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3 years ago

5

A car is traveling at 20 meters/second and is brought to rest by applying brakes over a period of 4 seconds.What is its average

acceleration over this time interval?

1 answer:

IRISSAK [1]3 years ago

5 0

Answer: Its acceleration is -5 meters/second2.

Explanation:

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3 years ago

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Determine the mass of SO₂ that contains 6.075 × 10^26 S atoms.

Misha Larkins [42]

Avogadro's law states that in a mole of any substance, there are $6.022 \times 10^{23}$ atoms. This means that in the given sample, there are

$\frac{6.075 \times 10^{26}}{6.022 \times 10^{23}}=1008.8010627 \text{ mol}$

The atomic mass of sulfur is 32.06 amu.
The atomic mass of oxygen is 15.9994 amu.

So, the atomic mass of sulfur dioxide is

$32.06+2(15.9994=64.0588 \text{ g/mol}$

Therefore, the mass is:

$(64.0588)(1008.8010627)=\boxed{64620 \text{ g (to 4 sf)}}$

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2 years ago

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A bond exists between A and B in the compound AB. A and B are sharing electrons. The type of bond is

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