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3 years ago

8

the body Will remain at rest or move at constant velocity unless acted by external net force are unbalance force

1 answer:

Vikentia [17]3 years ago

4 0

Answer:

law of motion states that a body at rest remains at rest, or, if in motion, remains in motion at a constant velocity unless acted on by a net external force. This is also known as the law of inertia. Inertia is the tendency of an object to remain at rest or remain in motion.

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3 years ago

Read 2 more answers

The density of a solid cube is 678.2 kg/m^3. (Note that each edge is 4.8 cm in length and the mass is 75g.) When the cube is pla

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Answer:

Part a)

F = 0.735 N

Part b)

$percentage = 67.9%$

Explanation:

As we know that mass of the cube is given as

$M = \rho V$

$M = \rho a^3$

$M = (678.2) (4.8 \times 10^{-2})^3$

$M = 0.075 kg$

Now we know that cube is floating in the water

So net force due to weight of the cube must be counter balanced by buoyancy force on the liquid

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$F_b = mg$

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Part b)

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$F_b = \rho V g$

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3 years ago