Potential energy (Ep) is equal to the mass (m) of the subject multiplied by the height (h) from sea level that its positioned multiplied by the earth acceleration (g).
Ep = mgh
In your case m = 70 kg, g = 9.8m/s^2 , h = 3m , all the units are in SI, so simple multiplication gives Ep = 2060 J or Nm^2
The cost of operating the iron is $2186.49.
To find the answer, we have to know about the power.
<h3>How to find the cost of electricity?</h3>
- We have the expression for cost of electricity as,
- It is given in the question that, the cost per kWh is $0.10, the current is 5.2A, the voltage is 240V.
- We have to find the cost for two years, before that, we have to find the power and it will be,
- Thus, the value of cost will be,
Thus, we can conclude that the cost of operating the iron is $2186.49.
Learn more about the power here:
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