The aluminum cylinder is 10 cm high. How high does the copper cylinder need to be in order to exert the same pressure on the table?

univerkov | December 5, 2020 | education

Decision:
SI: 10cm = 0.1m
p1 = p2
F1 / S1 = F2 / S2
F1 = m1g; F2 = m2g
m1 = p1V1 = p1S1h1
m2 = p2V2 = p2S2h2
gр1S1h1 / S1 = gр2S2h2 / S2
gp1h1 = gp2h2;
p1h1 = p2h2;
h2 = p1h1 / p2
h2 = 2.7 * 10 ^ 3 kg / m ^ 3 * 0.1 m / 8.9 * 10 ^ 3 kg / m ^ 3 = 0.03 m
Answer: 3 cm

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