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.

For communication to take place, there has to be: A. transmission of the message. B. medium. C. sharing of meaning. D. absence of noise.

A stone is thrown at an angle of 30.0 degrees above the horizontal from the top edge of a cliff with an initial speed of 15 m/s. A stopwatch measures the stone's trajectory time from the top of the cliff to the bottom at 6.30 s.

What happens to the density, volume, mass, and shape of an ice cube put in a glass jar and left out in the Sun.

Which of the following statements or expressions is most nearly associated with Kepler's Third Law of Planetary Motion? A. P2 = A3 B. Planetary orbits revolve around two foci. C. A planet moves fastest when it is farthest from the sun. D.

Which of the following is true when categorizing a hurricane? A) Storm category increases as wind increases and pressure decreases. B) Storm category increases as wind decreases and pressure increases.

What indicates a vector's size? a. direction b. magnitude c. slope d. speed

Light, dry snow is called powder. Skiing on a powder day is different than skiing on a day when the snow is wet and heavy.

Light from the sun reaches the earth in 8.3 minutes. In how many minutes does the light from the sun reach venus

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?

Which actions most likely cause the domains in a ferromagnetic material to align?