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beks73 [17]
3 years ago
5

Is light the same thing as electromagnetic radiation ?

English
1 answer:
Greeley [361]3 years ago
6 0

Answer:

not entirely, but also yes.

Explanation:

"Electromagnetic (EM) radiation is a form of energy that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma rays. Sunlight is also a form of EM energy, but visible light is only a small portion of the EM spectrum, which contains a broad range of electromagnetic wavelengths."

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How many different 55​-letter words can be made a. if the first letter must be Upper K or Upper XK or X and no letter may be​ re
Vika [28.1K]

Answer:

(a) The number of 5-letter word that can be formed (without repetition) such that the first letter is K or X is 607,200.

(b) The number of 5-letter word that can be formed (with repetition) such that the first letter is K or X is 913,952.

(c) The number of 5-letter word that can be formed (without repetition) such that the first letter is K or X and the last is J is 24,288.

Explanation:

In this case we need to form a 5 letter word.

(a)

The condition applied is: 1st letter is K or X.

The word will of the form: K _ _ _ _ or X _ _ _ _

There are 2 ways to fill the first space, i.e. with either K or X.

Repetition is not allowed.

The remaining 4 spaces can be filled in (25 × 24 × 23 × 22) ways.

Then the total number of 5-letter word that can be formed (without repetition) such that the first letter is K or X is:

Number of 5-letter word = 2 × 25 × 24 × 23 × 22 = 607200

Thus, the number of 5-letter word that can be formed (without repetition) such that the first letter is K or X is 607,200.

(b)

In case the repetition are allowed the number of 5-letter word that can be formed (without repetition) such that the first letter is K or X is:

Number of 5-letter word = 2 × 26 × 26 × 26 × 26 = 913952

Thus, the number of 5-letter word that can be formed (with repetition) such that the first letter is K or X is 913,952.

(c)

The condition applied is: 1st letter is K or X and the last letter is J.

The word will of the form: K _ _ _ J or X _ _ _ J

There are 2 ways to fill the first space, i.e. with either K or X, and the last with J.

Repetition is not allowed.

The remaining 3 spaces can be filled in (24 × 23 × 22) ways.

Then the total number of 5-letter word that can be formed (without repetition) such that the first letter is K or X and the last is J is:

Number of 5-letter word = 2 × 24 × 23 × 22 = 24288

Thus, the number of 5-letter word that can be formed (without repetition) such that the first letter is K or X and the last is J is 24,288.

3 0
3 years ago
When analyzing an argument, why is it important to understand the speaker or writer's audience?
Sveta_85 [38]

Answer:

c

Explanation:

Seems the most logical

5 0
2 years ago
Read 2 more answers
Which is smaller 1/2 or 1/4
Kipish [7]

1/4 is smaller

1/2 is equal to 0.5 and 1/4 is equal to 0.25

6 0
3 years ago
An analysis that examines the techniques and ingredients that authors or speakers select to communicate their message is called
KiRa [710]

Answer:

<h3>A rhetorical analysis considers all elements of <em>the rhetorical situation--the audience, purpose, medium</em>, <u>and context--within which a communication was generated and</u> delivered in order to make an argument about that communication.</h3>
5 0
1 year ago
Use the question words in parentheses to form a question: Roger's grandfather had a small farm in the county (whose)
uranmaximum [27]

Answer:

The question we can form using the information in the sentence and the word in parentheses is:

Whose grandfather had a small farm in the county?

Explanation:

<u>"Whose" is a pronoun used to indicate possession, be it in a declarative sentence or in an interrogative one. If I wish to know, for instance, who the owner of a car parked in front of my house is, I can ask: Whose car is this?</u>

<u>Since we are supposed to use "whose" to ask a question as well as the information in the given sentence, we need to find a possession relationship to ask about.</u> Of course, the farm has an owner - the grandfather. But the way the sentence is structure does not allow us to ask about him while using "whose". However, the grandfather "belongs", so to speak, to Roger, and the structure allows us to use "whose" to ask about him. Therefore, the question we can form is:

Whose grandfather had a small farm in the county?

6 0
2 years ago
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