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Kay [80]
3 years ago
13

An electric field’s direction points from the bottom of the screen (or paper) to the top of the screen. If you place an electron

in the middle of the screen, in which direction will it move?
a. It will move to the top of the screen

b. It will not move

c. It will move to the bottom of the screen

d. It cannot be determined where it will move.
Physics
1 answer:
tekilochka [14]3 years ago
4 0

Answer:

c

Explanation:

Solution) It is option (c)

It will move to bottom of the screen

We know that the direction of electric field is the direction of in which test positive charged is moved. Therefore, electron having negative charged is moved in the direction opposite to electric field.  

Hence, it will move to the bottom of the screen

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Consider two parallel plate capacitors. The plates on Capacitor B have half the area as the plates on Capacitor A, and the plate
vichka [17]

Answer:

CB = 4.45 x 10⁻⁹ F = 4.45 nF

Explanation:

The capacitance of a parallel plate capacitor is given by the following formula:

C = ε₀A/d

where,

C = Capacitance

ε₀ = Permeability of free space

A = Area of plates

d = Distance between plates

FOR CAPACITOR A:

C = CA = 17.8 nF = 17.8 x 10⁻⁹ F

A = A₁

d = d₁

Therefore,

CA = ε₀A₁/d₁ = 17.8 x 10⁻⁹ F   ----------------- equation 1

FOR CAPACITOR B:

C = CB = ?

A = A₁/2

d = 2 d₁

Therefore,

CB = ε₀(A₁/2)/2d₁

CB = (1/4)(ε₀A₁/d₁)

using equation 1:

CB = (1/4)(17.8 X 10⁻⁹ F)

<u>CB = 4.45 x 10⁻⁹ F = 4.45 nF</u>

5 0
3 years ago
In a game of tug of war, a rope is pulled by a force of 182 N to the right and by a force of 108 N to the left. Calculate the ma
Mrac [35]

Answer:

74 N to the right

Explanation:

the forces are going in opposite horizontal directions, meaning that they are directly opposing each other. this means that you can subtract the force applied in the direction that is greater from the direction that is less to get the net force for the greater direction

this means 182 N - 108 N = 74 N to the right

6 0
3 years ago
Alan leaves Los Angeles at 8:00 a.m. to drive to San Francisco, 400 mi away. He travels at a steady 46.0 mph . Beth leaves Los A
elena-14-01-66 [18.8K]

Answer:

25 min, 48 sec

Explanation:

Alan:

t = d/v

  = 400 mi / 46 mph = 8.70 hr

So it took Alan 8.70 hrs; from 8 am, that's 4:42 pm that he arrives.

t = d/v

  = 400 mi / 55 mph = 7.27 hr

So it took Beth 7.27 hrs; from 9 am, that's 4:16:12 that she arrives.

4:42 - 4:16:12 = 25.8 minutes = 25 minutes, 48 sec

4 0
4 years ago
.<br>1. How does the arrangement of a pulley system affect its ideal mechanical advantage​
lukranit [14]

Answer: In a pulley, the ideal mechanical advantage is equal to the number of rope segments pulling up on the object. The more rope segments that are supporting to do the lifting work, the less pressure that is needed for the job.

Explanation:

7 0
3 years ago
Which of newtons laws accounts for the following statement " Negative acceleration is proportional to applied braking force "
fenix001 [56]
I believe that would be his second law!
4 0
4 years ago
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