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3 years ago

A magnetic field forms around a moving electric charge, resulting in a magnetic field.

Physics

1 answer:

Nookie1986 [14]3 years ago

3 0

B.
how electric charges can be used to create a magnetic field
(how I know, just took it, the test I mean)

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The plates of a parallel-plate capacitor are oppositely charged and attract each other. Find the expression for the force one pl

Mamont248 [21]

The force exerted by one plate for two parallel plates arrangement is F = QE/2.

<h3>Force one plate exerts on the other</h3>

The force exerted by one plate for two parallel plates arrangement is given as follows;

F = QE/2

where;

Q is the charge on one plates
E is the electric field due to the charge
F is force exerted by one plate

Thus, the force exerted by one plate for two parallel plates arrangement is F = QE/2.

Learn more about force between parallel plates here: brainly.com/question/13590045

5 0

2 years ago

A worker pushes a 200-N box (weight of box, you have to find mass) resting on a level floor with a force of 30 N. What is the ac

QveST [7]

For the problem we will apply the concepts related to Newton's second law. Recall that this is defined as the product between mass and acceleration, and that in special cases, when the acceleration is equivalent to the force of gravity, the force is equivalent to the weight of the person. From these relationships we will find the mass, and then the acceleration with the given force.

$F_w = mg$

Here,

$F_w$ = Force

m = Mass

g = Gravity

Replacing and rearranging we have that the mass is,

$m = \frac{F_w}{g} = \frac{200}{9.81}$

$m = 20.387kg$

Now using the value of the force, but solving for the acceleration with the previous value of the mass we have,

$F = 30N$

$a = \frac{F}{m}$

$a = \frac{30}{20.387}$

$a = 1.47m/s^2$

Therefore the acceleration of the box is $1.47m/s^2$

8 0

3 years ago

A scientific law tells us what nature will do under certain conditions.<br> True<br> False

sergij07 [2.7K]

Hello There!

This Is A "True" Statement.

<em>A scientific law tells us what nature will do under certain conditions.</em>

6 0

3 years ago

How did advances in technology open the way for world exploration?

NemiM [27]

<span>they took advantage of innovations in sailing technolgy that allowed ships such as the caravel to sail against the wind.</span>

6 0

3 years ago

Learning Goal: How do 2 ordinary waves build up a "standing" wave? A very generic formula for a traveling wave is: y1(x,t)=Asin(

zheka24 [161]

Answer:

Explanation:

=Asin(kx−ωt). This general mathematical form can represent the displacement of a string, or the strength of an electric field, or the height of the surface of water, or a large number of other physical waves!

Part C Find ye(x) and yt(t). Remember that yt(t) must be a trig function of unit amplitude. Express your answers in terms of A, k, x, ω, and t. Separate the two functions with a comma. Use parentheses around the argument of any trig functions.

Part E At the position x=0, what is the displacement of the string (assuming that the standing wave ys(x,t) is present)? Part G From

Part F we know that the string is perfectly straight at time t=π2ω. Which of the following statements does the string's being straight imply about the energy stored in the strJHJMNMMUJJHTGGHing?

a.There is no energy stored in the string: The string will remain straight for all subsequent times.

b.Energy will flow into the string, causing the standing wave to form at a later time.

c.Although the string is straight at time t=π2ω, parts of the string have nonzero velocity. Therefore, there is energy stored in the string.

d.The total mechanical energy in the string oscillates but is constant if averaged over a complete cycle.

3 0

3 years ago