Soli

w=Δ°nRT so just find the change in mols from the equation.

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

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

6red/10blue × 2X/16total socks X=3/5×1/8 =3/40

80 kg on steep hill roc50⁰ to vertical Y equilibrium 40 vertical