Calculate the number of vacancies per cubic meter in gold (au) at 900c. the energy for vacancy formation is 0.98 ev/atom. furthermore, the density and atomic weight for au are 18.63 g/cm3 (at 900c) and 196.9 g/mol, respectively.

Which of these objects would most likely cause a sound wave? a drill laying on its side a nail stuck into a piece of wood a hammer hitting a metal cup a wrench locked in place around a bolt

A 600 N astronaut travels to an asteroid where the gravitational force is one-hundredth that of Earth. What is the astronaut's weight on the asteroid? A 6 N B 6 kg C 600 kg D 60,000 N

A 50.0kg bicyclist on a 10.0kg bicycle speeds up from a 5.00m/s to 10.0m/s

By what factor would a person's weight be increased if Earth had 10 times its present mass, but the same volume?

Why don't you feel the pressure exerted by atmosphere?

During a free fall Swati was accelerating at - 9.8m/s2. After 120 seconds how far did she travel? Use the formula = 1/2 * t2 to solve your answer. (Do not forget to keep units in your answer.)

How do sinkholes form?

What is the result of wave motion on water particles? A.) Water particles are pushed forward as they move up and down. B.) Water particles barely move forward as they move up and down. C.) Water particles are pushed down as they move side to side. D.

Nitric acid (HNO3) and potassium hydroxide (KOH) combine in a neutralization reaction to form water and a salt. Which of the following correctly identifies the salt that is produced? OHK NOK2 KNO3 HOH

When the speed of something is the same what is that called