Part A
If you purchased 2.61 μCi of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new?
Express your answer numerically in disintegrations per second.
Part B
A 85.0-kg person is exposed to 249 rad of radiation. How many joules did this person absorb?
Express your answer numerically in joules.
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Part A If you purchased 2.61 μCi of sulfur-35, how many disintegrations per second does the...
(A) If you purchased 2.61 μCi of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new? Express your answer numerically in disintegrations per second. (B) . A 85.0-kg person is exposed to 249 rad of radiation. How many joules did this person absorb? Express your answer numerically in joules.
Review Constants 1 Periodic Table A 72 -kg person is accidentally exposed for 234 s to a 17 –mCi source of beta radiation coming from a sample of Sr. Part A What is the activity of the radiation source in disintegrations per second? Express your answer using two significant figures. IVO A O ? disintegrations per second Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B What is the activity of the radiation source in...
< Chapter 20 practice for Quiz 12 on 23 April Study of Plutonium Levels in a Human Population < 16 of 28 > Review Constants Periodic Table Radiation can be measured according to activity, exposure, or its effect on biological tissue. Units of curies (Ci) and disintegrations per second (dps) measure activity. The rad measures exposure, where rad stands for radiation absorbed dose. The rem measures biological effect, where rem stands for roentgen equivalent man. RBE is a multiplication factor...
Part A How many sulfur molecules are there in 0.570 mol of octasulfur, Sg? Express your answer to three significant figures. IVO AEO ? molecules Submit Request Answer Part B How many sulfur atoms are there in 0.570 mol of octasulfur, S8? Express your answer to three significant figures. ΑΣφ ? atoms
Part A How many sulfur atoms are there in 5.30 mol of sulfur? Express your answer using three significant figures. νο ΑΣφ 5 ? N= atoms Reguest Answer Submit Provide Feedback P Pearson yright O 2019 Pearson Education Inc. All rights reserved. I Terms of Use I Privacy Policy I Permissions 1 Contact L next hp
Part C If the propeller were turning at 17 rad/s, at how many rpm would it be turning? Express your answer in revolutions per minute. | ΑΣΦ ? rpm Submit Request Answer Part D When the propeller were turning at 17 rad/s, what is the period (in seconds) of this propeller? Express your answer in seconds. Pa] ΑΣΦ ? I= Submit Request Answer Problem 9.09 - Enhanced - with Solution Palla An airplane propeller is rotating at 2200 rpm For...
Part A How many orbitals are there in the third shell (n=3)? Express your answer numerically as an integer. Part B Show the orbital-filling diagram for N (nitrogen). Stack the subshells in order of energy, with the lowest-energy subshell at the bottom and the highest-energy subshell at the top. Part C Show the orbital-filling diagram for S (sulfur). Stack the subshells in order of energy, with the lowest-energy subshell at the bottom and the highest-energy subshell at the top. Part...
How many electrons per second flow through a wire with a 27-pA current? (Recall that 1 pA = 10−12A and e=1.60×10−19C) Express your answer using two significant figures.
Problem 30.44 Part A How many nuclei of U remain in a rock if the activity registers 730 decays per second? The half-life is yr. Express your answer using two significant figures.
xim sec For the same graph, how many cycles per second does this object do? Don't include units in your answer Note: If you don't get the right answer, you will be retuned to this page until you do. Your answer