A lithium atom has mass 1.17×10−26kg, and a hydrogen atom has mass 1.67×10−27kg. The equilibrium separation between the two nuclei in the LiH molecule is 0.159 nm. A. What is the difference in energy between the l = 3 and l = 4 rotational levels?B. What is the wavelength of the photon emitted in a transition from the l = 4 to l = 3 level?

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

Atomic nuclei of almost all elements consist of

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?