Asample of a substance has has a mass of 7.3g and a volume of 2.8cm^3. what is the objects density?
a. 20.44g/cm^3
b. 0.38g/cm^3
c. 10.1g/cm^3
d. 2.61/cm^3

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

The necleus of an atom is made up of what subatomic particles?