Density is a chemical property of a substance.

T

True

F

False

A ray of light strikes a thick sheet of glass (n = 1.5) at an angle of 25° with the normal. find the angle of the refracted ray within the glass with respect to the normal.

Which situation is contrary to Newton's first law of motion? An object at rest begins to move when an external force is applied. A moving object has a constant velocity under the influence of balanced forces.

What is the kinetic energy of a 1kg ball that moves at 5m/s

A stretched spring has an elastic potential energy of 35 J when it is stretched 0.54 m. What is the spring constant of the spring? Round your answer to two significant figures.

What happened to an iron bar if it is heated from 32 degree Celsius to 64 degree Celsius

What would happen to the average kinetic energy of the molecules of a gas sample if the. temperature of the sample increased from 20°c to 40°c?

A _ spreads light into its own individual colors.

What is the direction of the force when an object moved in a circle

An observer notes that the pitch of a sound is becoming progressively higher. the observer can conclude that the sound is moving

A falling back in mid air has what