The universe is believed to have been form from a very dense fireball billions of years ago.

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)