How much work does the up escalator do on you when you ride it from the lower level to the upper level?

What is the source of the energy released in fission and fusion reactions?

A plumber is trying to fix a clog in a vertical pipe, but does not know how far down in the pipe the clog and the water level is.

Two steamrollers begin 105 m apart and head toward each other, each at a constant speed of 1.30 m/s. At the same instant, a fly that travels at a constant speed of 2.

A squirrel runs at a steady rate of 0.51 m/s in a circular path around a tree. If the squirrel's centripetal acceleration is 0.43 m/s2, what is the radius of the circle? 0.60 m 1.2 m 0.36 m 0.84 m

X-rays UV light waves Sound waves Earthquake waves. All of these have which characteristic in common?

A body is moving with a velocity of 12m/s and it comes to rest in 2 minutes, what was the acceleration?

How can you find magnitude of velocity from a displacement time graph of an object?

Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?

If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?

Why does the liquid thermometer work?