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Answer :
The human body emits approximately 360,000 joules of heat energy in an hour.
Heat energy refers to the form of energy that is transferred between objects or systems due to a difference in temperature. It is a type of thermal energy, which is associated with the motion and vibration of particles at the atomic or molecular level.
Conduction: This occurs when heat energy is transferred through direct contact between objects or substances. In conduction, heat flows from regions of higher temperature to regions of lower temperature, as the particles with more energy collide with those of lower energy, transferring the energy.
Convection: Convection involves the transfer of heat energy through the movement of fluids (liquids or gases). When a fluid is heated, it becomes less dense and rises, while the cooler, denser fluid sinks. This creates a circular motion called a convection current, facilitating the transfer of heat.
If the human body produces about 100 watts of heat energy per unit of time, we can calculate the amount of heat energy it emits in an hour by multiplying the power by the duration. In this case, the duration is one hour, which is equivalent to 3600 seconds.
So, to calculate the heat energy emitted by the human body in an hour, we can use the formula:
Energy = Power × Time
Energy = 100 watts × 3600 seconds
Energy = 360,000 joules
Therefore, the human body emits approximately 360,000 joules of heat energy in an hour.
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