When electrical energy is used what type of energy is also produced and considered to be waste energy?

What is the rate of change in a objects position?

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?