Your little brother holds a 2 kg water balloon over the railing of his 15 m high tree house. what is the gravitational potential energy of the water ballon? a) 2kg x 9.8 m/s^2 x 15m b) 2kg x 15m c) 2kg + 9.8 m/s^2 + 15m d) 2kg x 15m + 9.8 m/s^2

In which direction is the pacific plate moving in relation to the north american plate?

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Why is it important that fibrin is insoluble in water?