What is the acceleration of a rocket that speeds up from 50 m/s to 1000 m/s in 3 seconds?
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The question is incomplete. The complete question is :
A platypus foraging for prey can detect an electric field as small as 0.002 N/C.
-To give an idea of sensitivity of the platypus's electric sense, how far from a +80nC point charge does the field have this magnitude?
Solution :
Given electric field, E = 0.002 N/C
Charge, Q = + 80 nC
or
R = 600 m
This is the distance of the charge from the point of observations.