What is the measure of an average kinetic energy?

What two simple machines make up a screw?

How far away is a RR Lyrae variable star if it has a period of 0.5 days and a brightness of 2.3 x 10^-11 W/m^2?

What is the density of the block? Assume that the block is 40.0% submerged. First Sketches says block weigh 50g Express the density numerically in grams per cubic centimeter.

An object with momentum must also have a. acceleration b. kinetic energy c. impulse d. force

If 320 J of work is done on a spring with a spring constant of 730 N/m, how far will it stretch? a 0.58 m b0.87 m c0.94m d0.61

What information on the periodic table is used to complete electron dot diagrams?

A two-slit Fraunhofer interference-diffraction pattern is observed with light of wavelength 672 nm. The slits have widths of 0.03 mm and are separated by 0.24 mm. How many bright fringes will be seen inside the central diffraction maximum?

What is the primary mechanical advantage of a screw?

Find the density of seawater at a depth where the pressure is 950 atm if the density at the surface is 1100 kg/m3. Seawater has a bulk modulus of 2.3 * 10^9N/m2. Answer in units of kg/m3.

If you want to double the kinetic energy of a gas molecule, by what factor must you increase its momentum? A) 16 B) √2 C) 2 D) 2√2 E) 4