A water line enters a house 2.0 m below ground. A smaller diameter pipe carries water to a faucet 5.0 above ground on the second floor. Water flows at 2.0 m/s in the main line and at 7.0 m/s on the second floor. Take the density of water to be 1.0 × 103kg/m3. Find the difference in pressure between the main line and the second floor.
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