14. L= = L (1-(v/c)2)/2
A stationary scientist measures the length of a meter stick that is passing by at 0.6
times the speed of light (0.6c). How long does he perceive the stick to be?

Aballet student who learns with the of his instructor is demonstrating learning.

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?