To solve this problem it is necessary to apply the concepts related to the coefficient of performance. The coefficient of performance allows us to relate both the Heat and the Work done on a heat pump or cooling system to know the percentage of losses or input energy.
Mathematically your relationship can be expressed as
Where,
Q = Heat
W = Work
Our values are given as
COP =4.2
Cooling
Replacing at our equation we have,
Therefore the work is 60J.
It illustrates the functioning of different Neural networks
Answer:
Coefficient
Explanation:
For an object on level ground, the ratio of the friction force to the weight is the coefficient of friction.
F / W = μ
Answer: I0*0.853
Explanation:
Ok, the Malus's law says that:
If you have light polarized along a given line with an intensity I0, and it passes through a polaroid which axis of polarization forms an angle θ with respect to the polarization of the light, then the intensity of the resulting beam is:
I(θ) = I0*cos^2(θ)
For example, if the axis of the polaroid is exactly the same as the axis of polarization of the light beam that will impact it, then we have θ = 0°, and the equation above says that the intensity of the beam will not change.
In this particular case, we have that the intensity of the light is I0, and the angle is θ = 22.5°
Then:
I(22.5°) = I0*cos^2(22.5°) = I0*0.853
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