Explanation:
I believe <u>f</u><u>i</u><u>l</u><u>m</u><u> </u><u>i</u><u>s</u><u> </u>not part of a circuit
<u>Given data</u>
Determine Internal energy of gas N₂, (U) = ?
Temperature (T) = 25° C
= 25+273 = 298 K,
Gas constant (R) = 8.31 J/ mol-K ,
Number of moles (n) = 3 moles,
<u>Internal energy of N₂ </u>
Internal energy is a property of thermodynamics, the concept of internal energy can be understand by ideal gas. For example N₂, the observations for oxygen and nitrogen at atmospheric temperatures, f=5, (where f is translational degrees of freedom).
So per kilogram of gas,
The internal energy (U) = 5/2 .n.R.T
= (5/2) × 3 × 8.31 ×298
= 18572.85 J
<em>The internal energy of the N₂ is 18,572.85 J and it is approximately equal to 18,600 J given in the option B.</em>
The question is incomplete. The complete question is :
Assume that the energy lost was entirely due to friction and that the total length of the PVC pipe is 1 meter. Use this length to compute the average force of friction (for this calculation, you may neglect uncertainties).
Mass of the ball : 16.3 g
Predicted range : 0.3503 m
Actual range : 1.09 m
Solution :
Given that :
The predicted range is 0.3503 m
Time of the fall is :
...........(i)
...........(ii)
Dividing the equation (ii) by (i)
∴ 
Now loss of energy = change in the kinetic energy
![$W=\frac{1}{2} m [v_0^2-v_1^2]$](https://tex.z-dn.net/?f=%24W%3D%5Cfrac%7B1%7D%7B2%7D%20m%20%5Bv_0%5E2-v_1%5E2%5D%24)
![$W=\frac{1}{2} \times (16.3 \times 10^{-3}) \times [v_0^2-\left(\frac{v_0}{3.11}\right)^2]$](https://tex.z-dn.net/?f=%24W%3D%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%20%2816.3%20%5Ctimes%2010%5E%7B-3%7D%29%20%5Ctimes%20%5Bv_0%5E2-%5Cleft%28%5Cfrac%7Bv_0%7D%7B3.11%7D%5Cright%29%5E2%5D%24)
If f is average friction force, then
(f)(L) = W
(f) (1) = 
(f) =
Answer:
Explanation:
For the problem, we should have same reynolds number
ρvd/mu = constant
1000×1×10⁻³×0.3×10⁻³/1.002×10⁻³ = 1400×0.5×d/600
d = 25.66 cm
