Why doesn't a transformer work with direct current? why is ac required?

The speed of a wave depends upon: A. The wavelength of the wave B. The amplitude of the wave C. None of the above D. The property of the medium through which the wave is traveling

A rubber block weighing 60. newtons is resting on a horizontal surface of dry asphalt. what is magnitude of the minimum force needed to start the rubber block moving across the dry asphalt?

Exit What was Operation Overlord? A. the code name for the Allied invasion of Normandy B. the code name for the Axis invasion of France C. the code name for the project to build atomic bomb D.

A uniform electric field exists in the region between two oppositely charged parallel plates 1.70 cm apart.

A university is planning to send an optical telescope into orbit. stuents attending the university will be able to view which of the following?

Does adding a neutron to an atom's nucleus makes it an ion?

What is the difference between a fault-block and upwarped mountains?

Which of the following is not one of the reasons to properly warm up before exercising? A. Develop overall flexibility. B. Increase blood flow to the muscles and raise body temperature. C. Prevent injuries such as strains sprains and muscle cramps.

you are not chilly when swimming in warm water. but when emerging from warm water on a warm summer day, you feel chilly if the wind is blowing. Explain

A Find the magnitude of the angular momentum of the second hand on a clock about an axis through the center of the clock face. The clock hand has a length of 15.0 cm and a mass of 6.00 g.