The chart shows the speed at which light travels through different media.

A 2 column by 5 row table. Column 1 is titled Medium and contains the following entries: Water, Air, Glass, Diamond. Column 2 is titled Speed of Light (meters per second) and contains the following entries: 2.25 times 10 Superscript 8 baseline, 2.99 times 10 Superscript 8 baseline, 1.97 times 10 Superscript 8 baseline, 1.24 times 10 Superscript 8 baseline.
In which medium would light have the longest wavelength?

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

Why don't you see your reflection in water with waves or repples

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.