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3 years ago

Assuming the system is in equilibrium, calculate the missing distance d

Physics

1 answer:

zysi [14]3 years ago

3 0

Answer:

Explanation:

Taking torque about the fulcrum of all forces , for rotational equilibrium ,

6 x 5 + 2 x ( 7-5 ) = 10 x d

= 30 + 4 = 10 d

d = 3.4 m .

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2 years ago

Calculate the root mean square velocity of the nitrogen molecules, in meters per second (m/s). Do not include the unit of measur

kipiarov [429]

This question involves the concepts of average kinetic energy and velocity.

Complete question: Calculate the root mean square velocity of the nitrogen molecules, at 25°C, in meters per second (m/s). Do not include the unit of measure in your answer.

The root mean square velocity of the nitrogen molecule at 25°C is "727.66 m/s".

The average kinetic energy of gas molecules is given by the following formula:

$K.E=\frac{3}{2}KT$

Also,

$K.E = \frac{1}{2}mv^2$

Comparing both equations we get:

$\frac{3}{2}KT=\frac{1}{2}mv^2\\\\v=\sqrt{\frac{3KT}{m}}$

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Therefore,

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Learn more about the root mean square velocity here:

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