Read Made-to-Order Magnets. Keep the article open throughout the assignment. Select the statement that best summarizes the central idea of the article. Electromagnets are useful in many situations because they can be turned on and off. Motors change mechanical energy to electrical energy. Electromagnets work whether or not electricity is passing through the wire. Electromagnets are useful around the home but not in industry.

What prevents odyssey from killing the sleeping cyclops

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.