Albert Einstein is in an elevator standing on a scale that reads the magnitude of the normal force exerted on him. The elevator is moving upward and slowing down as it reaches the top floor. If Albert has a mass of 79 kg, and the magnitude of the acceleration of the elevator is 1.5 ms2, what does the scale read as the elevator slows? Round your answer to the nearest tenth (for example 510.5 N). Please Hurry!

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?