Answer:
The efficiency of each cycle of a heat engine is 30 %.
Explanation:
Given that,
Heat absorbed by a heat engine, Q = 64 kcal
Heat exhaust by a heat engine, Q' = 42 kcal
We need to find the efficiency of each cycle. The efficiency of heat engine is defined as the ratio of work output to the energy supplied. It is given by :
or
So, the efficiency of each cycle of a heat engine is 30 %. Hence, this is the required solution.
Answer:
Magnetic field lines can be drawn by moving a small compass from point to point around a magnet. At each point, draw a short line in the direction of the compass needle.When opposite poles of two magnets are brought together, the magnetic field lines join together and become denser between the poles.
Explanation:
Answer:
Work:
Hope this helps you. Kinematics can be tricky, but I'm sure you'll get a good grip on it. Have a good night.
The north and west components of this displacement are 9.19 km and -7.71 km respectively.
<h3>
North component of the displacement</h3>
The north component of the displacement is calculated as follows;
Dy = D sinθ
Dy = 12 km x sin50
Dy = 9.19 km
<h3>West component of the displacement</h3>
Dx = D x cosθ
Dx = - 12 km x cos(50)
Dx = -7.71 km
Learn more about components of displacement here: brainly.com/question/13416288
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