Question

Two point charges of charge Q = 17 nC and mass m = 22 g are 39 cm apart. One of them is let go. Gravity should be ignored.

What will its speed be when it has moved 17 cm?

Answer #1

Four identical particles (charge Q=1.6 nC, mass m = 4 g) are
placed at corners of a square of side b = 5.9 cm. What is the
electric potential energy of this system? (The electric potential
energy is zero when the particles are very far apart.)
The particles are now released from rest. What is the speed of
each particle when they are very far apart? (You may ignore
gravity.)

two stationary point charges 10 nc and -20 nc are located 10 cm
apart. An electron is released from rest between them at a distance
of 3 cm from the negative charge. What is the speed of the electron
when it reaches a point 3cm from the positive charge?

Two stationary positive point charges, charge 1 of magnitude
3.75 nC and charge 2 of magnitude 1.55 nC , are separated by a
distance of 36.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges. What is the speed vfinal of the
electron when it is 10.0 cm from charge 1?

Two stationary positive point charges, charge 1 of magnitude
3.80 nC and charge 2 of magnitude 1.80 nC , are separated by a
distance of 55.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges.
1. What is the speed vfinal of the electron when it is
10.0 cm from charge 1?

Two stationary positive point charges, charge 1 of magnitude
3.40 nC and charge 2 of magnitude 1.75 nC , are separated by a
distance of 40.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges.
Part A-) What is the speed vfinal of the electron when
it is 10.0 cm from charge 1?

Two stationary positive point charges, charge 1 of magnitude
3.25 nC and charge 2 of magnitude 2.00 nC , are separated by a
distance of 42.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges.
What is the speed vfinal of the electron when it is
10.0 cm from charge 1?

Two stationary positive point charges, charge 1 of magnitude
4.00 nC and charge 2 of magnitude 1.55 nC, are separated by a
distance of 47.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges.
What is the speed vfinal of the electron when it is 10.0 cm from
charge 1?
Express your answer in meters per second.

Two stationary positive point charges, charge 1 of magnitude
3.70 nC and charge 2 of magnitude 1.50 nC , are separated by a
distance of 46.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges.
What is the speed vfinal of the electron when it is
10.0 cm from charge 1?
Express your answer in meters per second.

Two stationary positive point charges, charge 1 of magnitude
3.90 nC and charge 2 of magnitude 2.00 nC , are separated by a
distance of 30.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges.
Part A
What is the speed vfinal of the electron when it is
10.0 cm from charge 1?
Express your answer in meters per second.

Two stationary positive point charges, charge 1 of magnitude
3.80 nC and charge 2 of magnitude 1.90 nC , are separated by a
distance of 53.0 cm . An electron is released from rest at the
point midway between the two charges, and it moves along the line
connecting the two charges.
A. What is the speed v final the electron when it is 10.0 cm
from charge 1?
Express your answer in meters per second.

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