Why will dropping an iron magnet on a concrete sidewalk make it a weaker magnet?

A diver initially moving horizontally with speed v dives dives offthe edge of a vertical cliff and lands in the water a distance dfrom the base of the cliff.

An inductor with an inductance of 3.50 H and a resistance of 8.00 Ω is connected to the terminals of a battery with an emf of 4.00 V and negligible internal resistance.

In order to induce electrical energy into a conductor or generator, what three factors must be present?

When jumping, a flea accelerates at an astounding 1500 m/s2, but over only the very short distance of 0.41 mm?

If the radius of a neutron is 1.0*10-13cm, calculate the density of a neutron in g/cm3. (volume of a sphere = 43πr3) Express your answer using two significant figures.

Is electric charge a property of just electricity or is charge a property of all atoms?

Which of the gases found in the Earth's atmosphere is an important factor for weather conditions? A) oxygen B) hydrogen C) nitrogen D) water vapor

How do repeater stations improve the quality of a broadcast?

What is the total number of atoms in the following formula? CaBr2 04

The Amazon River is in Europe. True or False