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- Q 2. In the fra, shown below. Resolve the fore lo0lb into taio components one abng AB and the other Paralel to CD. A B 10 14 3 5 2001b7..A spherical system is made up of 95 wt% 235U and 5 wt% 238U. a. Calculate the fission mean free path b. Calculate the absorption mean free path c. Calculate k∞ for this assemblyQ1 Find R and concentration of minority carriers for p-type sample with NA = 3 x 1021/m³, l = 0.38 m²/V.s and µp = 0.4 mm2, and ni = 2.5 × 1019/m³. 1 cm, = 0.18 m²/V.s. А Mn
- Francium-223hasahalf-lifeof21.80min.i.Howmanynucleiareinitiallypresentina25.0-mgsampleofFrancium-223?ii.Whatisitsinitialactivity?iii.Howmanynucleiwillbepresent1hrand49minlater?How much energy 1g of fat contains? Calculate.Identify the exponential relationship from the list below: Select one: z = (100+2)e4t z = (100+e4)t+2 2 = (100+2)t+e 4 =(100+e4)t? O a. O b. %| c. O d.
- (a) If the average molecular mass of compounds in food is 50.0 g, how many molecules are mere in 1.00 kg at food? (b) How many ion pairs are created in 1.00 kg of food, if it is exposed to 1000 Sv and it takes 32.0 eV to create an ion pair? (c) Find the ratio of ion pairs to molecules. (d) If these ion pairs recombine into a distribution of 2000 new compounds, how many parts per billion is each?What is the mass of 60Co in a cancer therapy transillumination unit containing 5.00 kCi of 60Co?1.86 O Hl 20% | 2:39 PM K/s iv. What exposure time is required for an equivalent dose of 200 rem? B. A laser with power output of 2.0 mW at a wavelength of 400 nm is projected onto a Calcium metal. The binding energy is 2.31 ev. i. How many electrons per second are ejected? i. What power is carried away by the electrons? C. A hypodermic needle of diameter 1.19 mm and length 50 mm is used to withdraw blood from a patient? How long would it take for 500 ml of blood to be taken? Assume blood viscosity of 0.0027 Pa.s and a pressure in the vein of 1.900 Pa. D. A person with lymphoma receives a dose of 35 gray in the form of gamma radiation during grams of cancerous lymphatic tissue. course of radiotherapy. Most of this dose is absorbed in 18 i. How much energy is absorbed by the cancerous tissue? If this treatment consists of five 15-minute sessions per week over the course of 5 weeks and just one percent of the gamma photons in the gamma ray beam are absorbed, what is the power of the…
- 2. You place a C film with an unknown thickness in between an Am-241 source and a detector. After one minute has passed, the detector has registered 10275 counts. You then remove the film, and the detector registers 11000 counts during a one minute interval. How thick is the C target? Provide an answer in units of ug/cm2.What size disinfection chamber will be needed to achieve a 3 log disinfection of viruses, using chloramine, at 20°C, and achieve a residual of 0.23mg/L after 5 days, if the decay constant is 1016/day? The plant processes 1m hr a. 34.1m Q3 b. 3.3m3 c. 38.7m3 d. 4.3m3 Calculation / Reasoning:1. Determine Ib. (beta = 100) 2. Determine Ic. (beta = 100) 3. Determine Vce. (beta = 100)