Question

An electron enters a region where charges have created an electric field of magnitude 2000 N / C. The electron enters with an initial velocity of 2.5 x 10^{4 }m/s until it stops. Determine (a) the acceleration of the electron and (b) the distance traveled by the electron before stopping.

Answer #1

An electron traveling at 106m/s horizontally enters a region
with a uniform electric field 10-6N/C directed upward. What will be
the acceleration of the electron (magnitude and direction)?
Calculate its vertical component of velocity 1s after it enters the
region with an electric field. What distance the electron will
travel in horizontal and vertical directions during first 1 second
after entering the region with an electric field?

An electron enters a region of uniform electric field with an
initial velocity of 70 km/s in the same direction as the electric
field, which has magnitude E = 48 N/C. (a) What is the speed of the
electron 1.9 ns after entering this region? (b) How far does the
electron travel during the 1.9 ns interval?

An electron enters a region of uniform electric field with an
initial velocity of 42 km/s in the same direction as the electric
field, which has magnitude E = 51 N/C. (a) What is the speed of the
electron 1.3 ns after entering this region? (b) How far does the
electron travel during the 1.3 ns interval?

An electron enters a region of uniform electric field with an
initial velocity of 56 km/s in the same direction as the electric
field, which has magnitude E = 51 N/C.
(a) What is the speed of the electron 1.5 ns after
entering this region? (b) How far does the
electron travel during the 1.5 ns interval?

An electron enters a region of uniform electric field with an
initial velocity of 47 km/s in the same direction as the electric
field, which has magnitude E = 52 N/C. (a) What is the speed of the
electron 1.5 ns after entering this region? (b) How far does the
electron travel during the 1.5 ns interval?

An electron enters a region of uniform electric field with an
initial velocity of 50 km/s in the same direction as the electric
field, which has magnitude E = 52 N/C.
(a) What is the speed of the electron 1.3 ns after
entering this region? (b) How far does the
electron travel during the 1.3 ns interval?

In a region where there is a uniform electric field that is
upward and has magnitude 3.60×104 N/C ,a small object is
projected upward with an initial speed of 2.32 m/s . The object
travels upward a distance of 6.98 cm in 0.200 s.
What is the object's charge-to-mass ratio q/m
(magnitude and sign)? Assume g = 9.80 m/s2, and ignore air
resistance.

An electron moving with a velocity of 3.0 x 10^6 m/s enters an
electric field of magnitude 1000 N/C. The electric field is
parallel to the motion of the electron. How far does the electron
travel before it comes to rest?

an
electron stops under the action of an uniform electric field when
it has ran a distance of 90cm. If the velocity with which it enters
the field is v=2x10^6 i m/s, not considering the effect of
gravitational force, the magnitude and direction of the electric
field is:
a) 12.65 N/C i
b) 5.65 N/C -i
c) 1.60 N/C -i
d) 6.28 N/C i

An electron is accelerated by a constant electric field of
magnitude 315 N/C.
(a)
Find the acceleration of the electron.
m/s2
(b)
Use the equations of motion with constant acceleration to find
the electron's speed after 1.00 10-8 s,
assuming it starts from rest.
m/s

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