Bismuth-210 (20bi) (mass = 209.9841049u) has a half life of 5.013 days. this nucleus might decay by either beta-minus or beta-plus processes. some possible products with masses are polonium-209(208.9824158u), polonium-210(209.9828574u), polonium-211(210.9866369u), lead-209(208.9810748u) lead-210(209.984173 lu), lead-211(210.9887315u). polonium has z-84 and lead has z=82 a.) what is the binding energy of the bismuth nucleus? b.) explain which of the listed nuclei are possible decay products. show all products of the reaction that releases the most energy c.) what is the possible range of energies associated with the b- or b* particle that is emitted? (it is one or the other, not both.) how is a range of energies consistent with conservation of energy?

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?

People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. 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.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)