Aloaded sled weighs 5000 n. it is pulled on level snow by a horizontal force. the coefficient of kinetic friction between sled and snow is 0.050. how much work is done by the force if the sled traveled 1000 m at constant speed

Why don't you see your reflection in water with waves or repples

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

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?