The electric field that is 0.25m from a small sphere is 450n/c toward the sphere. a. is the charge positive or negative? why? b. what is the magnitude of the charge on the sphere?

PART 1)

A small sphere is considered to be a point charge

So here if electric field is indicating the position of charge itself or it is towards the charge then it must be a negative charge on the sphere

PART 2)

Electric field due to a point charge is given by

here

= distance of charge from the point where field strength is required

= 0.25 m

now from the above equation we can say

So magnitude of charge is 3.125 nC on the small sphere

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

c) power lifting, will be your answer.

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deku ❤