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# Assignment help 5832

What is the cross-section of the pipe at the constriction? Give your answer in cm2 and use 2 sf.

2) Calculate the pressure difference (Pin-Pout) no the roof of a flat topped house, assuming that the air inside is stationary, and the air outside is moving at 28.0 m/s. Take the density of air to be 1.3 kg/m3

3) I dive down to a depth 24.0metres beneath the surface of the ocean. Calculate the pressure in Pa at that depth, assuming the density of water is 1.0×103 kg/m3, and the air pressure at the surface is 101.1 kPa

4) A submarine dives down to a depth 5.0 metres beneath the surface of the ocean. Calculate the pressure in atmospheres at that depth, assuming the density of water is 1029 kg/m3, and the air pressure at the surface is 103.8 kPa

5) A force of 68.8 Newtons is exerted on a square of side 6.7 cm. Calculate the pressure in Pascals to 2 s.f.

6)A container of water, volume 8563 cm3 is filled from a water supply in 2.5 minutes. Calculate the volume flow rate in m3/s to 2 s.f.

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