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Q: Now suppose the positive charge is moved off center as shown below. + 4. Redraw the field outside,…
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- The atomic weight of cadmium is 112.41, and its density is 8.65 g/cm3. Using Figure 14.3, estimate the attenuation distance of a thermal neutron beam in cadmium. (The attenuation distance is the distance traveled after which the intensity of the beam is reduced to 1/e of its initial value, where e is the base of the natural logarithms.)What is the mass of 60Co in a cancer therapy transillumination unit containing 5.00 kCi of 60Co?At a distance of 100cm, the exposure from a radioactive substance is measured at 450mR. What will the exposure be at a distance of 20cm
- 19Consider g=10In the fall of 2002, scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237 is about 60 kg. The critical mass of a fissionable material is the minimum amount that must be brought together to start a nuclear chain reaction. Neptunium-237 has a density of 19.5 g/cm3. What would be the radius of a sphere of this material that has a critical mass?How does the rate of decay of a long-half-life material normally compare with the rate of decay of a short-half-life material?
- If a vial contains 600 MBq of iodine-123 at 12:30 (14 june 2019), how much radioactivity will be present in the vial at 14:00 on 15 june 2019. Please input your answer in Bq and CiIf you purchased 3.61 Mu Ci of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new?Find the activity of a certain material after 3.4 weeks if it has a half life of approximately 326 hrs. The activity of the material at the time it was used was 5 uCi.*Calculate answers to two (2) decimal places.*Express your answer in Curie.*Write your answer in this form, example: 10.25x10-6 Joule is written as --> 10.25e-6 J