a 45kg box of books is lifted o a bookself 1.75 m above the floor. how much work was done to lift the books?

Which of the following is NOT a type of electromagnetic wave? Seismic waves Visible light Radio waves Microwave

Which of the following is an example of heat transfer through radiation? A. A pot of soup warming on a hot burner. B. A crayon melting on a hot sidewalk. C. Beach sand getting warmed by the sun. D. An egg getting cooked in a pot of boiling water.

What changes to landforms are caused by movements at transform boudaries

How does a vector quantity differ from a scalar quantity

A 55 kg baseball player slides into third base with an intial speed of 4.6 m/s. if the coefficient of kinetic friction between the player and the ground is 0.46, what is the player's acceleration?

A rock has a mass of 5 kg on the moon. What is the mass of the rock on the earth

A battery applies 45 volts to a circuit, while an ammeter reads 10 ma. later, the ammeter reading drops to 7 ma. assuming the resistance has not changed, the voltage must have

A 150-kg object takes 1.5 minutes to travel a 2,500 - meter straight path. It begins the trip traveling 120 m/s and decelerates to a velocity of 20 m/s. What is the acceleration?

Lava is rock that has undergone a physical change and has liquefied. What is known about this change?

At what temperature did the substance in the test tube into a solid?