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80 kg on steep hill roc50⁰ to vertical Y equilibrium 40 vertical
6red/10blue × 2X/16total socks X=3/5×1/8 =3/40
Speed of light is 3x10^8 m/s and wavelength is 5.3*10^14, so you can use the equation v=lambda(frequency) to find the frequency, and use the speed of light for your velocity. Then just divide the width on your thumb by the wavelength
a. If the tube is moved by 0.1 m, r2 increases by 0.2m, so r2-r1 is now 0.1m. Therefore lambda is (2pi/0.8)(0.1)=2.5pi --> Intensity=I cos squared(2.5pi/2) You pretty much d that for each one and you get d>a=c>b
w=Δ°nRT so just find the change in mols from the equation.

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