Which statement describes a reason to consider air a mixture?

If a car travels 500 m in 25 second how fast is it traveling?

Doug is doing work. Without knowing exactly what he is doing, which can be said about the work he is doing? Energy is transferred. Energy is increased. Energy is decreased. Energy is unchanged.

Light from a sodium lamp passes through a diffraction grating having 1000 slits per millimeter. The interference pattern is viewed on a screen of 1.00m behind the grating. Two bright yellow fringes are visible 72.88cm and 73.

Amy has a mass of 50kg, and she is riding a skateboard going 10m/s. what is her momentum

Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high - many times higher than the wind speed. a typical modern turbine has blades 56 m long that spin at 13 rpm.

What are factors that would change the position of the wave lengths measured? (There are more than one answer.) a) size of the tube b) tuning fork frequency c) distance between the tuning fork and tube d) room temperature e) area of the tube

This particle is found in the nucleus and adds mass to the nucleus, but changing its number does not change what the element is. This particle is the A. proton. B. photon. C. neutron. D. electron.

Projectile motion is an example of what kind of motion

What can change scientific knowledge?

6. What is ductility?