What is the net magnetic force on a compass needle? by what mechanism does a compass needle align with a magnetic field?

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?

If element x has 99 protons how many electrons does it have

What causes the development of most clouds and precipitation in the atmosphere?