Explain the advantage of operating a motor vehicle that is 20% efficient instead of one that is 10% efficient

If the earth was a spinning globe, what would happen to the oceans?

Sugar molecules can be oxidized in the cell of animals. This oxidation releases energy for the animal to use. From what soured do the cells get these molecules.

A spaceship is traveling directly away from earth with speed 4t2+6 km/s. At time t=0 is is 250 km from earth. How far is it from earth one minute after time t=0? Include units in your answer.

Scientists use models to A) increase the duration of a volcanic eruption B) change the location of a volcanic eruption C) predict the damages due to an earthquake D) stop the occurrence of tsunamis due to an earthquake

What do radio waves and microwaves have in common? A) Both are at the side of the spectrum that has the highest radiant energy B) Both are found next to visible light on the electromagnetic spectrum C) Both are at the side of the spectrum that has

If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?

Explain why meteorologists compare new weather maps and weather maps that are 24 hours old

Describe the uses of compound pulleys

Why do cities on the East Coast have warmer climates than cities on the West Coast at similar latitudes?

What energy transformations take place when you eat a taco and then go for a jog around the neighborhood?