How does direct current differ from alternating current?

Satellite X moves around Earth in a circular orbit radius R. Satellite Y is also in a circular orbit around earth, and it completes one orbit for every eight orbits completed by satellite X. What is the orbital radius of satellite Y?

Which of Kepler's laws describes the relationship between the average distance of a planet from the Sun and the time the planet needs to make a revolution around the Sun? a. the law of gravity b. the law of periods c. the law of ellipses d.

A horse ran 5.75m/s for 3.5min, how far did it travel

If a force of 65 N is exerted on a 45 kg sofa and the sofa is moved 6.0 meters, how much work is done in moving the sofa? 17,550 J 171.990 J 390 J none of the above

Convert 1 mm of hg into Pascal. Take density of hg = 13.6*10^3kg/m^3. g = 9.8m/s*s

How many atoms are in NaHCO3

Which is a result of using a machine? The amount of work that is done is increased. The work input is less than the work output. Both the force and the distance through which it acts increase.

What is the difference between electromagnet and electromagnetism?

Which of the following can be determined by studying the spectrum of a star? the chemicals in the atmosphere of the star the motion of the star the temperature of the atmosphere of the star all of the above

How do I find the specific heat of an object?