Wednesday
September 2, 2015

Homework Help: physics

Posted by Kelsey on Saturday, April 17, 2010 at 3:03pm.

A rubber ball filled with air has a diameter of 25.1 cm and a mass of 0.618 kg. What force is required to hold the ball in equilibrium immediately below the surface of water in a swimming pool?


I tried using the equation
B = density(fluid)volume(object)g
B = 1.0E3(4/3(pi)(.1255^3))(9.8)

and I got 81.14 and it says that I am off by 10% so I know I am close...but I can't get it to accept my answer.

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