Explain why the coin is able to float on top of the water in this glass. Explain how viscosity is related to the flow and attraction between atoms in a liquid.

Who was the first scientist to measure speed as distance over time?

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?

What determines the amount of inertia an object has