Question

hydraulic pipe where pistons are circular and the r the large 2m and the r small is 0.2m. fluid is h2o.

1. smaller 1kg and larger weighs 100kg, what is ∆h?

2. placed a wood on the large(m=1500kg), how much force is u needed to for small to have the same ∆h as in 1?

3. removed the wood and the small from the tube and apply same force from 2 above on the large, what speed would the water shoot from the now open tube? ∆h = 0 and no resistance.

Answer #1

**Part 1)** The pressure difference is given by

**Part 2)** As
in case one so

**Part 3)** Using conservation of energy, pressure
energy per unit volume is equal to the kinetic energy per unit
volume.

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