Demagnetize

Which events cause ferromagnetic materials to magnetize and which events cause them to demagnetize?

What is the resistance in the circuit if Voltage is 6.0V and Current is 0.3A?

The moon's surface gravity is one-sixth that of the earth. Calculate the weight on the moon of an object that has a mass of 24 kg.

A gas cylinder is fitted with a valve that opens and let's gas out if the gas becomes too hot. Explain how the gas pressure changes if the gas becomes too hot and the valve opens.

A ball thrown with 50N of force accelerates at 25 m/s2. What is the mass of the ball?

State any differences between Mass and weight

Which type of wave experiences a change in speed when entering a new medium? a) only sound waves b) both sound and light waves c) only light waves d) neither sound or light waves

Three basic classes of collisions include all but which of the following?

How does the use of biomass energy to create electricity harm the environment

Which physical property of iron made it popular for use in weapons? 1. Magnetism 2. Luster 3. Malleability 4. Ductility

a 2 kg rock is dropped from the top of a 30 m High building calculate the ball at the time that it strikes the ground