Equations Flashcards by Romi Ayo-Yusuf

Q

Fluid Pressure

A

𝑃 = 𝜌𝑔ℎ

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Q

Elastic potential energy (Joules)

A

= ½Fx= ½kx^2

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Q

Intensity

A

I=P/A

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Q

Second harmonic

A

𝜆 = L
𝑓 =c/2L

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Q

Both ends closed air column

A

L=n𝜆 /2
𝑓=nv/2L

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Q

Wave speed

A

V= fλ

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Q

Fundamental

A

𝜆 = 2𝐿
𝑓 =c/2L

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Q

Third harmonic

A

𝜆 =2L/3
𝑓=3c/2L

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Q

One end open air column

A

L=n𝜆 /4
𝑓=nv/4L

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Q

Both ends open air column

A

L=n𝜆 /2
𝑓=nv/2L

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Q

Slit separtion

A

𝜆 =𝑎𝑥/D

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Q

Order of Diffraction

A

𝑑 𝑠𝑖𝑛θ=𝜆n

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Q

Linear speed

A

𝑉𝑡 = 𝑟ω

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Q

Centripetal acceleration

A

a=v^2/r=rω^2

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Q

Gravitational Force

A

𝐹 =𝐺𝑚𝑚/𝑟^2

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Q

Centripetal force

A

mv^2/r=mrω^2

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Q

Gravitational field strength

A

g=𝐺𝑚/𝑟^2

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Q

Gravitational potential

A

ɸ=-Gm/r

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Q

Gravitation Potential energy

A

GPE=Gmm/r

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Q

Energy=mcθ

A

=mcθ= mL

Q

Pressure volume equation

A

pV=nRT=NkT

Q

Kinetic energy

A

3/2kT

Q

Internal energy

A

𝛥U=𝑞 + W

Q

Total energy of a system

A

½ m ω^2 x^2

Q

Electric Field strength

A

E=F/q

Q

Electric Field strength

A

V/d

Q

Electrostatic force

A

Q1Q2/4𝜋𝜀0𝑟^2

Q

Electric Field Strength

A

Q/𝜋𝜀0𝑟^2

Q

Electric Potential

A

Q/4𝜋𝜀0r

Q

Electric Potential Energy

A

𝑄1𝑄2/4𝜋𝜀0r

Q

Capacitence

A

Q/V

Q

Energy stored in capacitor

A

1/2CV^2

Q

Time constant

A

RC

Q

Force(Magentic field)

A

F = BILsinθ= BQvsin θ

Q

Magentic Flux

A

BAcos θ

Q

Magnetic Flux Linkage

A

BANcosθ

Q

Photon energy

A

E=hf= Φ + 1/2mv^2=Difference between two energy levels (J)

Q

Momentum

A

E/c

Q

wavelength

A

h/p

Q

Energy

A

mc^2

Q

Activity

A

N/t =−𝜆N

Q

Half life

A

0 ⋅ 693/𝜆

Q

Number of nuclei

A

𝑁0𝑒^−𝜆t

Q

Acoustic impedance

A

Z=ρc

Q

Intensity(medical)

A

𝐼 = 𝐼0𝑒^−𝜇x

Q

Radiant Flux intensity

A

L/4𝜋𝑑^2

Q

Luminosity

A

4πr^2σT^4

Q

Velocity(astronomy)

A

H0Xd

Q

A