The amount of sunshine illuminating a wall of a building can greatly affect the energy efficiency of the building. The solar radiation striking a vertical wall that faces east is given by the formula where R₀ is the maximum solar radiation possible, is the angle that the sun makes with the horizontal, and is the direction of the sun in the sky, with = 90^o when the sun is in the east and = 0 ^o when the sun is in the south. What percentage of R₀ is striking the wall when is equal to 60^o and the sun is in the southeast?
Round the answer to the nearest integer.

Question

The amount of sunshine illuminating a wall of a building can greatly affect the energy efficiency of the building. The solar radiation striking a vertical wall that faces east is given by the formula

where R₀ is the maximum solar radiation possible,

is the angle that the sun makes with the horizontal, and

is the direction of the sun in the sky, with

= 90^o when the sun is in the east and

= 0 ^o when the sun is in the south. What percentage of R₀ is striking the wall when

is equal to 60^o and the sun is in the southeast?
Round the answer to the nearest integer.

Quizplus · Accepted Answer

The Answer of The amount of sunshine illuminating a wall of a building can greatly affect the energy efficiency of the building. The solar radiation striking a vertical wall that faces east is given by the formula where R₀ is the maximum solar radiation possible, is the angle that the sun makes with the horizontal, and is the direction of the sun in the sky, with = 90^o when the sun is in the east and = 0 ^o when the sun is in the south. What percentage of R₀ is striking the wall when is equal to 60^o and the sun is in the southeast? Round the answer to the nearest integer. A)40 % B)59 % C)20 % D)25 % E)35 %

The Amount of Sunshine Illuminating a Wall of a Building