College Physics: A Strategic Approach (4th Edition)
4th Edition
ISBN: 9780134609034
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Chapter 30, Problem 43P
To determine
Number of alpha particles emitted during
t = 50 t = 200 s
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A sample of 1.0 × 1010 atoms that decay by alpha emission has a half-life of 100 min. How many alpha particles are emitted between t = 50 min and t = 200 min?
A 60-kg person accidentally ingests a small source of alpha particles (RBE=15). The activity of the source is 0.04 Ci, the half-life of the source is 110 years, and each alpha particle emitted has an energy of 0.586 MeV. It takes 12hours for the alpha source to pass through the person’s digestive system and exit the body.
How many alpha particles are absorbed by the person (assume that 100 percent of the alpha particles emitted by the source are absorbed by the person)?
How much energy, in Joules, is deposited in the person by the source?
What is the absorbed dose in rad? What is the absorbed dose in rem?
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Chapter 30 Solutions
College Physics: A Strategic Approach (4th Edition)
Ch. 30 - Prob. 1CQCh. 30 - Prob. 2CQCh. 30 - Prob. 3CQCh. 30 - Prob. 4CQCh. 30 - Prob. 5CQCh. 30 - Prob. 6CQCh. 30 - Figure Q30.7 shows how the number of nuclei of one...Ch. 30 - Prob. 8CQCh. 30 - Prob. 9CQCh. 30 - Prob. 10CQ
Ch. 30 - The material that formed the earth was created in...Ch. 30 - Prob. 12CQCh. 30 - Prob. 13CQCh. 30 - Prob. 14CQCh. 30 - Prob. 15CQCh. 30 - Prob. 16CQCh. 30 - Prob. 17CQCh. 30 - Prob. 18CQCh. 30 - Prob. 19CQCh. 30 - Prob. 20CQCh. 30 - Prob. 21CQCh. 30 - Prob. 22CQCh. 30 - Prob. 23CQCh. 30 - Some types of MRI can produce images of resolution...Ch. 30 - Prob. 25CQCh. 30 - Prob. 26CQCh. 30 - Prob. 27CQCh. 30 - Prob. 28CQCh. 30 - Prob. 29MCQCh. 30 - Prob. 30MCQCh. 30 - Prob. 31MCQCh. 30 - Prob. 32MCQCh. 30 - Prob. 33MCQCh. 30 - Prob. 34MCQCh. 30 - Prob. 35MCQCh. 30 - Prob. 36MCQCh. 30 - Prob. 37MCQCh. 30 - Prob. 38MCQCh. 30 - Prob. 1PCh. 30 - Prob. 2PCh. 30 - Prob. 3PCh. 30 - Prob. 4PCh. 30 - Prob. 5PCh. 30 - Prob. 6PCh. 30 - Prob. 7PCh. 30 - Prob. 8PCh. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - Prob. 11PCh. 30 - Prob. 12PCh. 30 - Prob. 13PCh. 30 - a. Compute the binding energy of the reactants and...Ch. 30 - a. Compute the binding energy of the reactants and...Ch. 30 - Prob. 16PCh. 30 - Prob. 17PCh. 30 - Prob. 18PCh. 30 - Prob. 19PCh. 30 - Prob. 20PCh. 30 - Prob. 21PCh. 30 - Prob. 22PCh. 30 - Prob. 23PCh. 30 - Prob. 24PCh. 30 - Prob. 25PCh. 30 - Prob. 26PCh. 30 - Prob. 27PCh. 30 - Prob. 28PCh. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - Prob. 32PCh. 30 - Prob. 33PCh. 30 - Prob. 34PCh. 30 - Prob. 35PCh. 30 - Prob. 36PCh. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - Prob. 40PCh. 30 - Prob. 41PCh. 30 - Prob. 42PCh. 30 - Prob. 43PCh. 30 - Prob. 44PCh. 30 - Prob. 45PCh. 30 - Prob. 46PCh. 30 - Prob. 47PCh. 30 - Prob. 48PCh. 30 - Prob. 49PCh. 30 - Prob. 50PCh. 30 - Prob. 51PCh. 30 - Prob. 52PCh. 30 - Prob. 53PCh. 30 - Prob. 54PCh. 30 - Prob. 55PCh. 30 - Prob. 56PCh. 30 - Prob. 57PCh. 30 - Prob. 58PCh. 30 - Prob. 59GPCh. 30 - Prob. 60GPCh. 30 - Prob. 61GPCh. 30 - Prob. 62GPCh. 30 - Prob. 63GPCh. 30 - Prob. 64GPCh. 30 - Prob. 65GPCh. 30 - Prob. 66GPCh. 30 - Prob. 67GPCh. 30 - Prob. 68GPCh. 30 - Prob. 69GPCh. 30 - Prob. 70GPCh. 30 - Prob. 71GPCh. 30 - Prob. 72GPCh. 30 - Prob. 73GPCh. 30 - Prob. 74MSPPCh. 30 - Prob. 75MSPPCh. 30 - Prob. 76MSPPCh. 30 - What statement can be made about the masses above...Ch. 30 - Prob. 78MSPPCh. 30 - Prob. 79MSPPCh. 30 - Prob. 80MSPP
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- Calculate the dose in Sv to the chest at a patient given an xray under the following conditions. The xray beam intensity is 1.50 W/m2, the area of the chest exposed is 0.0750 m2 35.0% of the xrays are absorbed in 20.0 kg of tissue, and the exposure time is 0.250 s.arrow_forwardWhat is the dose in mSv for: (a) a 0.1 Gy xray? (b) 2.5 mGy of neutron exposure to the eye? (c) 1.5 mGy of exposure?arrow_forwardA 60-kg person accidentally ingests a small source of alpha particles ( RBE=15). The activity of the source is 0.04 Ci, the half-life of the source is 110 years, and each alpha particle emitted has an energy of 0.586 MeV. It takes 12hours for the alpha source to pass through the person's digestive system and exit the body. a). How many alpha particles are absorbed by the person ( assume that 100 percent of the alpha particles emitted by the source are absorbed by the person)? b). How many energy, in Joules, is deposited in the person by the source? c). What is the absorbed dose in rad? d). What is the absorbed dose in rem?arrow_forward
- Radioactive element AA can decay to either element BB or element CC.The decay depends on chance, but the ratio of the resulting number of BB atoms to the resulting number of CC atoms is always 2/1.The decay has a half-life of 8.00 days.We start with a sample of pure AA. How long must we wait until the number of CC atoms is 1.50 times the number of AAatoms?arrow_forwardA 60-kg person accidentally ingests a small source of alpha particles (RBE=15). The activity of the source is 0.04 Ci, the half-life of the source is 110 years, and each alpha particle emitted has an energy of 0.586 MeV. It takes 12hours for the alpha source to pass through the person’s digestive system and exit the body. (a) - How many alpha particles are absorbed by the person (assume that 100 percent of the alpha particles emitted by the source are absorbed by the person)? (b) - How much energy, in Joules, is deposited in the person by the source?arrow_forwardPhosphorus-32 is a beta emitter with a decay constant of 3,6x107 s'. For a particular application, the phosphorus-32 emits 2.0x10" beta particles every second. Determine a. The half-life of the phosphorus-32. b. The mass of pure phosphorus-32 will give this decay rate. (Given the Avogadro constant, NA =6.02 ´ 1023 mol·')arrow_forward
- What is the binding energy per nucleon of an alpha particle? The nuclear mass of an alpha particle is 4.00151 amu [A] 14.15 MeV/nucleon [B] 28.50 MeV/nucleon [C] 7.07 MeV/nucleon [D]28.29 MeV/nucleon (n= 1.008665 amu and p+= 1.007277 amu)arrow_forwardA 70-kg person experiences a whole -body exposure to alpha radiation (RBE= 15) with energy 4.77 MeV. A total of 6.25×10^12 alpha particles are absorbed. a). What is the absorbed dose in rad? b). What is the equivalent dose in rem?arrow_forwardA 60 kg person accidentally ingests a small source of alpha particles (RBE=15). The activity of the source is 0.04 Ci, the half life of the source is 110 years, and each alpha particle emitted has an energy of 0.586MeV. It takes 12 hours for the alpha source to pass through the persons digestive system and exit the body. (a) How many alpha particles are absorbed by the person (you may assume that 100% of the alpha particles emitted by the source are absorbed by the person)? (b) How much energy is deposited in the person by the source (in J)?arrow_forward
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