Consider the electron in a 2p state (for simplicity, take m = 0) (i) consider whether and < 1/r> can be calculated by integrating only the radial part of the wavefunction. (ii) calculate the expectation value of the distance between the electron and the nucleus, (ii) calculate the expectation value of the reciprocal distance between the electron and the nucleus, < 1/r> . (iv) are the average potential energies of the electron in 2s and 2p states the same or different?

How much work does the charge escalator do to move 2.30 μc of charge from the negative terminal to the positive terminal of a 3.00 v battery?

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

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?