014:
No answer possible. We don't know anything about the object.
015:
Momentum = (mass) x (speed)
Momentum of the bullet = (0.0022 kg) (54,869 m/s) = 120.7 kg-m/s .
Momentum of the ball = (0.146 kg) x (speed of the ball)
120.7 kg-m/s = (0.146 kg) x (speed of the ball)
Speed of the ball = (120.7 kg-m/s) / (0.146 kg) = 826.7 m/s
Doubtful. This speed is about 1,849 miles per hour.
016:
Kinetic energy = (1/2) (mass) (speed)²
= (1/2) (0.0022 kg) (54,869 m/s)²
= (1/2) 0.0022 kg) (3,010,607,161 m²/s²)
= 3,311,668 Joules for the bullet
017:
Kinetic energy = (1/2) (mass) (speed)²
= (1/2) (0.146 kg) (826.7 m/s)²
= (1/2) 0.146 kg) (683,432.9 m²/s²)
= 49,891 Joules for the ball