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3 years ago

Calculate the root mean square velocity of nitrogen molecules at 25 C.

1 answer:

4 0

root mean square<span>= square root of ( 3RT/M)

R = 8.314 J/K/mole
T = 25 + 273 = 298 K
M = molecular mas of N2 in kg = 28 X 10^-3 kg

put values...

</span><span> root mean square</span> = square root of ( 3 X 8.314 X 298/28 X 10^-3)
= square root of ( 265454.143)
= 515.2 m/s
so option A is right
hope this helps

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In the most common form of lightning, electric charges flow between the ground and a cloud. The flow changes dramatically over s

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Answer:

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3 years ago

When three people with a total mass of 2.00 x 102 kg step into their 1.200 x 103 kg car, the car’s

Aleksandr-060686 [28]

Answer:

$k = 457333.3 N/m$

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Explanation:

From the question we are told that

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Generally the spring constant is mathematically represented as

$k = \frac{F}{x}$

Here F is the force exerted by the mass of three people and that of the car , this is mathematically represented as

=> $F = (M +m_c) *g$

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=> $k = 457333.3 N/m$

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=> $F_a = (m +m_c) *g$

=> $F_a = (3.00*10^{3} + 1.200 *10^{3}) * 9.8$

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3 years ago

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nika2105 [10]

Answer:

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Explanation:

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