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Leokris [45]
3 years ago
10

When a second student joins the first, the height difference between the liquid levels in the right and left pistons is 40 cm .

What is the second student's mass?
Physics
1 answer:
vlada-n [284]3 years ago
8 0

Answer:

m = 56.5 kg

Explanation:

Since the addition of mass on one piston caused a change in pressure head at the other. Diameter of the piston calculated is used as 0.46 m

Δm*g / Area = p * g * Δh   ..... Eq1

m = \frac{p*h*A}{g}

m = \frac{850 * 0.4 * pi*0.46^2}{4*9.81}\\\\m= 56.5 kg

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