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An aircraft component is fabricated from an aluminum alloy that has a plane-strain fracture toughness of 40 MPa1m (36.4 ksi1in.). It has been determined that fracture results at a stress of 300 MPa (43,

Pbalaga asked Jul 25, 2020

by Pbalaga

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4 votes

163k views

What is the thermal efficiency of this reheat cycle in terms of enthalpies?

Lucky Soni asked Jul 25, 2020

by Lucky Soni

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1 answer

1 vote

156k views

Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator.

Pompey Magnus asked Jul 24, 2020

by Pompey Magnus

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3 votes

200k views

What is the present value of the future receipts of $2,000, 5 years from now at 10% compounded annually?

GodinA asked Jul 24, 2020

by GodinA

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1 answer

4 votes

147k views

Natural Convection Cooling of an Orange. An orange 102 mm in diameter having a surface temperature of 21.1°C is placed on an open shelf in a refrigerator held at 4.4°C. Calculate the heat loss by natural

MeTitus asked Jul 24, 2020

by MeTitus

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1 answer

1 vote

230k views

Explain the following terms; i.Water content in air ii. Relative humidity iii. Enthalpy

Kishor Patil asked Jul 24, 2020

by Kishor Patil

4.7k points

1 answer

0 votes

174k views

A shaft of circular cross section (diameter = 3 in) is subjected to a bending moment of 3200 lb- ft. Determine the bending stress at the surface of the shaft.

Andras Dosztal asked Jul 24, 2020

by Andras Dosztal

5.8k points

1 answer

5 votes

160k views

Maximum iorsional shear siress.? Select one: a)- occurs at the center of a shaft. b)- occurs at the outer surface of a shaft c)- occurs at the inner surface of a shaft.

Bastiaan asked Jul 24, 2020

by Bastiaan

4.7k points

1 answer

2 votes

85.8k views

A 2 m3 rigid tank initially contains air at 100 kPa and 22 degrees C. The tank is connected to a supply line through a valve. Air is flowing in the supply line at 600 kPa and 22 degrees C. The valve is

Dan Bracuk asked Jul 24, 2020

by Dan Bracuk

4.6k points

1 answer

4 votes

217k views

Fluid flowing through a constriction or partially opened valve in a pipe system may develop localized low pressures due to increased velocity. If a pipe contains water at 210 °F, what is the minimum absolute

Stefan Steiger asked Jul 24, 2020

by Stefan Steiger

4.8k points

1 answer

3 votes

81.7k views

Joe has a set up in which the length of the load arm is 20cm and the length of the effort arm is 80cm. What is the mechanical advantage of the Jack?

Strapakowsky asked Jul 24, 2020

by Strapakowsky

5.6k points

2 answers

3 votes

101k views

The "Crawler" developed to transport the Saturn V launch vehicle from the assembly building to the launch pad is the largest land 6 vehicle ever built, weighing 4.9 x 10 -Ibs at sea level. a- What is its

Alix Lourme asked Jul 24, 2020

by Alix Lourme

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1 vote

143k views

What is the difference between available and unavailable energy?

Naqash Malik asked Jul 24, 2020

by Naqash Malik

4.4k points

1 answer

4 votes

36.8k views

A solar panel measures 80 cm by 50 cm. In direct sunlight, the panel delivers 4.8 A at 15 V. If the intensity of sunlight is 1 000 W/m2, what is the efficiency of the solar panel in converting solar energy

MarvinS asked Jul 24, 2020

by MarvinS

5.3k points

1 answer

5 votes

18.0k views

Describe the basic types of chips produced in metal-cutting operations.

Tushan asked Jul 24, 2020

by Tushan

5.8k points

1 answer

2 votes

27.8k views

What is the purpose of a weld symbol

Ojash asked Jul 23, 2020

by Ojash

5.2k points

2 answers

4 votes

141k views

Refrigerant-134a enters the compressor of a refrigeration system as saturated vapor at 0.14 MPa and leaves as superheated vapor at 0.8 MPa and 60°C at a rate of 0.054 kg/s. Determine the rates of energy

Tim Van Laer asked Jul 23, 2020

by Tim Van Laer

5.4k points

1 answer

0 votes

99.0k views

The composite wall of an oven consists of three materials, two of which are of known thermal conductivity, kA = 30 W/m·K and kC = 65 W/m·K, and known thickness, LA = 0.35 m and LC = 0.25 m. The third material,

Molenzwiebel asked Jul 23, 2020

by Molenzwiebel

5.3k points

1 answer

4 votes

137k views

What is the initial state of the compression process of your car?

Bojan Hrnkas asked Jul 23, 2020

by Bojan Hrnkas

5.0k points

1 answer

1 vote

127k views

What is the difference between backstopping and braking in terms of the applications in which they are used?

Abraham Tugalov asked Jul 23, 2020

by Abraham Tugalov

4.9k points

1 answer

1 vote

190k views

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