Question

A) Consider three identical metal spheres, A, B, and C. Sphere A
carries a charge of +4*q*. Sphere B carries a charge of
-3*q*. Sphere C carries no net charge. Spheres A and B are
touched together and then separated. Sphere C is then touched to
sphere A and separated from it. Last, sphere C is touched to sphere
B and separated from it. For the following questions, express your
answers in terms of *q*.

How much charge ends up on sphere C?

B) Water has a mass per mole of 18.0 g/mol, and each water
molecule (H_{2}O) has 10 electrons. What is the net charge
of all these electrons?

C) In a vacuum, two particles have charges of
*q*_{1} and *q*_{2}, where
*q*_{1} = +3.4 µC. They are separated by a distance
of 0.20 m, and particle 1 experiences an attractive force of 3.5 N.
What is *q*_{2} (magnitude and sign)?

D) Two tiny conducting spheres are identical and carry charges of -19.8 µC and +53.0 µC. They are separated by a distance of 2.29 cm. The spheres are brought into contact and then separated to a distance of 2.29 cm. Determine the magnitude of the force that each sphere now experiences, and state whether the force is attractive or repulsive.

Answer #1

Consider three identical metal spheres, A, B, and C. Sphere A
carries a charge of +9q. Sphere B carries a charge of -q. Sphere C
carries no net charge. Spheres A and B are touched together and
then separated. Sphere C is then touched to sphere A and separated
from it. Lastly, sphere C is touched to sphere B and separated from
it. (a) What is the ratio of the final charge on sphere C to q?
What is the...

Two tiny conducting spheres are identical and carry charges of
-21.4 µC and +46.5 µC. They are separated by a distance of 2.39
cm.
(a) What is the magnitude of the force that each sphere
experiences, and is the force attractive or repulsive?
(b) The spheres are brought into contact and then separated to a
distance of 2.39 cm. Determine the magnitude of the force that each
sphere now experiences, and state whether the force is attractive
or repulsive.

Consider three identical metal spheres, A, B, and C. Sphere A
carries a charge of -6q. Sphere B carries a charge of
+5q. Sphere C carries no net charge. Spheres A and B are
touched together and then separated. Sphere C is then touched to
sphere A and separated from it. Lastly, sphere C is touched to
sphere B and separated from it.
(a) How much charge ends up on sphere A?
(b) How much charge ends up on sphere...

Consider three identical metal spheres, A, B, and C. Sphere A
carries a charge of -6q. Sphere B carries a charge of -5q. Sphere C
carries no net charge. Spheres A and B are touched together and
then separated. Sphere C is then touched to sphere A and separated
from it. Last, sphere C is touched to sphere B and separated from
it. For the following questions, express your answers in terms of
q. (a) How much charge ends up...

Consider three identical metal spheres, A, B, and C. Sphere A
carries a charge of -2q. Sphere B carries a charge of
+3q. Sphere C carries no net charge. Spheres A and B are
touched together and then separated. Sphere C is then touched to
sphere A and separated from it. Lastly, sphere C is touched to
sphere B and separated from it.
(a) How much charge ends up on sphere A?
q
(b) How much charge ends up on...

Consider two identical conductor spheres, A and B. Initially,
sphere A has a charge of -480 µC and sphere B has a charge of +240
µC If the spheres touched and then are separated by a distance of
0.2 m. What is the resultant force between them?
Select one:
32.4X102N, attraction
12.96X103N, repulsive
6.48X102N, attraction
32.4X102N, repulsive
12.96X103N, attraction
0 N
6.48X102N, repulsion

5. Two identical metal spheres are placed 15.0 cm apart. A
charge of 6.00 µC is placed on one sphere while a charge of −2.00
µC is placed upon the other. What is the force on each sphere? If
the two spheres are brought together and touched and then separated
to their original separation, what will be the force on each
sphere?
Answer: F12 =4.80 N
attractive q = 2.00
μC
F12 = 1.60 N repulsive
7. Three charges q1...

The initial charges on three identical metal spheres are the
following: sphere A, +Q; sphere B, – Q/3; sphere C, +Q/3, where Q =
4.0 × 10–11 C. Spheres A and B are fixed in place, with a
center-to-center separation of d = 0.8 meters, which is much larger
than the spheres. Sphere C is touched first to sphere A, then to
sphere B, and is then removed. What then is the magnitude of the
electrostatic force between spheres A...

1. Sphere A carries a
positve charge 4Q and sphere B is neutral. Initially the spheres
are separated by a distance r. The spheres briefly touch each other
and move to the initial separation. What is the new charge on each
sphere?
Group of answer choices
1/2Q
Q/2
2Q
Q
2.
In region of any
positive point charge, other positive point charge feels
Group of answer choices
attractive force
opposite force
none of these
repulsive force
3.
Electric flux will...

Two tiny conducting spheres are identical and carry
charges of 3.94 micro-Coulomb and -2.39 micro-Coulomb.They are
separated by a distance of 5.89 cm.The spheres are
brought into contact and then separated back to the original
distance. Determine the magnitude of the force that each sphere now
experiences, and state whether the force is attractive or
repulsive.

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