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Unformatted text preview: Challenge Problem 2 Name:
Due Tuesday July 9, 2013 1. You want to trap a single piece of antimatter. You decide to start small and work
with a positron. (546 frobbm 2 6.. 7] > b
1 You have a hoop of charge of radius R and total charge -Q. You place a positron at
E the center of the hoop and give it a slight nudge. Due to'the negative charge on the
hoop, the positron oscillates back and forth. Find the period of oscillation. 2. A hemispherical thin shell of radius R carries a uniform surface charge density 6. M W m
‘—'—> back Find the electric field at the center of the hemispherical shell (r = O) MW Wz/m 7%: AWWAW Mbj Map/J % J mama mfg/o ,% MAM?”
& %¢ka JS/ 4% w% m
Mmj fle Z~zéheb74bnw5émm Pam figmbfij ’5 7%? 5A7”: . if, ‘
Mrzvasma & gimme ,& a’s: lea/9
EMA M’flj W“ a 5W? ”/7” @“U; ’L’” ' _ :90.
CF: 93%. a, ”/72. €in yaw c/M‘ ‘
, , . Aszfide'mflb
J¢:2Wewwa 0' 0M 2mm 7Z6 {jib/Slit 746M due 7% flan/{EZW 5/7 Jaw/fa
' “fl AWAM? 'w : 6/5, ,L. 2J1 twee (22+ [‘2] 3/2 M J5; 4,; gmwmzé'w‘CQUVW) a V , o WWg+RZSI0~M R3
G” ' _
(IE: 346:, 3/17 964g J9 ( F2130” w flu} (fir rinj
"rah/Q E w. ‘- J at?“ + ) W
‘ _Q:. l 5/h29] L —_2€a.2 0" ...
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- Summer '14
- AhmadRajabzadeh
- Physics
