Physics, 13.10.2020 15:01 cyberdac01

Which best describes why heat pumps are reversible? They can heat and cool an indoor space.
They involve a metal expanding or contracting against another.
They combust and can also add coolant.
They allow a piston to move up and down.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 11:50, kelseybell2707

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

Answers: 3

continue

Physics, 22.06.2019 20:40, ashleyd9243

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?

Answers: 1

continue

Physics, 22.06.2019 21:50, nathaniel12

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.

Answers: 3

continue

Physics, 22.06.2019 23:50, jazzzzhands21

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?

Answers: 2

continue

You know the right answer?

Which best describes why heat pumps are reversible? They can heat and cool an indoor space.
T...