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1. The fact that an increase of pressure on an enclosed fluid is transmitted uniformly throughout the fluid is------------- law.

2. A hydraulic jack is used to lift a load of weight 1000N. The load-bearing cylinder has a radius of 4cm, and the other piston has a radius of 1cm. what force must be exerted on the smaller piston to support the load? show calculation.

3. If the atmospheric pressure is 1.1Af-10 raise to the power 5 Pa, the corresponding downward force on the top of a horizontal square areas 6cm on each side is approximately. show calculation.

4. A gas initially is at a pressure of 100Pa. If it's volume is halved while the absolute temperature is kept constant the new pressure will be --------------kpa. Explain your answer by using the appropriate law (formula).

5. A gas originally occupies a volume of 0.5m cube at a pressure of 100kpa. It is slowly allowed to expand until the volume is 2.5m cube. Assuming the temperature is kept constant, the final pressure will be: show calculation.

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