A solenoid is built with 870 turns uniformly distributed over a length of 0.390 m to produce a magnetic field of magnitude 1.00 * 10-4 T at its center. What is current necessary for this to happen? 17.4 mA 35.7 mA 74.9 mA

If the centripetal and thus frictional force between the tires and the roadbed of a car moving in a circular path were reduced, what would happen? A. The car would continue to move in the circular path. B. The car would stop moving instantly. C.

How does a scrap heap magnet work? (In detail)

Which of the following best explains the polarity of water (H2O) ? A. Electrons are more attracted to the oxygen atom, so there is a partial negative charge on the oxygen atom. B.

Two boys (same height) are standing on a bridge each boy throws a rock straight down into the river below. they throw the rock at the same time, but one rock hits the water before the other one. how is this possible? g

What do hail and tornadoes have in common?

Which of the following describes resistance force?

Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most locations in the Northern Hemisphere, all of the stars in Ursa Minor are circumpolar.

What is an organism ability to maintain a steady internal condition called

What is the fundamental frequency of a particular medium?. a. the lowest frequency at which a standing wave is possible. b. the highest frequency at which s standing wave is possible

The distance from the inner core to the surface of the earth is about 5,200 kilometers. the large amount of material surrounding the inner core places tremendous pressure on it.