Bukhovtsev-et-al-Problems-in-Elementary-Physics

86
PROBLEMS
p
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Fig. 146
Fig. 147
Hg for one hour, after which it sharply drops. The capacity of
the pump is 60 lit/min. The temperature under the pump bell
is t = 5°C. What amount of water did the body contain?
394. Water with a mass of m == 30 g at a temperature of 0°C
is in a heat-insulated cylinder under a weightless piston. The
area of the piston A = 512 em- and the external pressure p = 1 atm.
What height will the piston rise to if an electric heater contained
in the cylinder supplies Q = 5,760 cal?