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ioda
2 years ago
7

If 167 cm2 of leather is stitched together to make a baseball, what is the radius of the baseball?

Chemistry
1 answer:
Lubov Fominskaja [6]2 years ago
3 0

The radius of the baseball is 3.65 cm

<h3>Mensuration</h3>

From the question, we are to calculate the radius of the baseball.

A baseball is spherical.

From the given information,

167 cm² of leather is stitched together to make a baseball. This means the surface area of the spherical baseball is 167 cm².

From the formula for calculating the surface area of a sphere,

S.A = 4\pi r^{2}

Where r is the radius of the sphere

Then, we can write that

167 = 4 \pi r^{2}

r^{2} =\frac{167}{4\pi}

r^{2} = 13.2894

Then,

r = \sqrt{13.2894}

r = 3.65 \ cm

Hence, the radius of the baseball is 3.65 cm

Learn more on mensuration here: brainly.com/question/10171109

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Answer:

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Explanation:

Hello there!

In this case, according to the concept of mole, which stands for the amount of substance, we can recall the concept of Avogadro's number whereby we understand that one mole of any substance contains 6.022x10²³ particles, for the given atoms of sodium, we can calculate the moles as shown below:

7.9x10^{23}atoms*\frac{1mol}{6.022x10^{23}atoms} \\\\

Thus, by performing the division we obtain:

12.7molNa

Regards!

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2 years ago
In the balanced chemical reaction for the combustion of acetylene (used in welding torches), determine at standard temperature a
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Explanation:

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How many atoms of manganese are in 1.00 g?
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Answer:

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8 0
2 years ago
Read 2 more answers
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