If you have ever used a compass, you know that it can be used to navigate. it does this with a needle that always points north, so you know which direction you are heading. why does a compass needle point north?

a)due to the direction of the earth's orbit.
b)due to the influence of the earth's rotation.
c)due to the influence of the earth's magnetic field.
d)due to the influence of the earth's electric field.

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

Ihope you find the answer

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then