A diver jumps from a high platform and stays in the air for 1 second. How high was the platform?
1 answer:
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Explanation:
Formula for angle subtended at the center of the circular arc is as follows.
where, S = length of the rod
r = radius
Putting the given values into the above formula as follows.
=
=
=
Now, we will calculate the charge density as follows.
=
=
Now, at the center of arc we will calculate the electric field as follows.
E =
=
= 34.08 N/C
Thus, we can conclude that the magnitude of the electric eld at the center of curvature of the arc is 34.08 N/C.
Answer:
Explanation:
Silver is a generally excellent conductor, this implies its resistivity is low (from table, we can check the exact worth i.e )
Pure water, rather, is an extremely awful conductor, this implies its resistivity is exceptionally high, of order of
Indeed, even without knowing the exact estimation of the pure water resistivity, we can appraise the proportion between the pure water resistivity and the silver resistivity by looking at the two orders of magnitude:
Therefore, we can say that the correct answer is