The internal energy of a system is increased by 1200 J when 500 J of work is done on the system. How much energy is transferred from the system as heat?

How much of the matter in the universe is comprised of atoms?

A 10-kg mass, hung by an ideal spring, causes the spring to stretch 2.0 cm. what is the spring constant (force constant) for this spring?

Many appliances in your home use electrical energy. What other forms of energy are produced when the appliances are turned on? Name at least three different appliances and the types of energy they produce.

Why is Sunlight a composite light

What types of rock make up the oceanic crust and how do they form?

Two small, positively charged spheres have a combined charge of 5.23 x 10^-5 C. If each sphere is repelled from the other by an electrostatic force of 1.00 N when the spheres are 2.

A car racer accelerates uniformly to a velocity of 135 m/s over a distance of 412 m. Determine the acceleration of the car.

Which of the following is the medium that creates sand dunes? a. water b. wind c. ice d. gravity

How many centimeters are in 24 meters

A spring has a spring constant of 120 newtons per meter. Calculate the elastic potential energy stored in the spring when it is stretched 2.0 centimeters.