Question

A -5.00-μC point charge is placed at the 0.0 cm mark of a meter stick and a 4.00-μC point charge is placed at the 50.0 cm mark. At what point on a line through the ends of the meter stick is the electric field equal to zero?

Answer #1

A +7.0-μC point charge is placed at the 0.0 cm mark of an x-axis
and a -5.0-μC charge is placed at the 70 cm mark. What is the net
electric field strength at the 40 cm mark on the x-axis?

Two very small +5.0 μC charges are placed at
the ends of a meter stick. At the point 40
cm from the left side of meter stick,
Find (k = 9 × 109 N ∙
m2/C2) 1.1
A) Find the magnitude and direction of results of
electric force.
B) Find the results
of electric potential (relative to infinity).

PLEASE SHOW ALL WORK!
A point charge of 5.00 μC is placed at the point (x, y) = (20.0
cm, 30.0 cm).
a) What is the magnitude and direction of the electric field E
at the origin?
b) What is the magnitude and direction of the electric field at
(x, y) = (1.00 m, 1.00 m)?

Three point charges are placed on the x-axis. A charge of +2.0
μC is placed at the origin, -2.0 μC to the right at x = 50 cm, and
+4.0 μC at the 100 cm mark.
a. Find the net electric force (magnitude and direction) that
acts on the charge at the origin.
b. Find the net electric field (magnitude and direction) at x =
25 cm.
c. Find the net electric force (magnitude and direction) on a
charge Q...

A point charge of 5.00 μC is placed at the origin and a second
point charge of -3.00 μC is placed at x = 0.450 m. Where along the
x-axis can a third charge be placed so that the net force on it is
zero?
What if both charges are positive?
Please answer the bolded part of the question as well!

A meter stick is found to balance at the 49.7-cm mark when
placed on a fulcrum. When a 44.0-gram mass is attached at the
24.5-cm mark, the fulcrum must be moved to the 39.2-cm mark for
balance. What is the mass of the meter stick?
________g

A meter stick balances horizontally on a knife-edge at the 50.0
cm mark. With two 3.94 g coins stacked over the 38.7 cm mark, the
stick is found to balance at the 48.7 cm mark. What is the mass of
the meter stick?

A particle of mass 0.350 kg is attached to the 100-cm mark of a
meter stick of mass 0.125 kg. The meter stick rotates on a
frictionless, horizontal table with an angular speed of 6.00
rad/s.
(a) Calculate the angular momentum of the system when the stick
is pivoted about an axis perpendicular to the table through the
50.0-cm mark.
_____ kg · m2/s
(b) Calculate the angular momentum of the system when the stick
is pivoted about an axis...

A point charge q1 = -1.5 μC is placed at x = 0 and y = +5 cm. A
second point charge q2 = -6 μC is placed at x = +5 cm and y = 0.
Determine the magnitude of the net electric field at the origin and
the direction of the electric field as an angle measured from the
+x axis. Use k = 9.00 109 N·m2/C2.

1. A uniform meter stick is supported by a knife edge at the
50.0 cm mark and has a masse of 4.44 kg hanging from the 11.80 cm
mark. A second mass of 7.04 kg should be hung at the _____ cm mark
to keep the stick balanced?
2.

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