We know that work= force x displacement along the direction of force
here force shoukd be equal to its self-weight.
thus, work= self-weight x displacement.
=mass x acceleration due to gravity x displacement.
= 6kg x 10m/s^2 x 10
60x10
=600J
Answer:
Explanation:
As we know that the level of intensity is given as
here we know
now the sound is travelling in all possible directions so we have
now for level of sound we have
B. Fusion requires very high pressure and temperature.
Explanation:
Nuclear fusion is the combination of atomic nuclei into larger ones with the release of a large amount of energy.
Nuclear fission is the decay process in which a heavy nuclide is bombarded with with neutrons.
- Both processes release a huge amount of energy.
- But fusion produces far more energy.
- The reason why nuclear fusion is not in use is because of the high pressure and temperature needed start it.
- The activation energy is high and the energy barrier is very great.
- Only the core of the sun naturally favors fusion
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Answer:
9.66 x 10^-6 m
Explanation:
Use the Wein's displacement law
Where, b is the Wein's constant
b = 2.898 x 10^-3 meter-kelvin
So, λm x 300 = 2.898 x 10^-3
λm = 9.66 x 10^-6 m
Boyle’s Law states that volume increases with temperature
