Homework Statement
An old fashioned non-homogenized milk bottle is shaken up so the cream and milk are uniformly mixed. The bottle is then placed down, and the cream and milk begin to separate. Does the bottle weigh more or less when it is being carried or just after it is put down? Estimate...
Homework Statement
A helicopter can hover when the output of its engines is P. A second helicopter, an exact copy of the first one, but its linear dimensions are half of those of the original. What power output is needed to enable this second helicopter to fly?
Homework Equations
The...