A 17 kg box sitting on a shelf has a potential energy of 350 J. How high is the shelf? Round your answer to the nearest whole number. The shelf is
m high.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

What are atoms of the same element with varying number of neutrons