3 years ago

Jan is 5.2 ft tall, and has a shadow that is 7 ft long. If there is another person next to Jan that has

Mathematics

1 answer:

Naddika [18.5K]3 years ago

4 0

Around 5.9 since if u divide 5.2 by 7 it would .74 just multiply that by 7 and round ur answers.

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3 years ago

Nitric acid (specific gravity 1.42) costs $51.95 per liter. A student spills 5.112 kg of nitric acid in the laboratory, what is

Leno4ka [110]

Answer:

The cost of wasted nitric acid is $187.02

Step-by-step explanation:

Since it is given that specific gravity of Nitric Acid is 1.42 Thus the density of nitric acid is

$\rho _{acid}=S.G\times \rho _{water}\\\\\\\rho_{acid}=1.42\times 1\frac{g}{cm^3}\\\\\rho_{acid}=1.42g/cm^3$

Now from the basic relation of mass volume and density we have

$\rho =\frac{Mass}{Volume}\\\\\therefore Volume=\frac{Mass}{\rho }$

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Thus the volume of nitric acid is

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Thus the calculated volume in liters is

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3 years ago