On a clear day at a certain location, a 119-v/m vertical electric field exists near the earth's surface. at the same place, the earth's magnetic field has a magnitude of 5.050 10-5 t.
(a) compute the energy density of the electric field. nj/m3
(b) compute the energy density of the magnetic field. µj/m3

Apositive rod is placed to the left of sphere a, and the spheres are separated. which best describes the spheres? sphere a is negative and sphere b is positive because protons from sphere a are attracted to the rod and move to sphere b. sphere a is negative and sphere b is positive because electrons from sphere b are attracted to the rod and move to sphere a. sphere a is positive and sphere b is negative because electrons from the rod move to sphere b and protons then move to sphere a. sphere a is positive and sphere b is negative because protons move from sphere b to the rod and also to sphere a.

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c