(THIS SAME QUESTION ON CHEGG IS INCORRECT SO PLEASE DONT COPY AND PASTE THAT ANS

Question

(THIS SAME QUESTION ON CHEGG IS INCORRECT SO PLEASE DONT COPY AND PASTE THAT ANSWER!-ALREADY HAPPENED ONCE. I'D APPRECIATE ANY AND ALL HELP!)

An old story tells of a Dutch boy who used his fist to plug a 2.0-cm-diameter hole in a dike that was3.0 m below sea level, thus preventing the flooding of part of Holland. The atmospheric pressure is 1.0×105N/m2.

Part B

Determine the pressure in the water at the location of the hole.

Part C

Determine the force exerted on the boy's fist by the water.

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

Here ,

Po = 1 *10^5 N/m^2

depth , d = 3 m

part B)

Pressure at the bottom = Po + p*g*h

Pressure at the bottom = 1 *10^5 + 1000 * 9.8 * 3

Pressure at the bottom = 1.294 *10^5 N/m^2

the Pressure at the bottom is 1.294 *10^5 N/m^2

part C)

force = pressure * area

force = 1.294 *10^5 * pi*(0.02/2)^2

force = 40.64 N

the force acting on boy's fist is 40.64 N

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