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2 years ago

8

A Carnot engine is operated between two heat reservoirs at temperatures of 520 K and 300 K. It receives heat from the 520 K rese

rvoir and discards heat to the 300 K reservoir in each cycle. What is the thermal efficiency of the engine?

1 answer:

Igoryamba2 years ago

7 0

Answer:

Hook's law holds good up to. A elastic limit. B. plastic limit. C.yield point. D.Breaking point

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How to write the name (ELAF ADNAN) by using G-codes in milling machine ?? Please help

mel-nik [20]

Answer:

Simple G Code Example Mill - This is a very simple G code example for beginner level ... Run the program on your cnc machine (Safety first, keep a professional around). ... This G code program example don't use Tool radius compensation ...

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3 years ago

Kerosene flows through 3/4 standard type K drawn copper tube. The pressure drop measured at two points 50 m apart is 130 kPa. De

Anettt [7]

Answer:

$Q=4.98\times 10^{-3}\ m^3/s$

Explanation:

Given that

L= 50 m

Pressure drop = 130 KPa

For Copper tube is 3/4 standard type K drawn tube

Outside diameter=22.22 mm

Inside diameter=18.92 mm

Dynamic viscosity for kerosene

$\mu =0.00164\ Pa.s$

Pressure difference given as

$\Delta P=\dfrac{128\mu QL}{\pi d_i^4}$

Where

L is length of tube

μ is dynamic viscosity

Q is volume flow rate

d is inner diameter of tube

ΔP is pressure drop

Now by putting the values

$\Delta P=\dfrac{128\mu QL}{\pi d_i^4}$

$130\times 1000=\dfrac{128\times 0.00164\times 50\times Q}{\pi\times 0.0189^4}$

$Q=4.98\times 10^{-3}\ m^3/s$

So flow rate is $Q=4.98\times 10^{-3}\ m^3/s$

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3 years ago

Shania has started a new job as an app developer. Her first task was to make an old designed for Android available on other plat

LuckyWell [14K]

The answer is here......

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2 years ago

Someone tell me the answer plz!!DONT be rude and just answer for points:)

Vedmedyk [2.9K]

Answer:

B

Explanation:

B

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2 years ago

Read 2 more answers

An example of organisms and energy crossing ecosystem boundaries.

aniked [119]

Good afternoon!

An example can be migrating salmon moving material across ecosystem boundaries.

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2 years ago