A cube of 8.5 cm on each side has a mass of 0.65 kg. Will cube float or sink in water and why
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The cube will sink because weight of cube is greater than buoyant force.
Explanation:
=> It is given that,
Mass of a cube = 0.65 kg
length of a side, l = 8.5
=> Volume of cube, V:
V = l³
= (8.5)³
= 614 cm³
= 614 * 10⁻⁶ m³
=> Weight of cube, Wc :
Wc = mass * gravity
= 0.65 kg * 9.8 m/s²
= 6.37 N
=> Buoyant force on cube when it is fully immersed in water, Fb:
Fb = ρ * V * g
= 10³ kg/m³ * 614 * 10⁻⁶ m³ * 9.8 m/s²
= 6 N
Here, weight of cube is greater than buoyant force.
Thus, the cube will sink.
Learn more:
Q:1 Why objects float or sink when placed on the surface of water?Explain all the factors.
Click here: https://brainly.in/question/834541
Q:2 What is meant by buoyancy? why does an object float or sink when placed on surface of a liquid?
Click here: https://brainly.in/question/2121696
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