What device captures sound waves and transforms them into mechanical energy to make recordings? a. Telephone c. Harpsichord b. Phonograph d. Piano

a certain engine has a second-law efficiency of 85%. During each cycle, it absorbs 480J of heat form a reservoir at 300C and dumps 300J of heat to a cold termperature reservoir. What is the temperature of the cold reservoir?

Why do gamma rays have no charge?

Young's Modulus of elasticity is a) Shear stress/Shear strain b) Tensile stress/Shear strain 9. c) Shear stress / Tensile strairn d) Tensile stress/Tensile strain e) None of these

How far away from the earth is the sun?

A bag of potatoes has a mass of 2.5 kg. What is its approximate weight on Earth?

Compare and contrast how wind and glaciers abrade rock

An object of mass 10 kg is accelerated upward at 2 m/s squared. what force is required?

How much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m horizontally with a force of 5.00 N? Express your answer in joules and kilocalories.

Arrange the objects in order from least to greatest potential energy. Assume that gravity is constant. (Use PE = m * g * h.

No physical processes have ever been demonstrated which provide a mechanism for the universe to assemble itself. True False