A 0.060 kg ball hits the ground with a speed of - 32 m/s. The ball is in contact with the ground for 45 milliseconds and the ground exerts a + 55 N force on the ball. What is the magnitude of the velocity after it hits the ground?

Which statement relates most directly to the second law? 1 - Thermal energy is conserved. 2 - Some thermal energy is lost and some is used to do work. 3 - Thermal energy flows from areas of higher to lower temperatures.

A proton moving at 8.00 106 m/s through a magnetic field of magnitude 1.72 T experiences a magnetic force of magnitude 7.20 10-13 N. What is the angle between the proton's velocity and the field? (Enter both possible answers from smallest to largest.

What causes the force that moves a boat forward when someone rows it? a. the force is caused by the rower's arms. b. the force is caused by an interaction between the oars and gravity. c.

If you were to look at a t-shirt that absorbed the colors violet, blue, green, yellow, and orange, what color would the t-shirt appear to be?

Convert 110mi/h=mi/day

The earthquake killed about 60 people and was the strongest earthquake to hit

A sailor drops a wrench from the top of a sailboat's vertical mast while the boat is moving rapidly and steadily straight forward.

An eagle carries a fish up 50 m into the sky using 90 n of force. how much work did the eagle do on the fish

Consider a steel guitar string of initial length l=1.00m and cross-sectional area a=0.500mm2. the young's modulus of the steel is y=2.0*1011n/m2.

What is the most advanced life form on earth