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Fluid Mechanics > MAE 2315 Useful Values > Flashcards

MAE 2315 Useful Values Flashcards

1
Q

How do you convert from psi to psf?

A

Multiply by 144

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2
Q

How do you convert from psf to psi?

A

Divide by 144

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3
Q

What are the SI units for specific weight?

A

kN/m^3

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4
Q

What are the BG units for specific weight?

A

lb/ft^3

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5
Q

What is the unit for density in the BG system in terms of pounds?

A

lb *s^2/ft^4

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6
Q

What is the unit for density in the SI system?

A

kg/m^3

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7
Q

What is the definition of a slug in terms of Newton’s second law?

A

1 slug = lb * s^2 / ft

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8
Q

How do you convert between Fahrenheit and Rankine?

A

Add 459.67 to the Fahrenheit temperature

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9
Q

Give the definition of a Newton

A

1 N = kg*m/s^2

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10
Q

Give the definition of a Joule

A

1J = kg*m^2/s^2

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11
Q

Give the definition of a Watt

A

1W = 1 kg*m^2/s^3

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12
Q

Give the definition of a Pascal.

A

1 Pa = kg/m*s^2

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13
Q

What is the density and specific weight for water in the SI system respectively?

A

Density: 1000 kg/m^3

Specific Weight: 9.8 kN/m^3

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14
Q

What is the density and specific weight for water in the BG system respectively?

A

Density: 1.94 lb*s^2/ft^4

Specific Weight: 62.4 lb/ft^3

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15
Q

What is the density and specific weight for air in the SI system respectively?

A

Density: 1.23 kg/m^3

Specific Weight: 1.20E1 N/m^3

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16
Q

What is the density and specific weight for air in the BG system respectively?

A

Density: 2.38E-3 lb*s^2/ft^4

Specific Weight: 7.65E-2 lb/ft^3

17
Q

How do you convert between mph and ft/s?

A

Multiply the mph value by 1.467

18
Q

What is the gas constant R for air in the BG system?

A

53.3 (ft * lb) / (lbm * ºR)

19
Q

What is the gas constant R in EE units for air?

A

1716 (ft * lb) / (slug * ºR)

20
Q

What is the gas constant R in SI units for air?

A

286.9 J / (kg*K)

Fluid Mechanics (7 decks)

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