James Joule is credited to be the first to demonstrate a clear connection between mechanical work and heat.

a) True

b) False

An ideally efficient heat pump delivers 1000 J of heat to room air at 300 K. If it extracted heat from 260 K outdoor air, how much of that delivered heat was originally work consumed in the transfer?

Which liquid will evaporate the fastest water salt water pepsi and gatorade?

The ancient indian game of chaturanga, from which the modern game of chess was derived, was played on a board with 64 squares.

A 5kg cat is lifted 2m into the air. How much GPE does it gain

According to Newton's 3rd law, the force on the (smaller) moon due to the (larger) earth is? a. greater in magnitude than, and in the opposite direction from, the force on the earth due to the moon. b.

A force is applied to a 13.0 kg wagon to pull it down the sidewalk at a constant speed. The coefficient of kinetic friction is 0.65. Considering the resulting frictional force, what is the magnitude of the applied force?

What field (s) does a moving electron have? A. electric and gravitational fields B. magnetic and gravitational fields C. gravitational, electric, and magnetic fields D. electric field only

Copper has a specific heat of 0.385 j. A piece of copper absorbs 5000 J of energy and undergoes a temperature change from 100 Celsius to 200 degrees Celsius. What is the mass of the piece of copper?

I need to learn some interesting facts, any smart people out here?

The planet Pluto has 1/500 the mass and 1/15 the radius of Earth. What is the value of g on the surface of Pluto? (A) 0.3 m/s2 (B) 1.6 m/s2 (C) 2.4 m/s2 (D) 4.5 m/s2 (E) 7.1 m/s2