When bonds between atoms are broken or formed, what is the outcome?
a. a physical change
b. an element increasing in size
c. a chemical change
d. a change of state

Which of the following energy forms are invovled in a nuclear power plant ? heat ,sound , electrical , nuclear ,mechanical

Aball is thrown straight up into the air with a speed of 21 m/s. if the ball has a mass of 0.1 kg, how high does the ball go? acceleration due to gravity is g = 9.8 m/s^2. a. 22.5 m b. 20.0 m c. 25.0 m d. 17.5 m

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.