Earth travel around the sun at 67,000 miles per hour. The earth is in motion and stays in motion until some force causes its motion to change. Which of Newton’s Laws explains this?

How does a hydroelectric power plant converts energy into energy.

Which statement best describes the he properties of iconic compounds ?

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.