A group of two or more stars is called a A. solar system B. neutron star C. protostar D. star system

1. Current is usually the flow of

The height h of a projectile launched from ground level is a function of the time t it is in the air. The height in feet for t seconds is given by the function h (t) = - 16t2 + 80t. What is the domain of the function?

If for 1.00 inch there are 2.54 cm, then how many centimeters are in 4.00 ft

Which home heating system is the most common in the united states?

If an object has a mass of 40 grams and a volume of 20 cm^3, what is its density in g/cm^3? A) 0.5 B) 2 C) 40 D) 800

Waves arriving at a fixed boundary are a. neither reflected nor inverted. c. reflected and inverted. b. reflected but not inverted. d. inverted but not reflected.

Two children are throwing a ball back and forth to each other aboard a rapidly moving cruise ship. The observer who is in the BEST frame of reference to accurately decide which child is throwing the ball harder is A) standing on the shore.

The velocity of car is 80.0 miles per hour. What is the velocity of car in meters per second? (1 km - 0.621 miles) m/s

The kinetic energy of an object is quadrupled. its momentum will change by what factor?

What path does energy travel as it changes from kinetic to electrical energy in a hydroelectric plant