Which is an idea that Einstein introduced to his theories of relativity

Which concept was supported by taking measurements of the same stars at night and then again during solar eclipses? gravitational lensing principle of equivalence gravitational time dilation gravitational redshift

What is the net force on a cart that is pulled to the right with 100 pounds of force and to the left with 30 pounds of force? A. The net force is 70 pounds to the right. B. The net force is 130 pounds. C. The net force is 70 pounds to the left. D.

A man is walking away from a lamppost with a light source h = 6 m above the ground. the man is m = 2 m tall. how long is the man's shadow when he is d = 8 m from the lamppost?

One end of a metal rod is placed in a hot fire. At the atomic level, how does heat transfer down the length of the rod?

The electromotive force that causes electrons to move along a conductor is called?

Which force does not operate at a distance of 1 m? A. Weak nuclear O B. Electric C. Gravitational D. Magnetic

The deflection of alpha particles in rutherford's gold foil experiments resulted in what change to the atomic model?

What happens during evaporation? A liquid changes to a gas. A liquid changes to a solid. A gas changes to a liquid. A solid changes to a liquid.

In a nuclear reaction, what is the name for the difference in mass when one type of matter is converted into another? A. radiation B. nucleons C. antimatter D. mass defect

Aspect of the physical world