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23 Nov 2019
An astronaut performs a simple
experiment in the "weightless" environment of a spacestation,intended
for television broadcast to elementary school classroomsaroundthe
world. By combing her hair, she is able to charge a flat combsothat,
in the vicinity of the comb, there is an approximatelyuniformelectric
field of strength E = 900 N/C.
She places the comb 4.00 cm away from a clump of smallpaperdots,
inducing a nonuniform distribution of charge in the clump sothatone
of the dots becomes charged and breaks away, acceleratingtowardthe
comb. If the paper dot has a mass of 2.95Ã10â4 kgand acharge of magnitude 3.50 μC,how fast is it going when itstrikes the comb?
An astronaut performs a simple
experiment in the "weightless" environment of a spacestation,intended
for television broadcast to elementary school classroomsaroundthe
world. By combing her hair, she is able to charge a flat combsothat,
in the vicinity of the comb, there is an approximatelyuniformelectric
field of strength E = 900 N/C.
She places the comb 4.00 cm away from a clump of smallpaperdots,
inducing a nonuniform distribution of charge in the clump sothatone
of the dots becomes charged and breaks away, acceleratingtowardthe
comb. If the paper dot has a mass of 2.95Ã10â4 kgand acharge of magnitude 3.50 μC,how fast is it going when itstrikes the comb?
Bunny GreenfelderLv2
17 Jun 2019
