Question

Two point charges are fixed 4.0 cm apart from each other. Their charges are Q1=Q2 = 7.5 μC , and their masses are m1 = 1.5 mg and m2 = 2.5 mg .If both charges are released from rest at the same time, what will be the speed of Q1 after a very long time?

Answer #1

Two point charges Q1 = Q2 = +1.3 μC are fixed symmetrically on
the x-axis at x = ±0.386 m. A point particle of charge Q3 = +4.4 μC
and mass m = 18 mg can move freely along the y-axis.If the particle
on the y-axis is released from rest at y1 = 0.019 m, what will be
its speed, in meters per second, when it reaches y2 = 0.068 m?
Consider electric forces only. v =

Two point charges Q1 and Q2 are 2.30 m
apart, and their total charge is 15.4 μC. If the force of repulsion
between them is 0.0990 N, what are magnitudes of the two charges?
Enter the smaller charge in the first box.
Q1 =
Q2 =
If one charge attracts the other with a force of 0.0763N, what
are the magnitudes of the two charges if their total charge is also
15.4 μC? The charges are at a distance of...

Two point charges Q1 = Q2 = +1.6 µC are
fixed symmetrically on the x-axis at x= ±0.147m. A point particle
of charge Q3 = +4.2 µC and mass m= 12 mg can move freely
along the y-axis.
(a) If the particle on the y-axis is released from rest at
y1 = 0.025 m, what will be its speed, in meters per
second, when it reaches y2 = 0.066 m? Consider electric
forces ONLY!

A point
charge Q1
=
+4.3
μC
is fixed in space, while a point charge Q2
=
+2.9
nC, with
mass
7.8 μg, is free to
move around nearby.
B) If Q2 is released from rest at a
point 0.36
m from Q1, what will be its speed, in meters
per second, when it is 0.84
m fromQ1?

Two point charges, Q1 = 3.5 μC and Q2 = -1.5 μC , are placed on
the x axis. Suppose that Q2 is placed at the origin, and Q1 is
placed at the coordinate x1 = − 6.0 cm (Figure 1).
A)At what point(s) along the x axis is the electric field zero?
Determine the x-coordinate(s) of the point(s). Show Steps.

Two point charges, Q1 = 3.6 μC and Q2 = -1.6 μC , are placed on
the x axis. Suppose that Q2 is placed at the origin, and Q1 is
placed at the coordinate. x1 = -4.0 cm
At what point(s) along the xx axis is the electric field zero?
Determine the xx-coordinate(s) of the point(s).
At what point(s) along the xx axis is the potential zero?
Determine the xx-coordinate(s) of the point(s).

Two point charges Q1 = 30.0 nC and Q2 =
-40 nC are held fixed along the x-axis. Q1 is at x = 0
and Q2 is at x = 72.0 cm. A third particle, of mass m =
2.2 x 10-6 kg, has charge Q3 = 42µC. If
Q3 is released from x = 28 cm, what is its initial
acceleration?

1) You have two charges; Q1 and Q2, and
you move Q1 such that the potential experienced by
Q2 due to Q1 increases. Gravity should be
ignored. Then, you must be:
Moving Q1 closer to Q2
Moving Q1 further away from Q2
Moving in the same direction as the field due to Q1
Moving in the opposite direction to that of the field due to
Q1
Any of the above
2) You move two point charges such that the potential...

Two point charges, Q1 = 3.3 μC and Q2 = -1.3 μC , are placed on
the x axis. Suppose that Q2 is placed at the origin, and Q1 is
placed at the coordinate x1 = − 4.0 cm. At what point(s) along the
x axis is the electric field zero? Determine the x-coordinate(s) of
the point(s). If there is more than one answer, enter your answers
in ascending order separated by commas. At what point(s) along the
x axis...

Two point charges q1 and q2 are held 4.00
cmapart. An electron released at a point that is equidistant from
both charges (see the figure (Figure 1)) undergoes an initial
acceleration of 8.00×1018 m/s2 directly upward in the
figure, parallel to the line connecting q1 and
q2. Find the magnitude and sign of q1 and
q2.

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