Determine the activity in 61.0 mg of radium-226 (t1/2 = 1.6×103 yr) in becquerels.
Part 2 (1 point)
Determine the activity in 61.0 mg of radium-226 (t1/2
= 1.6×103 yr) in millicuries.
2.23*10^9 Becquerels and 60.13 millicuries...ANSWER.
Determine the activity in 61.0 mg of radium-226 (t1/2 = 1.6×103 yr) in becquerels. Part 2 (1...
Question 1 4 points For a 1g sample of Radium-226 225 Ra emitting alpha particles determine the activity in Curies. The product species will be ? If the product is Lithium Li write the answer as 3L16. (Time management = 5-8 min).
Part A The tower crane is used to hoist the 2.2-Mg load constant velocity The 1.6-Mg jib BD, 0 6-Mg jb BC and 5 9-Mg counterweight C have centers of mass at G. G Determine the resultant moment produced by the load and the weights of the tower crane jibs about point A and about point B Figure N m 2.5 m 5
Thorium (with half-life T1/2 = 1.913 yr. and atomic mass 228.0287 u) undergoes alpha decay and produces radium (atomic mass 224.0202 u) as a daughter nucleus. (Assume the alpha particle has atomic mass 4.002603 u.) 1) What is the decay constant of thorium? (Note that the answer must be in units of hrs-1.) λ = 2) What percent of thorium is left after 200 days? 3) The energy released from the decay of 10 g of thorium is used to...
A sample containing 223Ra (t1/2 = 11.4 days) has an activity of 8.80×105 Bq. 1st attempt Part 1 (1 point) How many atoms of 223Ra are present? Part 2 (1 point)Feedback How many moles of 223Ra are present?
A sample containing 223Ra (t1/2 = 11.4 days) has an activity of 5.20×105 Bq. 1st attempt Part 1 (1 point)See HintSee Periodic Table How many atoms of 223Ra are present? atoms Part 2 (1 point) How many moles of 223Ra are present? moles
1st attempt Part 1 (1 point) 61.0 g LiCl in 250.0 mL of solution M (1 point) Part 2 32.0 g NISO4 in 200.0 mL of solution ЛА 10F 18 QUESTIONS COMPLETED < C Type here to search Et (1 point) Part 3 47.0 g KCN in 500.0 mL of solution
Problem 2. Determine the critical point(s) of T1 T3 and classify the values of F at the critical points. Show all of your work. As part of your answer, check that the characteristic polynomial of the Hessian at the critical point(s) is equal to (A+ 1)(A2-A-2π, (This factorization will help you to find the eigenvalues of the Hessian.) [6 marks
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Friction Lab Questions (Part 2 Only) Part 1. The friction force is equal to mg where m is the mass attached to block slides at constant speed. The normal force is equal to Mg where M is block plus added masses. Thus, equation ( 1 ) becomes mg-Afg or m fat . Thus, need to multiply the masses by g to get weight and we can just graph m on the y the x-axis. The slope of the line will...