Water leaks from a hole in a water tank which is a distance \"h\" meters below t

Question

Water leaks from a hole in a water tank which is a distance "h" meters below the surface of the water which is H meters deep. The velocity of the water just leaving the hole is: Show work for full credit 2gh g/h squareroot gh/s squareroot 3gh squareroot 2 gh When a family of four with a total mass of 650 kg step into their 1200-kg car, the car's springs compress 1.3 cm. What is the spring constant of the car's springs in N/m, assuming they act as a single spring? 12 Times 10^2 50 Times 10^3 49 Times 10^4 90 Times 10^4 14 Times 10^5

Explanation / Answer

8) Applying Bernoulli equation at the surface of water and the hole, we get,

Po + 0 + h = Po + v2/2 + 0

=> v = (2gh)1/2

9) kx = mg

=> k = mg/x = 650 * 9.81 / 0.013 = 49 * 104 N/m

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