The energy is different within each wave type across the spectrum true or false

How would doubling the made of an object change the objects potential energy

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive