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A 2-m^3 rigid tank contains nitrogen gas at 500kPa and 300K. Now the gas is compressed isothermally to a volume of 0.1 m. The work done on the gas during this compression process is: (a) 950 kJ (b) 0 kJ

Farajnew asked Sep 10, 2020

by Farajnew

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1 answer

1 vote

108k views

You are in charge of ordering the concrete for a basement wall concrete pour. The wall forms are all set up and ready. The wall around the basement is 10 inches thick. The interior finished dimension of

Omar Himada asked Sep 10, 2020

by Omar Himada

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1 answer

0 votes

212k views

Explain two Types of bearing?

Cristobal Viedma asked Sep 10, 2020

by Cristobal Viedma

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1 answer

5 votes

100k views

A wall, 4x6 meters by 0.1m thick, experiences temperatures of 30°C on one side and 8°C on the other. The rate of heat transfer through the wall is 900 Watts. What is the thermal conductivity of the wall,

Kamokaze asked Sep 10, 2020

by Kamokaze

6.1k points

1 answer

2 votes

130k views

An automobile has a history of radiator leaks due to corrosion. The same car was found to have engine failure due to overheating that increased with the age of the vehicle. This is an example of: (a.)Classical

Mikaraento asked Sep 10, 2020

by Mikaraento

5.9k points

1 answer

4 votes

41.0k views

Consider a single bacterial cell as a discrete particle with a diameter of 1x10-6m and a specific gravity of 1.01. Assuming laminar flow conditions, calculate how long would it take for the cell the settle

Dmitry Frenkel asked Sep 9, 2020

by Dmitry Frenkel

5.9k points

1 answer

5 votes

160k views

A horizontal jet of water strikes a vertical surface on a stationary cart that has a mass of 2.8 kg. The jet has a mass flow rate of 0.13 kg/s. The force required to hold the cart in place is 8N. What

Richard Tingle asked Sep 9, 2020

by Richard Tingle

6.7k points

1 answer

3 votes

64.8k views

A single light window is designated 16 R UP . each riser is 6” high . What is the total rise of the stairs

Matthew Flaschen asked Sep 9, 2020

by Matthew Flaschen

6.3k points

1 answer

4 votes

123k views

When using the "method of joints" to solve a truss problem, by convention assume that any unknown member forces act in b Tension c. Torsion d. None of the above

Hovik Antanisyan asked Sep 9, 2020

by Hovik Antanisyan

6.1k points

1 answer

5 votes

77.1k views

What is refrigeration capacity and what is meant by a "ton" of refrigeration?

Scribe asked Sep 9, 2020

by Scribe

5.8k points

1 answer

3 votes

73.7k views

The cubic capacity of a four-stroke over-square spark-ignition engine is 245cc. The over-square ratio is (1.1) The clearance volume is 27.2cc. Caleulate the bore, stroke, and compression ratio of the engine.

Dunhamzzz asked Sep 9, 2020

by Dunhamzzz

5.4k points

1 answer

1 vote

180k views

Refrigerant-134a is throttled from the saturated liquid state at 700 kPa to a pressure of 157.38 kPa. Determine the temperature drop during this process and the final specific volume of the refrigerant.

Lightning asked Sep 9, 2020

by Lightning

6.5k points

1 answer

4 votes

94.9k views

What is the advantage to use a multistage compression refrigeration system over a single stage compression system?

Engie asked Sep 9, 2020

by Engie

6.0k points

1 answer

5 votes

99.7k views

Which of carbon will have higher strength but less ductility, 0.49% or 0.19%

Contrid asked Sep 9, 2020

by Contrid

5.8k points

1 answer

4 votes

234k views

Air with a mass flow rate of 2.3 kg/s enters a horizontal nozzle operating at steady state at 420 K, 350 kPa, and velocity of 3 m/s. At the exit, the temperature is 300 K and the velocity is 460 m/s. Using

Joseph Shih asked Sep 9, 2020

by Joseph Shih

5.4k points

2 answers

5 votes

164k views

Water flows in a 6-m-wide rectangular channel with a depth of 0.55 m and a flow rate of 12 m3/s. Determine the critical depth of the flow. Express your answer in m.

James Skemp asked Sep 9, 2020

by James Skemp

6.6k points

1 answer

0 votes

188k views

Carnot heat engine A operates between 20ºC and 520ºC. Carnot heat engine B operates between 20ºC and 820ºC. Which Carnot heat engine is more efficient than the other.

Cwillinx asked Sep 9, 2020

by Cwillinx

5.5k points

1 answer

0 votes

96.5k views

Technician A says that a 12 Volt light bulb that draws 12 amps has a power output of 1 watt. Technician B says that a motor that has 1 ohm of resistance has a power rating of 144 watts of it is connected

Rouhollah Mazarei asked Sep 8, 2020

by Rouhollah Mazarei

5.8k points

1 answer

1 vote

20.6k views

When a specific property is multiplied by the mass of the system the results is always an intensive property. a)True b) False

Nithin R asked Sep 8, 2020

by Nithin R

5.4k points

1 answer

5 votes

102k views

A strip ofmetal is originally 1.2m long. Itis stretched in three steps: first to a length of 1.6m, then to 2.2 m, and finally to 2.5 m. Compute the true strain after each step, and the true strain for

Mgfernan asked Sep 8, 2020

by Mgfernan

5.6k points

1 answer

5 votes

101k views

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