Which is the hottest layer of the Sun's atmosphere?

A. photosphere

B. chromosphere

C. corona

D. radiative

E. convective

A 4kg block sitting on the floor, how much potential energy does it have?

What happens to the volume when temperature is held constant and the pressure is increased to 125 kPa

A pair of speakers on two sides of a stage are playing identical pure tones. When you stand in the center, equally distant from the two speakers, you hear the sound loud and clear.

What happens to the mass of an object when it is cooled?

Describe three important ways we use the electromagnetic spectrum in our everyday lives.

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?

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N

Which force keeps you near earths surface?

Name one process that requires a force in the human body.