When the body said to be in equilibrium
2 answers:
You might be interested in
Answer:
The work and heat transfer for this process is = 270.588 kJ
Explanation:
Take properties of air from an ideal gas table. R = 0.287 kJ/kg-k
The Pressure-Volume relation is <em>PV</em> = <em>C</em>
<em>T = C </em> for isothermal process
Calculating for the work done in isothermal process
<em>W</em> = <em>P</em>₁<em>V</em>₁
= <em>mRT</em>₁ [∵<em>pV</em> = <em>mRT</em>]
= (5) (0.287) (272.039)
= 270.588 kJ
Since the process is isothermal, Internal energy change is zero
Δ<em>U</em> =
From 1st law of thermodynamics
Q = Δ<em>U </em>+ <em>W</em>
= 0 + 270.588
= 270.588 kJ
Answer:
at
Explanation:
We need to calculate the components of the resultant force on both the x (horizontal) and y (vertical) direction.
Components of the first force F1:
Components of the second force F2:
So the components of the resultant force are
So the magnitude of the resultant force is
And the direction is
The magnitude of the acceleration can be found by using Newton's second law:
while the direction is the same as the resultant force, .