Classify which of the following is a substance: tablero salt, seawater or sand? Explain how you know.

Calculate the momentum for a 0:2 kg rifle bullet traveling 300m/a

What would be the weight of an object on jupiter if the object weighs 1.7 lb on mars? express your answer to two significant figures, and include the appropriate units?

Which scientist developed the quantum mechanical model of the atom?

A 2.7-kg ball is thrown upward with an initial speed of 20.0 m/s from the edge of a 45.0 m high cliff. At the instant the ball is thrown, a woman starts running away from the base of the cliff with a constant speed of 6.00 m/s.

A projectile is launched at an angle of 30° from the horizontal and lands 69 s later at the same height from which it was launched. (a) What is the initial speed of the projectile (in m/s) ?

Describe the energy transfer when you touch a block of ice with your hand

1: Explain how insurance transfers risk to a third party.

How do you find period when you have frequency

Which electromagnetic waves have a higher frequency than visible light

Calculate the speed for a car that went a distance of 125 miles in 2 hours time