Buoyancy is a force that always acts in an upward direction exerted by a fluid on a body placed in the fluid
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B. evaporation
c. condensation
They are opposite processes that involve the same transfer of energy
Without a bulb energy cant go through and it would be an open circuit blocking the energy from coming out.
Answer:
4 m/s
Explanation:
speed = distance/time
speed= 20/5 = 4
similarly for all no. the answer is constant,i.e. 4
