Question: A person is diving in a lake in the depth of h = 7.5 m. The density of the water is ? = 1.0 x103 kg/m3. The pressure of the atmosphere is P0 = 1.0 x 105 Pa. The surface area of the top of the person's head is A = 0.0385 m2.
Randomized Variables
h = 7.5 m
A = 0.0385 m2
Part (a) Express the absolute pressure at the depth of h, P, in terms of P0, ?, and h.
Part (b) Calculate the numerical value of P in Pa. P =
Part (c) Express the magnitude of the force exerted by water on the person's head F at the depth h in terms of P and A. 25% Part (d) Calculate the numerical value of F in N.