A cop investigating the scene of an accident measures the length L of a car skid marks in order to find out its speed v at the beginning of the skid. Express v in terms of L and any other relevant variables.

The mini-refrigerator fire was most likely caused by what type of wiring?

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?