Avoltmeter is used to determine the voltage across a parallel plate capacitor; the positive plate has a 400 kv higher electric potential than the negative plate.
1) in ev, how much will the potential energy of a proton change by moving it from near the negative plate to near the posivite plate?
2) in ev, how much will the potential energy of an electron change by moving it from near the negative plate to near the positive plate?

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear