Explain the differences between a physical and chemical change, and give examples of each.

Calculate the energy of the orange light emitted, per photon, by a neon sign with a frequency of 4.89 * 1014 hz.

Gravitational force on the moon is only 1/6 that of the gravitational force on earth. what would be the weight of a 10-kg object on the moon and on earth? what would be its mass on the moon and on earth?

Why hot air balloon rises up in air n large ships Floyd in water

Name the four major forces in the universe that act over long distance as I greater than the nucleus of an atom?

The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct? X-rays have lower energy than gamma rays because X-rays have higher frequencies.

Why do automobiles rust more easily in wet climates than drier climates?

You are preparing to do a hard task and so you say to yourself, "I can do it!" What is this an example of?

You took a running leap off a high diving platform. You were running at 3.1 m/s and hit the water 2.4 seconds later.

How does a boulder change

Difference between impulse and impulsive force