The train traveled 500 kilometers north to Odessa in 2 hours. What is the train's speed? What is it's velocity?

Today's computers use millions of transistors. What is one reason they are used? A. Transistors store information. B. Transistors burn out quickly, so many replacements are necessary. C.

Which of the following statements about scientific models is accurate? A. They are always more complex than the object, process, or system they represent. B. They are always more simpler than the object, process, or system they represent. C.

A 0.5 kg air-hockey puck is initially at rest. What will its kinetic energy be after a net force of 0.4 N acts on it for a distance of 0.7 m?

A 22.6-kg box is being pushed from the bottom to the top of a frictionless ramp. When the box is pushed at a constant velocity, the nonconservative pushing force does 58.0 J of work.

What is the first sign of dehydration?

A farmer had 15 sheep, and all but 8 died. How many are left?

While playing with her 5 year old cousin, a Physics 135 student pushed him forward on his scooter. She pushes with a force of 50 Newtons for 3.5 seconds. If the boy and the scooter together have a mass of 30 kg, what is their final velocity? a. 2.

3. A 120.0 V generator supplies 3.0 kw of power. How much current ca the generator deliver?

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Sound travels slow in cold air. Why does the speed of sound depend on air temperature?