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mistax
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Homework Statement
You are given a 10cm Cube of aluminum with Density of 2700kg/m is submerged in water and the weight in water is 13N. If a cavity exist how big is it?
Homework Equations
The equation i used were B = V * P_water * g to find buoyancy.
To find the enclosed cavities i used V_0 = V - V_c = B/(p_water * g) - W/(p_m*g)
The Attempt at a Solution
for B i did volume of the cube was .1^3 * 1000KG/M for water * 9.8
and then when plugging into the equation for enclosed cavities i got
9.8/(9.8 * 1000kg/m) - 13N/(2700KGM * 9.8)
from there i got stuck since i got a number that was really small.