whitelocust76

An underwater scuba diver sees the Sun at an apparent angle of 28.0° from the vertical. What is actual direction of the Sun?
 ° (above the horizon)

A laser beam is incident at an angle of 31.6° to the vertical onto a solution of corn syrup in water.

(a) If the beam is refracted to 18.54° to the vertical, what is the index of refraction of the syrup solution?
(b) Suppose the light is red, with wavelength 632.8 nm in a vacuum. Find its wavelength in the solution.
 nm
(c) Find its frequency in the solution.
 Hz
(d) Find its speed in the solution.
 m/s

An underwater scuba diver sees the Sun at an apparent angle of 33.0° from the vertical. What is actual direction of the Sun?
above the horizon

The sum of three numbers is 98. The ratio of the first to the second is 2/3, and the ratio of the second to the third is 5/8. The second number is?