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Koborl
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Homework Statement
1. a 300kg object is placed upon a block of ice what volume of ice is needed to keep the object fully above water.
2. if the object density is .94gcm ^-3 what volume of the object remains above water on ice half the size.
3. What volume of the object remains above water when the ice is fully melted.
p(water) = 1gcm^-3
p(ice) = 0.92 gcm^-3
Homework Equations
B = mfgV = m/p
The Attempt at a Solution
1.
v= volume of water displaced
(denstiy of water)1000 kg/m^3* v = 300(weight of object)+ (denstiy ice)920 kg/m^3 *v
80 kg/m^3 v = 300
v = 3.75 m^3
2. ?
3. 6% of the object remains above water because buoyancy is .94 and water is 1?
V = m/p
p = 0.94 g/cm3
M = 300 kg = 300000g
V = 0.31914893617021 m^3
V above water = .01914m^3
I'm fairly sure I've got question 3 all wrong though :(
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