The cells in your body get energy from the foods you eat. however, your cells must use energy to get this energy. why?

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Why are graphs useful when interpreting data