- #1

mirandasatterley

- 62

- 0

I'm notsure if it's right, but so far I have:

the buoyancy force = the gravitational force.

B = (density(fluid))(g)(V(object))

Fg = m(object)g = (density(object))(V(object))(g)

Setting them equal,

d(fluid)gV(object) = d(object)V(object)g

I was then thinking that V(object) = 4/3(pi)(r^3), sothat i can solve for the radius of the object.

I'm unsure of how to solve for the radius because the V of water is unknown, and I don't know any other equations that i can use to solve it. I'm also unsure of how to incorperate the radius of the cavity in part b. Would it just be r(found in part a)-r(cavity)