A soil acidity affects plant growth
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Answer:
Energy of a photon is
Explanation:
Given:
Frequency of the photon is, .
Energy of a photon of frequency is given as:
, where, is called Planck's constant.
So, energy of a photon is:
Therefore, the energy of a photon whose frequency is Hz is .
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.