Atraditional unit of length in japan is the ken (1 ken = 1.97 m). what is the volume of a cylindrical water tank of height 5.86 kens and radius 3.25 kens in (a) cubic kens and (b) cubic meters

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Explain why you think this diagram shows what happened to the carbon in the biodome.