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Physics equations (pressure (pressure = force÷area, change in pressure =…
Physics equations
pressure
pressure = force÷area
change in pressure = height x density x gravity
astrophysics
orbital speed = 2 x π x orbital radius ÷ time period
velocity = 2 x π x radius÷ time period
circuits and power
current = voltage ÷ resistance
measurements
current = amps
voltage = volts
resistance = ohms
voltage = power÷ current
measurements
voltage = volts
power = watts
current = amps
density
density = mass ÷ volume
measurements
density = kg/m2
refraction
refractive index = sin i ÷ sin r
measurements
(i and r) = degrees
Index = no measurement
waves
frequency = velocity ÷ wavelength
measurements
frequency = Hz
velocity = cm/s
wavelength = cm