An object of mass 100 g has a volume of $20 g c m^{- 3}$ . Calculate the density of the object. State whether the object will float or sink in water.

$5.0 g c m^{- 3}, s i n k$

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$2.0 g c m^{- 3}, f l o a t$

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$5 g c m^{- 3}, f l o a t$

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$1.0 c m^{- 3}, s i n k$

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Solution

The correct option is A
$5.0 g c m^{- 3}, s i n k$

Density of object $= \frac{m a s s}{v o l u m e} = \frac{100 g}{20 c m^{3}}$
$= 5 g / c m^{3}$

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An object of mass 100 g has a volume of 20 g cm−3. Calculate the density of the object. State whether the object will float or sink in water.

The correct option is A 5.0 g cm−3, sink Density of object =massvolume=100 g20 cm3 =5 g/cm3

An object of mass 100 g has a volume of $20 g c m^{- 3}$ . Calculate the density of the object. State whether the object will float or sink in water.

The correct option is A
$5.0 g c m^{- 3}, s i n k$

Density of object $= \frac{m a s s}{v o l u m e} = \frac{100 g}{20 c m^{3}}$
$= 5 g / c m^{3}$