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CONCEPT

27

Equations and Fundamental

Concepts

Simple Harmonic Motion and Wave Motion

T= 1 /f

Ts p= 2 π

√

m

k

v=λf

TP= 2 π

√

L

g

fn=

nv

2 L

nodes at both ends

fn=

nv

4 L

(n is odd)node at one end

fbeat=|f 1 −f 2 |

vsound=343 m/s (in air at 20 C )

A note: 440 Hz

C note: 524 Hz

D note: 588 Hz

E note: 660 Hz

G note: 784 Hz

Fluids and Thermodynamics

3 / 2 kT=<

1

2

mv^2 >avg

P=F/A

P=P 0 +ρgh

4 P+ 4 (ρgh)+ 4

(

1

2

ρv^2

)

= 0

φ=A·v

◦C=◦K+ 273. 15