Physics, 27.08.2019 00:20, levicorey846

for an atom’s electrons, how many energy sub levels are present in the principal energy level n = 4?

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 02:30, JOEFRESH10

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

Answers: 2

continue

Physics, 22.06.2019 03:30, MK100

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Answers: 3

continue

Physics, 22.06.2019 15:50, showerofstars

How many neutrons does plutonium -196 with an atomic number of 78.

Answers: 3

continue

Physics, 22.06.2019 16:50, lizzepacheco

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.