Answer:
Explanation:
Average power in AC is given as
As we know that when AC is connected across the Resistor then we will have
now we have
here we have
now we have
Answer:
The second is defined in terms of a cesium-atom laser and its vibrations.
Explanation:
However, real time is defined in terms of the mean solar day, and it is thus necessary to add leap seconds to the atomic clocks to keep them in line with the astronomical clocks.
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Answer:
Potential energy = 3635.8 Joules
Explanation:
Given that,
Weight lifted by a weight lifter is 12 kg
It lifts to a height of 1.75 m
We need to find the potential energy to the wights now have. The energy possessed by an object due to its position or height above ground is called potential energy. Its formula is given by :
P = mgh
g is the acceleration due to gravity
So, the potential energy is 3635.8 joules.