An automobile with tires that have a radius of 0.260 m travels 76000 km before wearing them out. How many revolutions do the tir
1 answer:
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Efficiency
Explanation:
Efficiency is a ratio/percentage that is useful in comparing the energy transferred by a device to the total energy supplied to it.
Percentage efficiency = x 100
- As with most system, none is 100% efficient.
- During energy is transferred some are lost and only a little portion is used in doing actual work by the machine.
- This validates the third law of thermodynamics which proposes that no system is 100% efficient.
- A 100% efficiency implies total energy input is used doing all the work.
- This is impossible. The bulk of the energy goes into heating the system.
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Third law of thermodynamics brainly.com/question/3564634
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Answer:
acceleration in the new orbit is 8 time of acceleration of planet in old orbit
Explanation:
given data:
radius of orbit = R
Speed pf planet = v
new radius = 0.5R
new speed = 2v
we know that acce;ration is given as
acceleration in the new orbit is 8 time of acceleration of planet in old orbit