Answer:
30.81°
Explanation:
θ₁ = angle of incidence = 50°
θ₂ = Angle of refraction
n₂ = Refractive index of glass = 1.5
n₁ = Refractive index of air = 1.0003
From Snell's Law
Using Snell's law as:
Angle of refraction= sin⁻¹ 0.5122 = 30.81°.
Answer:
The power to maintain constant temperature is 18.56kW
Explanation:
Given
Required
Determine the power to maintain constant temperature
The power to maintain a constant temperature is the difference between heat loss and gain
i.e.
This gives:
Convert Btu/h to kW
So:
<em>Hence;</em>
<em>The power to maintain constant temperature is 18.56kW</em>