A water pump pumps 3 kg of water every second from the bottom of a well to the top of the well 50 m above if the pump used 2000 W of electrical power to accomplish the task what is the efficiency of the pump

Suppose you exert a 25-N force to lift a ball 0.4 m in 2 s. How much work is done?

If two electrons in the same atom have the same four quantum numbers, then they must have the same energy. A) true B) false C) They cannot both have the same four quantum numbers.

Which of the following color pallettes is on trend for 2020? a primary colors b earth tones c cool tones d hues of pink

Which change will always result in an increase in the gravitational force between 2 objects

Difference between force and acceleration

You are going to develop some photographic film that involves a chemical reaction between the developer, which you will mix yourself, and a chemical on the surface of the film.

Would time travel mean that parallel universes would be created off our linear time sequence to ensure the universe doesn't collapse itself because of significant events being drastically changed in the way it shapes the universe?

What is the central core of hair

A star with the same mass of the sun has a newly discovered planet whose semi-major axis of 2.48 au and an eccentricity of 0.08. what is the aphelion distance of the new planet

What does a hurricane hunter do