Think about a hot air balloon, as the flames heat the gases in the balloon, the volume of the gases increases. At constant press
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Atomic mass= number of protons + number of neutrons
hope this helps
hope this helps
For the part a) we need only the momentum of the box and we have the data to find it.
Momentum is given by,
where clearly, p is the momentum, m the mass of the box and v is the velocity.
Substituting,
For part b) we need an analysis of the situation. We understand that the box on a surface that has no friction will continue to rotate at the same speed previously defined. The box can only stop with friction, so,
<em>It is the same that part a)</em>