What are two ways to change the state of a substance?

If the primary coil of a transformer has 200 turns and is supplied with 120 v ac power, how many turns must the secondary coil have to provide 12 v ac power?

I am a titan condemned by Zeus to support the heavens upon his shoulders; son of Iapetus and the nymph clymene; brother of Prometheus and Epimethius. Who am i?

Does gravity exist without air?

What is the origin of igneous rocks

The chemical formula for sodium fluoride is A) Na7F B) NaF C) NaF2 D) NaF7

Technician A says that torque-to-yield head bolts are special bolts that are reusable. Technician A says that main bearing clearance can be calculated by knowing the inner diameter of the main bearing and the outer diameter of the main journal.

Which condition describes an object having terminal velocity? a. gravity > air resistance b. gravity < air resistance c. gravity = air resistance

All objects that have mass have gravity, and gravity pulls objects toward each other. A pencil has mass, and so does your hand. Yet a pencil drops to the floor when you let go of it. Why doesn't the pencil stick to your hand instead?

The radius of a car wheel is 3 inches. how far will the car travel in 10 revolutions of the wheel?

What happens to a muscle when you exercise it?