The momentum of any object is (the object's mass) times (its speed).
A scientific theory is different from a hypothesis because a theory is a educated guess that is being worked on and proven correct and a hypothesis is a educated guess it is a guess that needs to be proven.
Answer:
Removing some of the books reduced the mass of the box, and less force was needed to push it across the floor.
Answer:
M = 50 kg / sec * 60 sec = 3000 kg water that falls
PE = M g h initial potential energy of water
PE = 3000 kg * 9.8 m/s^2 * 20 m = 588,000 joules of energy lost
You know I’m going to be honest I don’t feel like it
