What does the electric field strength tell about the electric firld?
magnitude
direction
both

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

If a 250-g mass is hung on two identical springs, hung side by side , and both support the 250-g mass, how much will each spring stretch?