6. The temperature of a mass of tin increases from 24.0 degrees C to 34.0 degrees C when 250 J of thermal energy are added. Calculate the mass of the tin. The theoretical specific heat capacity of tin is 0.228 J/g degrees C.

How does the nuclear charge relate to the energy of the 1s orbital?

Classify each of the following items as a rigid body, a system of rigid bodies, or a nonrigid body: a. a fishing pole, b. a diving board, c. a mechanical spring, d. a bowling ball, e. a baseball bat, f. a system of gears, g.

A box is pulled up a rough ramp that makes an angle of 22 degrees with the horizontal surface. The surface of the ramp is the x-plane, What is the magnitude of the force of tensionit te ne force in the direction of 98 N2 57N 139 N 178N 183N F =

What property of all ionic compounds make them electrolytes

Kathy has found she must consume 2000 cal a day to reach her health goals and she has been following this carefully, but leave me she had been feeling exhausted and dizzy.

The engine that powers a crane burns fuel at a temperature of 1500 oC. It is cooled by air at a temperature of 20 oC. The crane is used to lift a 1000 kg steel girder 30 m into the air.

The portion of a light ray that falls on a surface is a/an

Give the definition for diffusion. (A) gas molecules mix unequally average distance between collisions (B) gas molecules escape from a container into a vacuum through a small hole (C) gas molecules mix equally (D) gas molecules spread out in a

As resistance goes up, what happens to the current?

1. A 0.828-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. a) Find the momentum of the electron. b) Find the kinetic energy of the electron.