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3 years ago

13

Discuss the importance of frequency, wavelength and energy in

1 answer:

lukranit [14]3 years ago

7 0

Answer:

c = λf

E = h f

the characterization of electromagnetism is given as a function of energy or frequency.

Explanation:

In waves the frequency and donut length are related by the speed of the wave

c = λf

therefore the two quantities are not independent.

The energy of an electromagnetic wave is given by

E = h f

where h is the planck constant and f the frequency of the wave

This energy determines how the wave interacts with the surrounding medium. Low energy waves only create movement of the atomic nuclei and as the energy increases, the electrons are excited.

As a result of the above, the characterization of electromagnetism is given as a function of energy or frequency.

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Galileo conducted controlled experiments to find out if the mass of the pendulum bob affected the period of the swing. Write a d

stiv31 [10]

According to my guesses, he should have swung the pendulam bob and noted its time period. In order to observe the effect of mass, he would have repeated the experiment with varied pendulam bobs. Hope this helped!

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3 years ago

Parallel conducting tracks, separated by 2.20 cm, run north and south. There is a uniform magnetic field of 1.20 T pointing upwa

mars1129 [50]

Answer:

The magnitude of the magnetic force on the rod is 0.037 N.

Explanation:

The magnetic force is given by:

$F = qvBsin(\theta)$

Since the charge (q) is:

$q = I*t$

Where<em> I</em> is the current = 1.40 A, and <em>t</em> the time

And the speed (v):

$v = \frac{L}{t}$

Where <em>L </em>is the tracks separation = 2.20 cm = 0.022 m

Hence, the magnetic force is:

$F = ILBsin(\theta)$

Where <em>B </em>is the magnetic field = 1.20 T and <em>θ</em> is the angle between the tracks and the magnetic field = 90°

$F = ILBsin(\theta) = 1.40*0.022*1.20*sin(90) = 0.037 N$

Therefore, the magnitude of the magnetic force on the rod is 0.037 N.

I hope it helps you!

5 0

3 years ago

In which situation is no work being done?

Nataliya [291]

I would say that work is being done in all the situations because technically in physics work is done whenever force is applied through a distance.

8 0

3 years ago

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Creating a prototype and troubleshooting are steps in the development of?

balu736 [363]

Your answer is a new experiment, since it's something that hasn't been tried before, or has, but resulted in with lots of errors.

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3 years ago

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What is the magnitude of the electric force of attraction between an iron nucleus (q=+26e) and its innermost electron if the dis

iris [78.8K]

Answer:

The magnitude of the force on an electron is 0.069 N.

Explanation:

Given that,

Distance between 1.70 A from the plutonium nucleus, $d=1.5\times 10^{-12}\ m$

The number of electron in iron nucleus is +26e.

To find,

The magnitude of the force between an iron nucleus.

Solution,

Total charge in the plutonium nucleus is, $q=26\times 1.6\times 10^{-19}=4.16\times 10^{-18}\ C$ . The electric force between charges is given by :

$F=\dfrac{kq^2}{d^2}$

$F=\dfrac{9\times 10^9\times (4.16\times 10^{-18})^2}{(1.5\times 10^{-12})^2}$

F = 0.069 N

So, the magnitude of the force on an electron is 0.069 N. Hence, this is the required solution.

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3 years ago