Physics formulae

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32 Terms

1
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Density

roe=m/v

2
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speed

v=s/t

3
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acceleration

(u-v)/t

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force

f=ma

5
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momentum

p=mv

6
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impulse

imp=ft

7
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moment

moment=force*distance

8
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spring

f=kx

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pressure

p=f/A

10
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pressure in liquid

p=roegh

11
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temperature

kelvin=+273

12
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compressing gases

p1v1=p2v2

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work done

Wd=fd

14
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kinetic energy

1/2*m*v²

15
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GPE

mgh

16
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specific heat capacity

e=mct

17
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power

wd/t

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waves

v=fl

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frequency

1/period

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refractive index

n=sinI/sinR

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critical angle

sinC=1/n

22
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charge and current

Q=it

23
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resistance current

v=i/r

24
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electrical power

p=VI=I²R=v²/R

25
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electrical energy

e=vit

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transformers

V2/V1=N2/N1

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weight

w=mg

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efficiency

(useful/total)*100

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resistance in series

R1+R2+….

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resistance in parallel

1/R1 + 1/R2 …

31
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hubble constant

v/d = 2.3×10^-18 /s

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age of universe

d/v = 1/hubble constant