The potential on the axis of a uniformly charged disk at 4.9 cm from the disk center is 180 V ; the potential 15 cm from the disk center is 120 V. Part A Find the disk radius. Express your answer using two significant figures. ? a = Submit Request Answer Part B Find the disk total charge. Express your answer using two significant figures. ? Q =

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The potential on the axis of a uniformly charged disk at 4.9
cm from the disk center is 180 V ; the potential 15 cm from
the disk center is 120 V.
Part A
Find the disk radius.
Express your answer using two significant figures.
?
a =
Submit
Request Answer
Part B
Find the disk total charge.
Express your answer using two significant figures.
?
Q =
Transcribed Image Text:The potential on the axis of a uniformly charged disk at 4.9 cm from the disk center is 180 V ; the potential 15 cm from the disk center is 120 V. Part A Find the disk radius. Express your answer using two significant figures. ? a = Submit Request Answer Part B Find the disk total charge. Express your answer using two significant figures. ? Q =
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