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KatRina [158]
4 years ago
6

Small pipes restrict water flow because of:

Physics
2 answers:
inysia [295]4 years ago
7 0
Answer: C. Internal Friction
barxatty [35]4 years ago
3 0

Answer:

The correct answer is internal friction.

Explanation:

The pressure drop that occurs in a small pipe is proportional to the velocity of the fluid and the length of the pipe section. While it is inversely proportional to the diameter.

This is because the friction between the fluid and the walls of the pipe is greater when the diameter is smaller, since the friction between the water and the walls of the pipe increases.

Have a nice day!

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a)  =4.84*10^{-12}

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d)= 0 and the direction of motion is equal to zero

Explanation:

a) compton shift

\Delta\lambda = \frac{h}{mc} (1-cos\theta)

\Delta\lambda = \frac{6.626*10^{-34}}{9.11*10^{-11}3*10^8} (1-cos180)

                        =4.84*10^{-12}

b) the new wavelength

\lambda' = 10.0*10^{-12} +4.84^10^{-12}

               =14.84*10^{-12} m

\Delta E = E' - E

              =hc[\frac{1}{\lambda'}-\frac{1}{\lambda}]

\Delta E = 6.626*10^{-34}*(3*10^8)[\frac{1}{14.84*10^{-12}}-\frac{1}{4.8*10^{-12}}]

= -2.76*10^{-14} J

C)By conservation of energy, the kinetic energy of recoiling electron is equal to the magnitude of energy between the photon energy

i.e -2.76*10^{-14} J

d) the angle between the positive direction of motion

sin\phy = \frac{\lambda_t sin\theta}{\lambda'}

            =\frac{2.43*10^{-12}sin180}{14.84*10^{-12}}  

             = 0

the direction of motion is equal to zero.

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4 years ago
PLS HELP PHYSICS
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