Exam3

Question 1

W=mg=

Answer 1

pobVobg

Question 2

Specific gravity

Answer 2

X1000= density of fluid

Question 3

pobj/pfluid=

Answer 3

Fraction of volume submerged

Question 4

Tf=

Answer 4

9/5 Tc +32

Question 5

Frequency

Answer 5

Rotations per second

Hz

Question 6

Period

Answer 6

Time period for one rotation

Question 7

Q

Answer 7

Heat energy

Question 8

Q (temp change)=

Answer 8

mc/\T

Question 9

Q (phase change)=

Answer 9

+-mL

Question 10

tnet=

Answer 10

Fr+F2r2…

Question 11

Torque force must be…

Answer 11

Perpendicular

Question 12

Pressure unit

Answer 12

N/m:Pa

Question 13

Density unit

Answer 13

Kg/m3

Question 14

Volume of a sphere

Answer 14

4/3 pi r^3

Question 15

N=

Answer 15

of particles (molecules, atoms,etc)

Question 16

Shear modulus

Answer 16

Parallel force:

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

Question 17

Surface area of cylinders side?

Answer 17

2pirh

Question 18

Xcg(center of gravity)=

Answer 18

Sum of xm divided my sum of masses

X is distance from pivot to individual centers of gravity.

Question 19

Newton’s second law

Answer 19

A=F/m

Question 20

Stress

Answer 20

Force per unit area causing deformation

Question 21

Strain

Answer 21

Measure of deformation

Question 22

Top of wheel

Answer 22

2V= 2wR

Question 23

Center of wheel

Answer 23

V=we

Question 24

Bottom of wheel

Answer 24

V=0

Question 25

Rolling=

Answer 25

Combination of translational and rotational motion

Question 26

If fluid is at rest

Same depth=

Answer 26

Same pressure

Question 27

Ideal gas

Eth=

Answer 27

Sum of KE of individual atoms/molecules..

Question 28

Temperature

Answer 28

Translational KE

Question 29

Internal energy

Answer 29

Sum of all energies KEtrans, KErot, PE…

Question 30

Specific heat

Answer 30

Energy to raise 1 kg °C

Question 31

calorie

Answer 31

Energy to raise 1g of water 1°C

Question 32

s–>g

Answer 32

Sublimation

Question 33

g–>s

Answer 33

Deposition

Question 34

Totally submerged object

Answer 34

Vobj=Vfluid