What physical property makes the red light different from blue light, or radio waves different from microwaves?

A car travels 210 miles in t hours at a speed of r mph. if the car travels half as fast but five times as long, how far does it travel? (use the fact that distance equals speed times time.)

F a metal ball suspended by a rod is at rest, which force is responsible for balancing the force due to gravity?

If object A has a mass of 10kg and object B has a mass of 20 kg, and both are dropped from the same distance (not considering air resistance)

Which activity is an example of a chemical change? a. sugar dissolving in water b. water evaporating into water wapor c. lighting a match d. freezing water

How does the mass of a bowling ball that has been rolled down the lane affect the kinetic energy?

How do mountins building and volcanos relate to plate motion at convergent boundaries

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.