four-way perpendicular intersection. Car A travels northward at 34 m/s and car B is traveling eastward. They collide and stick together, sliding at 22° north of east. What was the initial velocity of car B? You may assume that the cars have the same mass. UB m/s Question Help: Read Submit Question Hint 1

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A 3.4 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 480 m/s, goes completely through the block, emerging at a speed of 250 m/s. Part A What is the speed of the block immediately after the bullet exits? Express your answer with the appropriate units. V= Value Submit μA Provide Feedback Request Answer Units ? 208

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A 5.75 x 10°-kg rocket takes off from the moon where the acceleration due to gravity is 1.60 m/s2 by exhausting 5.00 kg of gas per second at a speed of 2.20 x 10° m/s. Determine the acceleration of the rocket. m/s2 Additional Materials

= A small block of mass m. = 0.540 kg is released from rest at the top of a frictionless, curve-shaped wedge of mass m₂ 3.00 kg, which sits on a frictionless, horizontal surface as shown in Figure a. When the block leaves the wedge, its velocity is measured to be v₁ = 3.00 m/s to the right as shown in Figure b. m1 mi m2 ml? b (a) What is the velocity of the wedge after the block reaches the horizontal surface? m/s to the left (b) What is the height h of the wedge? m

Alice has a mass of 62.0 kg and Bob has a mass of 84.0 kg and they are initially standing at rest with respect to one another on a frictionless surface. They push against each other such that Alice moves at 0.04 m/s relative to her starting point. With what speed does Bob move away from his initial position? a. 0.03 m/s b. 0.09 m/s c. 1.21 m/s d. 32.2 m/s e. 1.6 m/s

A ball of mass 0.305 kg that is moving with a speed of 5.8 m/s collides head-on and elastically with another ball initially at rest. Immediately after the collision, the incoming ball bounces backward with a speed of 3.2 m/s. ▼ Part A Calculate the velocity of the target ball after the collision. Express your answer to two significant figures and include the appropriate units. = μᾶ Part B Value Units Submit Request Answer ? Calculate the mass of the target ball. Express your answer to two significant figures and include the appropriate units.

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The figure below shows a bullet of mass 230g traveling horizontally towards the east with a speed of 415m/s, which strikes a block of mass 7.5kg that is initially at rest on a frictionless table. After striking the block, the bullet is embedded in the block and they begin to move as one unit.  A. What is the magnitude (in m/s) and direction of the velocity of the block/bullet unit immediately after the impact? B. What is the magnitude (in N * s) and direction of the of the impulse of the block on the bullet?  C. What is the magnitude ( in N *s) and direction of the impulse of the bullet and the block?