A simple pendulum with length L is swinging freely with
1 answer:
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Answer:
U = 25 J
Explanation:
The energy in a set of charges is given by
U =
in this case we have three charges of equal magnitude
q = q₁ = q₂ = q₃
with the configuration of an equilateral triangle all distances are worth
d = a
U = k ( )
we substitute
15 = k q² (3 / a)
k q² /a = 5
For the second configuration a load is moved to the measured point of the other two
d₁₃ = a
The distance to charge 2 that is at the midpoint of the other two is
d₁₂ = d₂₃ = a / 2
U = k (\frac{q_1q_2}{ r_1_2 } + \frac{q_1q_3}{r_1_3} + \frac{q_2q_3}{r_2_3})
U = k q² ( )
U = (kq² /a) 5
substituting
U = 5 5
U = 25 J
Answer:
U = 9253.6 J
Explanation:
It is given that,
Heat transferred in isochoric process,
Pressure in this process,
In the second step,
It is subjected to isobaric compression until its volume decreases by, (it decreases)
Heat transferred out of the gas,
In isochoric process, work done by the gas is zero as in this type volume is constant,
According to first law of thermodynamics,
.............(1)
In isochoric compression,
Let U is the total change in the internal energy of this gas. So,
U = 9253.6 J
So, the total change in the internal energy of this gas is $$9253.6 J. Hence, this is the required solution.