How long will it take to travel 200,000 m traveling 100 m/s?

Two identical brass balls mounted on a wooden posts initially have different amounts of charge, one + 3.9 uC and the other + 16.4 uC. The balls are allowed to touch and then separated again. What is the final charge on each ball?

A 60 kg rower is paddling a 30 kg canoe with a 2 kg paddle at a constant speed of + 10 m/s. If she loses her grip on the paddle and it flies backward with a velocity of - 20 m/s, what is the final momentum of the boat and rower?

A driver of a car hits its brakes and begins to decelerate. If the velocity changes from 60 m / s to 20/m in 6 s, what is the deceleration of the car?

Three moles of an ideal gas undergo a reversible isothermal compression at 22.0°C. During this compression, 1700 J of work is done on the gas. What is the change in entropy of the gas? (J/K)

what is the force of static friction on Earth between a 2000 kg car and the road if a coefficient of static friction is 0.4?

A book falls of the table and hits the floor. Is work done? Why?

A person of 83 kg is in an elevator. If the elevator is moving at a speed of 5 m/s, what's the person's kinetic energy? Keep 4 significant figures a 1,004 J b 1,038 c 1,280 J d 980 J e 1,435 J

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp