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Sloan [31]
3 years ago
12

A constant electric field of 5.00 N/C points along the positive x-direction. An electron, initially at rest, moves a distance of

2.00 m in this space. How fast is the electron moving after its 2.00 m journey
Physics
1 answer:
Genrish500 [490]3 years ago
7 0

Answer:

1.875 x 10⁶ m /s .

Explanation:

Force on electron = E e where E is electric field and e is charge on electron

acceleration generated = Ee / m where m is mass of the electron .

Putting the values

acceleration generated = 5 x 1.6 x 10⁻¹⁹ / 9.1 x 10⁻³¹

= .879 x 10¹² m /s²

v² = u² + 2 as , initial velocity u = 0 , displacement s = 2 m

v² = 0 + 2 x .879 x 10¹² x 2

v = 1.875 x 10⁶ m /s .

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An air bubble underwater has the same pressure as that of the surrounding water. As the air bubble rises toward the surface (and
goldenfox [79]

Answer:

D Remains constant

Explanation:

3 0
3 years ago
a dragster gets to a peed of 112m/s over a distance of 300m from rest. Determine the acceleration of the dragster.
madreJ [45]

A dragster gets to a speed of 112 m/s over a distance of 300 m from the rest, then the acceleration will be 20.9 m/s².

<h3>What is Acceleration?</h3>

The rate of change in an object's velocity with respect to time is known as acceleration in mechanics. The vector quantity of accelerations. The direction of the net force that is acting on an object determines its acceleration.

Since acceleration has both a magnitude and a direction, it is a vector quantity. Velocity is a vector quantity as well. The definition of acceleration is the change in velocity vector over a time interval divided by the time interval.

According to the question, the given values are :

Final velocity, v = 112 m/s.

Initial velocity, u = 0 m/s

Distance, s = 300 m.

Use the equation of motion,

v² - u² = 2as

112 ² - 0 = 2 (a)(300)

a = 12544/600

a = 20.9 m/s².

Hence, the acceleration of the dragster will be 20.9 m/s².

To get more information about Acceleration :

brainly.com/question/20382454

#SPJ1

3 0
1 year ago
1.The<br> across each resistor is<br> the same in a series circuit.<br> ) voltage<br> current
Ber [7]

Answer:

The answer is Current.

Explanation:

In a series circuit, every component will have the same <u>current</u>.

In parallel circuit, all <u>voltage</u> of component remains the same.

3 0
3 years ago
Read 2 more answers
At a certain time a particle had a speed of 17 m/s in the positive x direction, and 3.0 s later its speed was 28 m/s in the oppo
dangina [55]

Answer:

i wanna say 11 forgive me if wrong.

Explanation:

5 0
3 years ago
An a.c. supply is connected to a wire stretched between the poles of a magnet. Which way does the wire move?​
snow_lady [41]
The wire vibrates back and forth between the poles of the magnet.
The frequency of the vibration is the frequency of the AC supply.

7 0
2 years ago
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