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bagirrra123 [75]

3 years ago

7

What is the relationship between SI units and CGS unit of work ?

1 answer:

VashaNatasha [74]3 years ago

8 0

Work SI unit = joule = N*m= [kg]*[m/s^2] *[m] = kg * m^2/s^2

Work cgs unit = erg = [g][cm/s^2][cm] = g*cm^2 / s^2

Then 1 kg * m^2 / s^2 * [1000 g/kg] * [100cm/m]^2 = 10,000,000 g*cm^2/s^2

The relation is 1 joule = 10,000,000 erg or 1 erg = 10^-7 joule

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The density of the material would be
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Suppose that in a lightning flash the potential difference between a cloud and the ground is 0.96×109 V and the quantity of char

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(a) $2.98\cdot 10^{10} J$

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<h3><u>Answer;</u></h3>

= 0.0000001 mol/L

= 0.0000001 mol/L

= 1:1

<h3><u>Explanation;</u></h3>

What is the concentration of H+ ions at a pH = 7?

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pH=−log10[H+]

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[H+]=(10)^(-7)

<u>= 0.0000001 mol/L </u>

What is the concentration of OH– ions at a pH = 7?

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<u>= 0.0000001 mol/L </u>

What is the ratio of H+ ions to OH– ions at a pH = 7?

1:1

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