Food deteriorated more slowly in a refrigerator because
1 answer:
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Answer:
The fraction of the time is 38.67%.
Explanation:
Given that,
Energy = 4.68 KJ
Resistance = 60
Voltage =110 V
If the rate of heat energy supplied by the coil to the oil bath = Q
We need to calculate the power released by the resistor at voltage
Put the value into the formula
We need to calculate the fraction of the time
Put the value into the formula
The percentage of time is
Hence, The fraction of the time is 38.67%.
Answer:
<em>The gravitational potential energy of the parachutist is 3,528,000 J</em>
Explanation:
<u>Gravitational Potential Energy </u>
It's the energy stored in an object because of its height in a gravitational field.
It can be calculated with the equation:
U=m.g.h
Where:
m = mass of the object
h = height with respect to a fixed reference
g = acceleration of gravity, usually taken as .
The parachutist has a mass of m=120 kg and he jumps at a height of h= 3,000 m. Computing the gravitational potential energy:
U = 120 * 3,000 * 9.8
U = 3,528,000 J
The gravitational potential energy of the parachutist is 3,528,000 J