Answer is the mass of a cannonball if a force of 2,500 n gives the cannonball an acceleration of 200 m/s2? a. 12.5 kg b. 15.0 kg c. 20 kg d. 25 kg

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.