A. 1.2x10 R B. 1.8x10' R C. 1.8x 10 R D. 8.4x10 R 32. What is an exposure of 4.6x10 C/kg in roentgens?
Q: A researcher is using Radium-226 with an activity of 3 Rad per hour. What the thickness of lead…
A: Radium-226 emits mostly gamma rays. Therefore, we are using below given equation. In this equation,…
Q: One useful radioisotope useful for dating the age of certain archaeological items is Carbon-14.…
A: Given : t12= 5730 years t= 17190 years No. of half lives =…
Q: D. 0.00 MIN A. 0.6 mR/hr B. 3 mR/hr C. 75 mR/hr D. 375 mR/hr 2. If the exposure rate at 10 m from a…
A:
Q: Find the activity of a sample containing 7.24 x 10-6 g of Co (T1/2 = 5.27 years).
A:
Q: 7A. What method do scientists use to determine the age of fossils, and what radioactive isotope do…
A: Scientists employ different types of techniques to calculate the age of fossils, accurately adapting…
Q: a. What is the final product of U-235? b. What are the 10 intermediate nuclides?
A: When a particle undergoes alpha decay it produces an alpha particle. e.g: When a particle undergoes…
Q: 14. Explain why the following reactions violate one or more of the rules for nuclear reactions. a.…
A: In nuclear reactions, the total atomic number (proton #) and total mass number (proton + neutron)…
Q: 2. The intensity of radioactivity depends on the distance of the recipient from the source of…
A:
Q: If the approximate size of corona virus is 1000 nm. This value is equal to O a. 1 µm
A: Given Size of virus =1000nm
Q: The half-life of element X is 8 days. If 120 g of element X is placed on a table, how much remains…
A: Given data: Half life (t1/2) = 8 days Initial amount of substance (N0) = 120 g Time (t) = 24…
Q: The intensity of radiation at 2m was 300 mR/hr. What would the exposure be at 4m? Oa. 1200 mR/hr Ob.…
A:
Q: 2. Two values were measured, x = 32 ± 5 s² and y = 27 + 4 s. You then need to calculate the…
A:
Q: Consider the following data from the analysis of mercury using cold vapor atomic a spectrometry:…
A: GivenS=1.09 CHg+0.298
Q: 3. Which of these nuclides do you expect to be radioactive? Explain your reasoning. a. 20 Ne b.…
A:
Q: 4) Strontium-90 is a radioactive isotope with a half-life of 29 years. Strontium-90 is a major…
A: Half life of strontium 90= 29 years
Q: After 32 days, only 1/16 of a radioactive sample remains. What is the half-life of this sample?…
A:
Q: 4. ,A reactor is being designed for a new wastewater treatment plant. The effluent BOD is not…
A: given that,v=1000 m3k=0.25-1 R= -k(BOD)
Q: A 0.2-g sample of 386 Kr gas, which decays into stable Rb, is accidentally broken and escapes inside…
A: I have use the concept of specific gravity
Q: What is the occupancy number of the level lg9/2? Select one: а. 16 O b. 10 O c. 20 O d. 8
A:
Q: A uranium nucleus emits an α particle. Assuming charge is conserved, the resulting nucleus must be…
A: When Uranium whose mass number is 238 breaks into smaller nucleus and emitting alpha particle .
Q: If a source of radiation had 1000 units of gamma radiation at 1 ft, what would the radiation level…
A: Given, The initial source of radiation,I1=1000 units Distance,d1=1 ft To find the radiation level at…
Q: Q1 Find R and concentration of minority carriers for p-type sample with NA = 3 x 1021/m³, l = 1 cm,…
A: Given data:NA=3×1021/m3l=1 cm=0.01 mA=0.4 mm2=4×10-7 m2ni=2.5×1019/m3μn=0.38 m2/V·sμp=0.18…
Q: 1. The half-life of cobalt-60 is 5.3 years. If 4.0g of cobalt-60 are allowed to decay for 21.2…
A: Given Half life t12 = 5.3 years, Initial amount N0 = 4 gram 1(a) now from formula N =…
Q: 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: Since you have asked multiple questions, we will solve the first question for you. If you want a…
Q: How many kilograms of water are needed to obtain the 198.8 mol of deute assuming that deuterium is…
A: Given: Number of moles of deuterium is 198.8 mol. The percentage of deuterium by number of…
Q: 7. What is the wavelength of 300-keV gamma rays? A. 7.25x10 m B. 4.14x10 m C. 4.14×10¹2 m D. 7.25x…
A: Gamma rays are high-energy photons. Photons are considered packets of energy. Each photon will have…
Q: 2. What is fission? a. What is it used for? b. What is the beginning atoms? c.…
A: Fission occurs when a neutron slams into a larger atom, forcing it to excite and spilt into two…
Q: Forced vibratory system, a body of mass 2 kg vibrates in a viscous liquid. The 20 N harmonic…
A: Given that: m=2 kgF=20 NA=15 mm=0.015 mT=0.15 s
Q: 2. You place a C film with an unknown thickness in between an Am-241 source and a detector. After…
A: Americium undergoes radioactive decay via alpha particle emission. The alpha decay energy of the…
Q: A person of skin temp of 37 C and body surface area 1.75m^2 : Find . Net total power if he receives…
A: Answeris below with proper explanation
Q: 4. Because of its chemical similarity to calcium, 3 Sr can collect in the bones and present a health…
A: Solution:Given:t = duration of time = 47.6 yearsT = half life of 90Sr38 = 28.8 yearsp2 = percentage…
Q: What is the activity in Ci of a 2.6 mg sample of 3H? VE ΑΣΦ Ro = What is the activity in Bq of a 2.6…
A:
Q: A beta particle is A.a form of highly penetrating radiation . B.an electron emitted by a larger…
A: The transformation of a neutron into a proton and an electron (followed by the emission of the…
Q: 1. Define radioactivity. 2. Give an example of a radioactive isotope. 3. How many protons and…
A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…
Q: To date the age of the oldest materi als, scientists would normally tum to the radioactivity of a.…
A:
Q: Determine the resultant reactions at A and B. (ANS: RA= 18.03kN, 33.69° N of E and Rg = 33.54kN)
A: Given that:
Q: The half life period of radioactive element same as the mean life time of another radioac element y.…
A:
Q: 2. A person on a diet loses 2 kg per week. Find the average rate of mass loss in milligrams every:…
A: Losses mass (m) = 2 Kg = 2000000 miligramTime (t) = 1 week = 7 days = 604800 seconds
Q: Why are some radioactive substances dangerous for a very long time? Select one: a. Some radioactive…
A: Elements such radium and uranium have very large half-lives of order of 1000 years and billion years…
Q: 7. Cobalt-60 has many medical applications. If the half-life of cobalt-60 is 5.25 years, how long…
A: Half life ( T ) = 5.25 years Initial amount of sample = No Final amount of sample ( N ) = No / 3
Q: A spherical system is made up of 95 wt% 235U and 5 wt% 238U. a. Calculate the fission mean free path…
A: Given,A spherical system is made up of 95 wt% 235U and 5 wt% 238U. To calculate the fission mean…
Q: 1. What is the reaction responsible for the production of light energy from the sun? A. Fusion B.…
A: Hi, you have submitted multiple questions and it is not specified in which problem you need help.…
Q: Radiation technology in industry is used to coat wood. The rays used for coating wood are .... a.…
A:
Q: Element X has a half-life of 6 hours. How much of X remains from a 64 kg sample after one day?…
A: Given data The half-life of element X is given as t1/2 = 6 hrs. The original sample of element X is…
Step by step
Solved in 2 steps
