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- A drug containing 9943Tc with an activity of 2.00 μCi is to be injected into a patient at 11:00 am. A sample is prepared 4.00 hours before the injection (at 7:00 am). The activity of the drug have at the preparation time (7:00 am) was 3.16 μCi. What is the half-life of 9943Tc? A. 6.05 hr B. 8.74 hr C. 12.6 hr D. 7.45 hr E. 6.91 hrConsider the nuclear fusion reaction 3H+ 'He > 'H + 'He. Part A Compute the binding energy of the H. Express your answer in mega-electron volts to three significant figures. B = MeV Submit Previous Answers Request Answer Part B Compute the binding energy of the He. Express your answer in mega-electron volts to three significant figures. ? B = MeV Submit Previous Answers Request Answer Part C Compute the binding energy of the H. Express your answer in mega-electron volts to three significant figures. ? B = MeV Submit Request Answer Part D Compute the binding energy of the "He. Express your answer in mega-electron volts to three significant figures. B = MeVAn unknown element X has the following isotopes: ⁶⁴X (49.00% abundant), ⁶⁶X (28.00% abundant), ⁶⁸X (23.00% abundant). What is the average atomic mass in amu of X?
- b) The following questions is about the 20Ne atom. Given: Rest mass of 20Ne, m²ºNe = 19.99244u Rest mass of proton, mp = 1.007825u Rest mass of neutron, m₂ = 1.008667u Rest mass of electron, m₂ = 5.4857 × 10-¹u i) ii) Calculate the binding energy per nucleon of the atom. In MeV. Calculate the mass defect of the atom. In MeV.By READING the N vs t graph shown below, determine No & the half-life. N (x10¹ atoms) 120 90. 60. 30. 1 2 3 4 5 6 7 8 9 10 t(y) No = half-life = atoms1 Radioactive decay Consider a chain of radioactive decays 1-2-3, where nuclei of type 3 are stable. We assume that we begin with No atoms of the parents at t= 0 and no atoms of the decay products are originally present. The decays constants are represented by A₁, A2. a) Compute N₁ (t) b) Compute N₂(1) c) Compute N₁ (1) d) Compute N₁ (t) + N₂(t) + Na(t) and interpret. e) Plot N₁ (t), N₂(t), and N₁(e) approximately and interpret them at small t and too
- Disintegration. NUCLEAR PHYSICS. Explain what it's being used. It has been found that a sample of uranium oxide (U308), freshly prepared from an ore of uranium, emits 20.5 a particles per mg per second. If we have A238 = 4.8 × 10¬185-1, is it possible to have a 1mg sample?234 has an time constant 3.13 x105 years. How long will it take to reduce a sample of 6,542 234U atoms to 3,646 atoms? Express your answer in 105 years. 000 000 F4 F5 MacBook Air F6 an F7 DII F8A) Calculate the total binding energy of the nuclei of 31P (of atomic mass 30.973907 uu ). Express your answer in million electronvolts to four significant figures. B) Calculate the total binding energy of the nuclei of 207Pb (of atomic mass 206.975897). Express your answer in million electronvolts to four significant figures. C) Calculate the binding energy per nucleon for 31P. Express your answer in million electronvolts per nucleon to four significant figures. D) Calculate the binding energy per nucleon for 207Pb. Express your answer in million electronvolts per nucleon to four significant figures.
- Part A Calculate (in MeV) the total binding energy for 40 Ar. Express your answer in mega-electron volts to four significant figures. ? MeV Submit Previous Answers Request Answer X Incorrect; Try Again; 7 attempts remaining Part B Calculate (in MeV) the binding energy per nucleon for 40 Ar. Express your answer in mega-electron volts to three significant figures. Ην ΑΣφ ? Var = MeV Submit Request Answer Part C Calculate (in MeV) the total binding energy for 40K. Express your answer in mega-electron volts to four significant figures. nνα ΑΣφ ? BK = MeV Submit Previous Answers Request AnswerProblem A You have a 5.7 mol pure sample of an unknown material. After 2 h, you discover that 44% has decayed. Determine the half-life, decay constant, mean life, & initial decay rate. Also determine what the decay rate is at 2 h. T1/2= λ = T= Ro= R= h-1 decays/h decays/hA person with lymphoma receives a dose of 35 gray in the form of gamma radiation during a course of radiotherapy. Most of the dose is absorbed in 18grams of cancerous lymphoma tissues. i. How much energy is absorbed by the cancerous tissue. ii. If this treatment consist of five 15 minutes session per week and just one percent of the gamma photon in the gamma ray beam are absorbed. What is the power of the gamma ray beam. iii. If the gamma ray beam consists of just 0.5 percent of the photons emitted by the gamma ray source, each of which has an energy of 0.03 Mev. What is the activity in curries of gamma ray source.