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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The french revolution led to many deaths and impacted history because of the amount of life lost
If each lightbulb is identical they should have approximately the same resistance therefore the voltage would be split equally so the Voltage over each light bulb would be 3V.
Answer:
Explanation:
The volume of the tank = 50 kton
50 kton = 5 × 10⁷ kg
Since 18 grams of water will contain: 10 electrons × 6.023 × 10²³
Then;
5× 10⁷ kg will contain 
= 1.67 × 10³⁴ electrons
(b)
Suppose:
Then;
10⁻⁶ of 
Thus, the number of high energy neutrinos which will interact with water is:
= 
= 
= 
For 1.67 × 10³⁴ electrons, the detection rate is:
= 9.668 per day
The function of concrete shielding in a nuclear reactor is: <u>to contain radiation.</u>
<u>Explanation</u>:
The reactor core in the nuclear reactor is placed in a steel pressure vessel. The steel vessel is then shielded by a thick layer of concrete. The concrete shielding is done to protect the workers from radiation.
The nuclear power station must be built on hard solid rock as the reactor is heavy in structure. The radiation emitted from the reactor may harm the human being. To avoid this, the concrete shield is made to prevent the emission of radiation.
