What is the critical angle - easy definition

How does nitrogen from the air get into the bodies of plants and animals?

What are the differently types of motion in a bicycle?

Julie drives 80 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 30 mph and half the distance at 50 mph. On her return trip, she drives half the time at 30 mph and half the time at 50 mph.

What overall charge must a compound have

Select all the expressions below which represent a 20% discount off the price of an item that originally costs d dollars. A. 0.8d B. d-0.2 C. d-0.2d D. 1-0.2d

At what temperature did the substance in the test tube into a solid?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him