An electron is accelerated by a constant electric field of
magnitude 300 N/C.
(a) Find the acceleration of the electron.
1Your answer was incorrect, but has changed from what was
graded.
Your response differs significantly from the correct answer. Rework
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m/s2
(b) Use the equations of motion with constant acceleration to find
the electron's speed after 8.00 10-9 s, assuming it starts from
rest.
2 m/s
Using the symmetry of the arrangement, calculate the magnitude
of the electric field in N/C at the center of the square given that
qa = qb = −1.00 μC and qc = qd = + 4.93 μCq. Assume that the square
is 5 m on a side.
A uniform electric field of magnitude 40 N/C is directed downward. What are the magnitude and the direction of the force on a + 4C charge placed in this electric field? 160 N directed upward 160 N directed downward 10 N directed downward 0.1 N directed downward
A proton is acted on by a uniform electric field of magnitude
313 N/C pointing in the negative z-direction. The particle is
initially at rest.
(a) In what direction will the charge move?
(b) Determine the work done by the electric field when the
particle has moved through a distance of 3.75 cm from its initial
position.
____________J
(c) Determine the change in electric potential energy of the
charged particle.
___________J
(d) Determine the speed of the charged particle.
_______m/s
A uniform electric field with a magnitude of 6 × 10^6 N/C is
applied to a cube of edge length 0.1 m as seen in Fig 22-2 above.
If the direction of the E - field is along the +x-axis, what is the
electric flux passing through the shaded face of the cube?
The electric field between two parallel plates is uniform, with
magnitude 576 N/C. A proton is held stationary at the positive
plate, and an electron is held stationary at the negative plate.
The plate separation is 4.06 cm. At the same moment, both particles
are released.
(a)
Calculate the distance (in cm) from the positive plate at which
the two pass each other. Ignore the electrical attraction between
the proton and electron.
_______cm
(b)
Repeat part (a) for a sodium...
The electric field near the surface of Earth points downward and has a magnitude of 130 N/C. (a) Compare the upward electric force on an electron with the downward gravitational force. (b) What magnitude charge should be placed on a penny of mass 2 g so that the electric force balances the weight of the penny near Earth?s surface? C
A beam of electrons is shot into a uniform downward electric
field of magnitude 1.11x10^3 N/C. The electrons have an initial
velocity of 1.02x10^7 m/s, directed horizontally. The field acts
over a small region, 5.00 cm in the horizontal direction.
(a)Find the magnitude and direction of the electric force
exerted on each electron.
-magnitude:
-direction:
(b) How does the gravitational force on an electron compare with
the electric force?
-The gravitational force is much smaller than the
electric force....
The electric field near Earth's surface points downward and has
a magnitude of approximately 104 N/C. What is the force
(Fe) on an
electron due to this electric field?
magnitude= ??
Find the ratio of the magnitude of this force to the magnitude
of the gravitational force
(Fg) on the
electron..
Fe/ Fg=?
A uniform electric field between two parallel plates has a
magnitude of 20 N/C and directed downward. Draw the E-field
indicating +/- signs which plate is positive and which plate is
negative?