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FromTheMoon [43]
3 years ago
15

Two parallel Rivers (A and B) are separated by confined and unconfined aquifer estimate the RATE of seepage of river A to River

B per unit length of the rivers
Engineering
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

Explanation:

A confined aquifer is one that's impermeable and does not allow seepage's  of water through it.

An unconfined aquifer is a body of water that has permeable membranes which allows passage of water through it.

There will be little or no transmission of water trough these bodies of water.

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A 5-mm-thick stainless steel strip (k = 21 W/m•K, rho = 8000 kg/m3, and cp = 570 J/kg•K) is being heat treated as it moves throu
Drupady [299]

Answer:

The temperature of the strip as it exits the furnace is 819.15 °C

Explanation:

The characteristic length of the strip is given by;

L_c = \frac{V}{A} = \frac{LA}{2A} = \frac{5*10^{-3}}{2} = 0.0025 \ m

The Biot number is given as;

B_i = \frac{h L_c}{k}\\\\B_i = \frac{80*0.0025}{21} \\\\B_i = 0.00952

B_i < 0.1,  thus apply lumped system approximation to determine the constant time for the process;

\tau = \frac{\rho C_p V}{hA_s} = \frac{\rho C_p L_c}{h}\\\\\tau = \frac{8000* 570* 0.0025}{80}\\\\\tau = 142.5 s

The time for the heating process is given as;

t = \frac{d}{V} \\\\t = \frac{3 \ m}{0.01 \ m/s} = 300 s

Apply the lumped system approximation relation to determine the temperature of the strip as it exits the furnace;

T(t) = T_{ \infty} + (T_i -T_{\infty})e^{-t/ \tau}\\\\T(t) = 930 + (20 -930)e^{-300/ 142.5}\\\\T(t) = 930 + (-110.85)\\\\T_{(t)} = 819.15 \ ^0 C

Therefore, the temperature of the strip as it exits the furnace is 819.15 °C

5 0
3 years ago
1. In a series circuit the sum of all voltage drops produced by the loads in the circuit
GarryVolchara [31]

Answer:

ik the answer but I'm busy rn

5 0
2 years ago
LUNES MARTES MIÉRCOLES JUEVES VIERNES SÁBADO DOMINGO
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Explanation:

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Thepotemich [5.8K]

Answer:

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Explanation:

Fluids has special properties that allow forces and pressure to be distributed evenly within them.

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  • Therefore, when pressure is applied to them, it permeates evenly on all parts.
  • Their ability to tend to randomness makes liquids and gases very viable for distributing pressure.
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3 years ago
Which type of engineers were the designers of the Great Pyramids of Egypt and the Great Wall of China?
Gemiola [76]
I think it’s structural engineers but still check with the others
8 0
3 years ago
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