In which of the following cases does an object posses potential energy. 1. A moving bus
2. Water flowing in a river
3. A moving football
4. A stretched rubber band

this is physics question

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.

helicase, i think thats it

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )