1. A uniform pressure of 5.7 × 105 N/m2 is applied to all six sides of...

1. A uniform pressure of 5.7 × 10⁵ N/m² is applied to all six sides of a copper cube. What is the percentage change in volume of the cube?

2. A liquid (p = 1.65 g/cm³ ) flows through a horizontal pipe of varying cross-section as in Figure. In the first section, the cross-sectional area is 10.0 cm² , the flow speed is 275 cm/s, and the pressure is 1.20 x 10⁵ Pa. In the second section, the cross-sectional area is 2.50 cm² . Calculate the smaller section’s (a) flow speed and (b) pressure.

3. A hydraulic lift raises a 2 000-kg automobile when a 500-N force is applied to the smaller piston. If the smaller piston has an area of 10 cm² , what is the cross-sectional area of the larger piston?

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genius_generous answered 1 year ago

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