A heat engine typically uses energy provided in the form of heat<span> to do </span>work<span> and then exhausts the heat which cannot be used to do work. </span><span> Since the </span>internal energy<span> of an ideal gas depends upon its temperature, the PV diagram along with the temperatures calculated from the ideal gas law determine the changes in the internal energy of the gas so that the amount of heat added can be evaluated from the </span>first law of thermodynamics<span>.</span>
Answer:
Angle of twist;Φ = (to•L²)/Gπc⁴
Explanation:
I have attached the explanation.
However, I used D for radius of shaft against c used in the question. So, if we replace the D with c, we'll have;
Φ = (to•L²)/Gπc⁴
The correct options are:
<span>B. Radiation is heat flowing in waves.
C. Conduction is heat flowing between two objects that are touching each other.
In fact, radiation is heat transferred by electromagnetic waves, while conduction is the heat transfer between touching objects (the particles of one object collide with the particle of the other object, and so heat is transferred via the transfer of kinetic energy between the molecules).
Instead, option A is wrong (because conduction </span>is the heat transfer between touching objects) and option D is wrong because convection is the heat flowing when a liquid or a gas carries the heat.
Answer:
i believe it's the last one
Explanation:
because the first law of thermodynamics states that energy can be changed from one form to another, but it cannot be created or destroyed.
good luck :)
i hope this helps
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