A heat pump absorbs heat from the cold outdoors at 3°c and supplies heat to a house at 20°c at a rate of 30,000 kj/h. if the power consumed by the heat pump is 3 kw, the coefficient of performance of the heat pump is

In an insulated container, liquid water is mixed with ice. What can you conclude about the phases present in the container when equilibrium is established? There would be ice only. There would be liquid water only.

What's the difference between stress and pressure?

A current in a wire increases from 2 A to 6 A. How will the magnetic field 0.01 m from the wire change? It increases to four times its original value. It increases to three times its original value. It decreases to one-fourth its original value.

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.27 times a second. A tack is stuck in the tire at a distance of 0.393 m from the rotation axis.

How many years is a light year

Airplane releases a ball as it flies parallel to the ground at a height of 195m, the ball lands on the ground at exactly 195m from the release piont, calculate the speed v of the plane

Which of the statements below is correct about waves? A) All waves do not carry energy. B) All waves carry energy without transferring matter. C) All waves carry energy by transferring matter. D) All waves transfer matter.

Anybody know where I can find a list of all the physics 1 equations and or variables?

Two identical objects are pressed against two different springs so that each spring stores 55.0J of potential energy. The objects are then released from rest.

Zonal winds on the giant planets are stronger than those on the terrestrial planets because