What amount of heat is required to raise the temperature of 25 grams of copper to cause a 15? C change? The specific heat of copper is 0.39 J/g? C.

What is the deffination of "The spinning of Earth on its axis"

When one tectonic plate moves underneath another, what is occurring? A. subduction B. collision C. uplift D. slip

A fast-moving vw beetle traveling at 54 mph hit a mosquito hovering at rest above the road. which bug experienced the largest force? 1. the insect 2. the vw 3. unable to determine 4. they experienced the same magnitude of force

Subduction occurs at which of the following tectonic plate boundaries?

Batteries can supply a steady flow of electrons. True False

A star may form a black hole once it cannot?

Kai was 200 meters north of the library when he remembered he had to return some books to the library. It took him 200 seconds to do the round trip. Which best describes Kai's roundtrip?

The engine that powers a crane burns fuel at a temperature of 1500 oC. It is cooled by air at a temperature of 20 oC. The crane is used to lift a 1000 kg steel girder 30 m into the air.

The portion of a light ray that falls on a surface is a/an

Give the definition for diffusion. (A) gas molecules mix unequally average distance between collisions (B) gas molecules escape from a container into a vacuum through a small hole (C) gas molecules mix equally (D) gas molecules spread out in a