When a beam of light passes at an oblique angle into the material of lower optical density the angle is of incidence is

In what direction does the medium move relative to the direction of the wave? explain.

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).