The SI / Metric unit of force is the ' Newton '.
1 newton is the force that accelerates 1 kg of mass at the rate of 1 m/s² .
Answer:
calculate each person's relative strength
Explanation:
Answer:
Explanation:
Given
The weight of the object, when submerged in the water is
When it is submerged in the bromine liquid, it weighs
Suppose,
for water,
For bromine
Divide (i) and (ii)
Put the density value in equation (i)
Efficiency of heat engine is determined by the ratio of difference in temperature of cold from hot reservoir to the temperature of hot reservoir over temperature of hot reservoir.
Answer: Option A
<u>Explanation:</u>
Efficiency is defined as the output from the input. So it is the ratio of energy output to the energy input. In case of temperature, it is the change in temperature from hot reservoir to cold reservoir with the overall hot reservoir temperature.
Thus, option A is the most suitable as the heat will be transferred from high temperature to low temperature. So the hot reservoir will be releasing the energy. So the conversion of hot reservoir temperature to cool reservoir temperature is defined as the efficiency. Thus, option A is the most suitable.
Answer:
Due to the law of conservation of energy.
Explanation:
Due to the law of conservation of energy, which states that the total amount of energy in any isolated physical system remains constant over time. Therefore, in pair production the energy of the boson must have higher energy than the sum of the rest mass energies of the created particles, otherwise this process would be creating energy, which violates the law of the conservation of energy.