A radio tower emits energy in the form of waves. These waves travel great distances. Some of them even leave Earth and travel
through the vacuum of outer space.
What type of energy is described above?
A. light energy
B. sound energy
C. heat energy
D. kinetic energy

Explain why electric current cannot exist if a current doesn't have a voltage source.

Does anyone have the answers to online physics course plato course physics, semester a v3.0

Imagine an isolated positive point charge q (many times larger than the charge on a single proton). there is a charged particle a (whose charge is much smaller than charge q) at a distance from the point charge q. on which of the following quantities does the magnitude of the electric field created by charge q at particle a's position depend? check all that apply.the type of the charge on the charged particle athe relative orientation between q and a (while the distance between q and a is fixed)the specific location of the charged particle a (while the distance between q and a is fixed)the amount of the charge on the point charge qthe specific location of the point charge q (while the distance between q and a is fixed)the distance between the point charge q and the charged particle athe amount of the charge on the charged particle a