What is one thing in common with magnetic force?
1 answer:
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Answer:
Explanation:
Given
angular velocity
Combined moment of inertia of stool,student and bricks
Now student pull off his hands so as to increase its speed to suppose rev/s
After Pulling off hands so final moment of inertia is
Conserving angular momentum as no external torque is applied
Answer : The value of is 286.2 J and 286.2 J respectively.
Explanation : Given,
Moles of sample = 0.877 mol
Change in temperature = 15.7 K
First we have to calculate the heat absorbed by the system.
Formula used :
where,
q = heat absorbed by the system = ?
n = moles of sample = 0.877 mol
= Change in temperature = 15.7 K
= heat capacity at constant volume of
(diatomic molecule) =
R = gas constant = 8.314 J/mol.K
Now put all the given value in the above formula, we get:
Now we have to calculate the change in internal energy of the system.
As we know that, work done is zero at constant volume. So,
Therefore, the value of is 286.2 J and 286.2 J respectively.