3 years ago

sprinters set in the starting blocks at the beginning of a race rely on what kind of energy conversion

1 answer:

8 0

<span>Earth's gravitational potential energy: GPE = mgh = Gravity (9.81m/s2) × Mass (kg) × Height (m)
it's k</span><span>inetic energy</span>

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If a 60-g object has a volume of 30 cm3, what is its density? 2 g/cm3 0.5 cm3/g 1800 g * cm3 none of the above

jasenka [17]

Answer : The density of an object is, $2g/cm^3$

Solution : Given,

Mass of an object = 60 g

Volume of an object = $30cm^3$

Formula used :

$\text{Density of an object}=\frac{\text{Mass of an object}}{\text{Volume of an object}}$

Now put all the given values in this formula, we get the density of an object.

$\text{Density of an object}=\frac{60g}{30cm^3}=2g/cm^3$

Therefore, the density of an object is, $2g/cm^3$

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2 years ago

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lidiya [134]

Answer:

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Explanation:

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2 years ago

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8_murik_8 [283]

The three isomers of pentane have different structural formulas.

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3 years ago

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Ethanol, 1-octanol, methanol and 3-methyl-1-butanol contain what functional group characteristics of all alchohols

Amiraneli [1.4K]

Answer:

The hydroxyl group

Explanation:

The molecular formulas of the above alcohols are

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The functional group that is characteristic of all alcohols is the hydroxyl group (-OH).

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