3 years ago

If a ball speeds up as it is rolling down a hill, the forces acting on it must be -

Physics

1 answer:

VMariaS [17]3 years ago

3 0

Answer:

the forces acting on it must be strong because gravity is pushing the ball down

Explanation:

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A liquid solvent is added to a flask containing an insoluble solid. The total volume of the solid and liquid together is 84.0 mL

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The mass of solid is 173.45 g.

Explanation:

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Using formula of density

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$V_{l}=\dfrac{m_{l}}{\rho_{l}}$

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$V_{l}=30.63\ mL$

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Volume of solid = Total volume of solid and liquid- volume of liquid

$V_{s}=84.0-30.63$

$V_{s}=53.37\ mL$

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Using formula of density

$\rho_{s}=\dfrac{m_{s}}{V_{s}}$

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