Rays of the sun are seen to make a 34.7° angle to the vertical beneath the water. at what angle above the horizon is the sun?

49.19°

Explanation:

θ₁ = Angle of incidence

θ₂ = Angle of refraction = 34.7°

n₁ = Refractive index of air = 1.0003

n₂ = Refractive index of water = 1.33

From Snell's Law

In order to find the angle of sun above horizon we have to subtract the angle

90 - 49.19 = 40.81

The sun is at an angle of 40.81° above the horizon.

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

answer; i believe the correct answer is (40,000 j) good luck