Question

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?

Answer #1

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?

A beam of electrons is shot into a uniform downward electric
field of magnitude 1.10 103 N/C. The electrons have an initial
velocity of 1.01 107 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. (b) How does the gravitational force on an electron
compare with the electric force? (c) How far has each electron
moved in the vertical...

A proton moves at 5.20 105 m/s in the
horizontal direction. It enters a uniform vertical electric field
with a magnitude of 9.40 103 N/C. Ignore any
gravitational effects.
(a) Find the time interval required for the proton to travel
4.50 cm horizontally.
________ ns
(b) Find its vertical displacement during the time interval in
which it travels 4.50 cm horizontally. (Indicate direction with the
sign of your answer.)
__________mm
(c) Find the horizontal and vertical components of its velocity
after it...

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 104 m/s until it stops. Determine (a) the acceleration of the electron and (b) the distance traveled by the electron before stopping.

At a particular instant, a proton is traveling horizontally with
a velocity of 694 km/s directed to the east through a region of
uniform magnetic field that is directed vertically upward and has a
magnitude of 75.8 mT. What is the radius of the circular path along
which the proton is traveling? Give you answer in centimeters.
[Assume that this experiment takes place in deep space so that the
effect of gravity is negligible.]

A proton moves at 5.00 105 m/s in the horizontal
direction. It enters a uniform vertical electric field with a
magnitude of 8.20 103 N/C. Ignore any gravitational
effects.
(c) Find the horizontal and vertical components of its velocity
after it has traveled 6.00 cm horizontally.

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