What is the magnitude and direction (left or right) of the net force acting on the box?to the

Energy flows from the producer level to the level. is called

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

During the past 150 years in the united states, how did energy consumption compare to population growth