Colle ×VM inbox (32,666) bnkulpa X West Liberty PHYS-101 \" Microsoft PowerPoint

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Colle ×VM inbox (32,666) bnkulpa X West Liberty PHYS-101 " Microsoft PowerPoint-FX × saka esti berty edu/portal/site/2f907581-5d8f404a-8417 s: b1 55 c1 a4/tooVdc48 935-f 458a-a5 f1 81c 68e1f sf deli ery/beginTakingAssess ment Question 2 of 10 10.0 Points Click to see additional instructions The mass of an electron is 9.1X1031 kg. You need X1030 electrons to make a mass of 4.0 kg. Mark for Review What's This? s Question 3 of 10 10.0 Points Select the smallest value. A.0.00000015X105 B. 0.00015X103 c. 15X103 D. 0.15X100 Reset Selestion Mark for Review Whars his? Question 4 of 10 4:10 Guest acer

Explanation / Answer

mass of electron, m = 9.1 x 10^-31 kg

and M = n m

4 kg = n (9.1 x 10^-31 kg)

n = 4.4 x 10^30 electrons

Ans: 4.4

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