Physical changes do not change the identity of the substance. Heat causes chemical reactions. You cannot see chemical changes with the naked eye. The identity of a substance changes like when you burn paper, from paper it turns into ash and produces smoke, which are products from the chemical reactions.
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Lateral Area = AL = 70*π
<span>Perimeter of Circle = PC = 2*π*R (R = Radius) </span>
<span>Length of Altitude = L = AL / PC = 70*π / 2*π*R = 7 inches</span>
Answer:
The average power is
Explanation:
From the question we are told that
The energy of the appliance is
The time considered is
Generally the average power consumption is mathematically represented as
=>
=>