Because evaporation requires heat (the latent heat of evaporation) and condensation releases heat (the latent heat of condensation).<span>
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Answer:
4847.94844926 kg/m³
Explanation:
= Actual density of cube = 1900 kg/m³
= Density change due to motion
v = Velocity of cube = 0.92c
c = Speed of light = 
Relativistic density is given by
The cube's density as measured by an experimenter in the laboratory is 4847.94844926 kg/m³
F = ma, where m is the mass of the body and a its acceleration.
So F = 39x7.8 = 280.8 N
D as that's the only negative shown out of those choices.
The statement is false because the energy released from the sun is the result of a nuclear fusion reaction. This type of nuclear reaction involves the fusing of two hydrogen nuclei to form a heavier helium atom. The energy involved here is much greater than nuclear fission, and involves higher temperature.
