Which of the following proved that the de broglie's equation was correct?

A) Einstein theory of relativity B) Planck's equation

C) quantum mechanics

D) Davisson-Germer experiment

A man moving at 2 m/s accelerates at a rate of 3 m/s² for 2.5 seconds. What is the new velocity of the man?

Discuss the production, transmission, and usage of electricity in the context of conservation of energy. When electricity is "used" or we say that energy is "wasted," what is actually happening?

Find a glass jar with a screw-top metal lid. Close the lid snugly and put the jar into the refrigerator. Leave it there for about 10 minutes and then take the jar out and try to open the lid.

Suppose a cart is being moved by a certain net force. If the net force is increased by a factor of 6.8, by what factor does its acceleration change?

Which is the best estimate for the speed of a boy going fast on a skateboard? 1000 mph, 1 mph, 100 mph, 10 mph

If a body of mass 10 kg is pushed with a force of 15N, then the acceleration of the body is

Describe the position of earth moon and sun during a solar eclipse

What is an output force? a. the force a person applies to a simple machine b. the force a simple machine applies to an object c. the net force on a system d. the applied force on a system

Would iron and carbon from metallic bonds

How many joules does a shortbread cookie have