If you ADD those displacements,
(4 km south) + (5 km south) = 9 km south
and
(2 km north) + (5 km north) = 7 km north
Then (9 km south) + (7 km north) = 2 km south
Answer:
Charge on the sphere will be equal to
Explanation:
We have given radius of the sphere a = 13 cm
And electric filed 21 cm from the center is
So distance from the center r = 21 cm
We have to find the charge on the sphere
As
So according to Gauss law electric field is equal to
So
So charge on the sphere will be equal to
Proton I think if I remember right
PART A)
Electrostatic potential at the position of origin is given by
here we have
now we have
Now work done to move another charge from infinite to origin is given by
here we will have
so there is no work required to move an electron from infinite to origin
PART B)
Initial potential energy of electron
Now we know
now by energy conservation we will have
So here initial total energy is sufficient high to reach the origin
PART C)
It will reach the origin
Answer:
When you rub a balloon on your head, electrons move from the atoms and molecules in your hair onto the balloon. Electrons have a negative charge, so the balloon becomes negatively charged, and your hair is left with a positive charge.
Explanation: