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- Chrome File Edit View History Bookmarks People Window Help ot QED) 98% C4) , Sat 8:16 PM Q E Morehead State University G Home | Chegg.com G C D www.saplinglearning.com/ibiscms/mod/ibis/view.php?id=2673389 Question 10 of 23 A Sapling Learning (Map at .IA Macmillan learning ments that appear in the same column of the periodic ble often share similar chemical properties in the erectly the alkaline earth metals, this is troublesome since treats calcium (necessary for proper bone growth) and radium (a radioatictive element) as chemically similar storing both in bone marrow. The radium then bombards nearby bone cells with alpha particles, causing them to "crumble." ionized isotope Radium poisoning investigations often center on the identification of radium and its isotopes in bone samples using a mass spectrometer. Pictured is a schematic of a simplified mass spectrometer, showing the paths of calcium, barium (another alkaline earth metal) and radium isotopes entering the chamber. The region shown is immersed in a constant magnetic field of 0.552 T pointing out of the plane of the schematic. Motion of the positively-charged isotopes toward the right was initiated by a potential difference of 2464 V on the two plates shown. T-av detector Using the data shown in the table below, calculate the path radius of the Cation . Number m (Scroll down for table and more questions)Explanation / Answer
from the conservation of energy
eV = 1/2 mv^2
v = sqrt (2eV/m)
= sqrt(2* 1.602*10^-19 * 2464/40.1* 1.661*10^-27)
= 10.88 *10^4 m/s
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Bqv= mv^2/r
r = mv/qB
= 40.1 * 1.66*10^-27 * 10.88*10^4/1.602*10^-19 * 0.552
r = 0.082 m
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