What is domain theory? How does it explain how an electromagnet become magnetic

On a brisk walk, a person burns about 331 Cal/h. If the brisk walk were done at 3.0 mi/h, how far would a person have to walk to burn off 1 lb of body fat? (A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal.) mi?

2. Which one of the following statements are true of the sample of matter described by Figure 1? a. As heat is added to the sample, its temperature always increases. b. The sample is melting between a temperature of about - 100°C and - 10°C. c.

Find the electric flux passing through the 45° surface of an upright circular cone with a base diameter of 4 m if the electric field going through it is a uniform 20 N/C directed straight upward.

As light from air to water to glass, it will refract. The best explanation for this would be

The flywheel of a gasoline engine is required to give up 600 j of kinetic energy while its angular velocity decreases from 790 rev/min to 450 rev/min. what moment of inertia is required?

In static electricity what are the subatomic particles, their charges, their location in the atom

How does resistance affect the current in a circuit?

The period of a cepheid variable star and the time of one recent maximum can be used to predict the time of a future maximum. suppose that you calculate the time of future maximum brightness and then make measurements to observe this maximum.

An Ohmic material is one in which its resistance does not depend on the voltage across it or the current within it. In that case, the resistance does NOT depend on:

A concave lens is also called a diverging lens.