A pulley is able to lift a mass of 25 kg 0.30 m with an applied force of 50 N over a distance of 1.5 m. What is the ideal mechanical advantage of the pulley system?

F a metal ball suspended by a rod is at rest, which force is responsible for balancing the force due to gravity?

Is there any electric field inside a conductor carrying an electric current?

If a ball is rolling at a velocity of 1.5 m/s and has a momentum of 10.0 kg m/s, what is the mass of the ball

How is the mechanical efficiency of a machine usually expressed 1. As a fraction 2. As a percentage 3. As inches or feet 4. As one of three classes

This theory lost its appeal when astronomers discovered quasars and cosmic background radiation.

Match the following. 1. energy a push or a pull 2. mechanical energy energy of a moving object 3. kinetic energy a force directed away from an object 4. heat the ability to do work 5. work a force moving an object through a distance 6.

Scientists hypothesize that oxygen began to accumulate in earth's atmosphere of living things with the ability to?

The 3 stages of the water cycle are

What is the main natural force responsible for mass movement of rocks and debris?

In a mass spectrometer, a specific velocity can be selected from a distribution by injecting charged particles between a set of plates with a constant electric field between them and a magnetic field across them (perpendicular to the direction of