A golf ball is thrown upward with a velocity of 3.87 m/s, the golf ball hits the surface of earth with a velocity of -22.35 m/s, how long was the ball in the air?

Which statement best explains why an object weight less on mercury than it does on earth

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?