A rock that forms when magma hardens beneath the earth's surface is called

What do refrigerators and air conditioners use to move heat?

What's a real life example of relative motion?

Similarities between mechanical and electromagnetic waves are

Which of the following explains why a bicycle uses a lever? reduces the effort force*I picked this one increases the effort force reduces the resistance force increases the resistance force

The fundamental frequency of an open organ pipe corresponds to B above middle C (493.9 Hz on the chromatic musical scale). The third resonance of a different closed organ pipe has the same frequency.

Describe how the competition between invasive and native species might affect a food web

Which vector should be negative? any vector whose magnitude is less than 1 a displacement in the direction North any vector whose magnitude is greater than 1 the velocity of a falling object

Acceleration is a scalar quantity true or false

Find a numerical value for rhoearth, the average density of the earth in kilograms per cubic meter. Use 6378km for the radius of the earth, G=6.67*10-11m3 / (kg⋅s2), and a value of g at the surface of 9.80m/s2.

The driver of a car traveling at 32 m/s applies the brakes and undergoes a constant deceleration of 2.25 m/s^2.