1. What is the gravitational potential energy of a 6kg bowling ball placed on a shelf 2m above the floor? g= 9.8m/s^2
PE=mgh

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.