Aball that has a mass of 0.25 kg spins in a circle at the end of a 1.6 m rope the ball moves at a tangential speed of 12.2 m/s
what is the centripetal force acting on the ball
a. 1.9n
b 23n
c 59n
d 93n

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction

Which scientist was the first to propose the heliocentric model of the universe? a. aristotle b. isaac newton c. galileo galilei d. nicolaus copernicus