Exam3 Flashcards by Rebekah Anderson

Q

W=mg=

A

pobVobg

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Q

Specific gravity

A

X1000= density of fluid

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Q

pobj/pfluid=

A

Fraction of volume submerged

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Q

Tf=

A

9/5 Tc +32

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Q

Frequency

A

Rotations per second

Hz

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Q

Period

A

Time period for one rotation

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Q

Q

A

Heat energy

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Q

Q (temp change)=

A

mc/\T

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Q

Q (phase change)=

A

+-mL

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Q

tnet=

A

Fr+F2r2…

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Q

Torque force must be…

A

Perpendicular

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Q

Pressure unit

A

N/m:Pa

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Q

Density unit

A

Kg/m3

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Q

Volume of a sphere

A

4/3 pi r^3

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Q

N=

A

of particles (molecules, atoms,etc)

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Q

Shear modulus

A

Parallel force:

F/A= S(/\x/h)

Q

Surface area of cylinders side?

A

2pirh

Q

Xcg(center of gravity)=

A

Sum of xm divided my sum of masses

X is distance from pivot to individual centers of gravity.

Q

Newton’s second law

A

A=F/m

Q

Stress

A

Force per unit area causing deformation

Q

Strain

A

Measure of deformation

Q

Top of wheel

A

2V= 2wR

Q

Center of wheel

A

V=we

Q

Bottom of wheel

A

V=0

Q

Rolling=

A

Combination of translational and rotational motion

Q

If fluid is at rest

Same depth=

A

Same pressure

Q

Ideal gas

Eth=

A

Sum of KE of individual atoms/molecules..

Q

Temperature

A

Translational KE

Q

Internal energy

A

Sum of all energies KEtrans, KErot, PE…

Q

Specific heat

A

Energy to raise 1 kg °C

Q

calorie

A

Energy to raise 1g of water 1°C

Q

s–>g

A

Sublimation

Q

g–>s

A

Deposition

Q

Totally submerged object

A

Vobj=Vfluid