
46. (a) Calculate the activity R of 3.35g of 226Ra. (Note: A. = 1 N.). Answer...
46. (a) Calculate the activity R of 1.69 of 226Ra. (Note: A = 2 N.). Answer to 3SigFigs in Bq. Check Ch31 P59. World War Il aircraft had instruments with glowing radium-painted dials (see Figure 31.2). The activity of one such instrument was 4.0x105 Bq when new. (a) What is the initial mass of 226 Ra in grams? Enter your answer to 7SigFigs. Units are not entered for this problem. (b) After some years, the phosphors on the dials deteriorated...
how to calculate the convolution
Calculate the convolution of the following sequences: x[n] (n +1 )R, [n] and h = u [n-2] Answer: Note that the convolution of any sequence with u[n] is the sum of all the components (an integrator) 2. x[n]=仁1,-2-3-4) 1 vl n | =.xln|>k 11 | n | = 〈ー1, 2(00.-1,-3.-6.-10-10.
Calculate the convolution of the following sequences: x[n] (n +1 )R, [n] and h = u [n-2] Answer: Note that the convolution of any sequence...
1. Calculate the activity of a 200.0 g sample of natural potassium. Express your answer both in Curies (Ci) and in Becquerel (Bq). 1 Bq = 1 nuclei s−1 1 Ci = 3.700×1010 nuclei s−1 2. Technetium-99m is a metastable form of technetium-99 (isotopic mass = 98.9062547 u) and has a half-life of 6.0058 hours. How many grams of Tc-99m are required to have an activity of 50.0 μCi? 3. Ytterbium-169 is a radioactive isotope. 10.0 μg of pure Yb-169...
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Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 6.9 mg sample of tin-129. Give your answer in becquerels and in curies. Be sure your answer has the correct number of significant digits Bq Ci
Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 6.9 mg sample of tin-129. Give your answer in becquerels and in curies. Be sure...
Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 4.5 mg sample of cobalt-60. Give your answer in becquerels and in curies. Round your answer to 2 significant digits. Bq ? Ci
10. 1-/5 Points] DETAILS 231 The hall-life of isotope 91 Pa is 32.76 years. Calculate the activity of 4e06 g of this isotope in Bq and Ct A- Bq and Am Find the activity of the sample ofer 47 years СА Submit Answer
please note that the answer is not
2.4*10^14. please show your work clearly thank you, i'll upvote
6. The radioactive isotope (183 Ta) has a half-life of 5.11 days. A sample containing this isotope has an initial activity at (t = 0) of 4.50 x 108 Bq. Calculate the number of nuclei that will decay in the time interval between tı = 36.0 hours and t2 = 70.0 hours. x 2.4e14 nuclei
6. The half-life for the day of carbon-14 is 5.73x10 years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from an archeological dig is measured to be 1.9x103 Bq. The acitivity in a similar- sized sample of fresh wood is measured to be 7.8x103 Bq. Calculate the age of the artifact. Round your answer to 2 significant digits. rate kN kIn 2 (ICi-3.7x1010 Bq) 1/2
Calculate the expectation value <r> of an electron in the state of n=1 and 1-0 of the hydrogen atom. r is the position from the nucleus. Use the wave functions appropriately in Table 6-1 of the textbook. You can use the integration of x" exp(-ax) dx= a (n>-1, a>0). an+1
Calculate the expectation value of an electron in the state of n=1 and 1-0 of the hydrogen atom. r is the position from the nucleus. Use the wave functions appropriately...
Using the data table below, calculate the values for the following expressions. Note that n represents the number of summations (i.e. when calculating Xx;, then n=3). X and are the means of the values being summed (i.e. when calculating 2x;, then X = [*;, then X = X,+X.). Record all answers in the Part IV worksheet of the Assignment 1 spreadsheet. (Each calculation is worth 2 marks). 1 2 4 5 6 7 3 22 х 14 19 35 16...