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Lemur [1.5K]
2 years ago
12

Which describe radio waves? check all that apply. Low frequency high frequency short wavelength long wavelength low energy trans

fer high energy transfer
SAT
1 answer:
drek231 [11]2 years ago
4 0

Answer:

Low Frequency, Long Wavelength, and Low Energy Transfer

Explanation:

Radio waves are on the larger(and lower frequency) side of the electromagnetic spectrum. These longer wavelengths mean that radio waves have a lower frequency because it takes longer for larger waves to travel. Therefore, less radio waves can travel a certain distance in a minute than a wave of a shorter wavelenght(and therefore lower frequency). Radio waves are considered a low-energy transfer wave. This is because they can be used in most environments for communication, air-traffic control, and broadcasting with little to no harm to the organisms around them. Even though radio waves can be found all around us, because they don't carry much energy, we aren't harmed by the radio waves.

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i have long seminar about good techars.I don't know where to start, please help and how to ask some questions about good teacher
Alex17521 [72]

Answer:

a good techer isnt forceful.

Explanation:

ive had teachers that made me read a book. and I ended up not reading books anymore. but recently I had a teacher let me pick a book i liked and then i had to explain it. I found a new love for reading.

4 0
3 years ago
Postsecondary education refers to:
harina [27]

The correct answer is A: All education after high school.

Further Explanation:

Post secondary school can refer to community college, technical college, and any type of education that a person receives after they have graduated high school.

Some types of education after high school are;

  • cosmetology school
  • college
  • vocational school
  • IT school
  • a non degree certificate school

Secondary school is usually considered a person that is currently in high school.

Learn more about post secondary education at brainly.com/question/10394121

#LearnwithBrainly

8 0
3 years ago
Which of the following activities does not improve stability?.
charle [14.2K]
Nothing shows try posting a photo
8 0
2 years ago
At what time do guests start arriving for the 9 a. M. ​ opening?
Umnica [9.8K]

The time guests should arrive for the 9 am opening is 8:30am.

<h3>What time should guests start arriving?</h3>

When guests are expected at an event, best practice is to arrive 15 minutes before the opening time. If 30 minutes is subtracted from 9am it is 8:30 am.

If guests aim to arrive at exactly at 9am, it is likely that they would not be at the opening on time.

Here are the options to this question: A. 1 a.m. B. 9 a.m. C. 6 a.m. D. ​8:30 a.m.

To learn more about how to calculate time, please check: brainly.com/question/26290873

6 0
2 years ago
For a polynomial p(x), the value of p(3) is −2. Which of the following must be true about p(x)?
denpristay [2]

Answer:

<em>D.) The remainder when p(x) is divided by x−3 is −2.</em>

Explanation:

If the polynomial p(x) is divided by a polynomial of the form x+k (which accounts for all of the possible answer choices in this question), the result can be written as

p(x) /x+k  = q(x) +  r /x+k

where q(x) is a polynomial and r is the remainder. Since x+k is a degree-1 polynomial (meaning it only includes x1 and no higher exponents), the remainder is a real number.

Therefore, p(x) can be rewritten as p(x)=(x+k)q(x)+r, where r is a real number.

The question states that p(3)=−2, so it must be true that

−2=p(3)=(3+k)q(3)+r

Now we can plug in all the possible answers. If the answer is A, B, or C, r will be 0, while if the answer is D, r will be −2.

A. −2=p(3)=(3+(−5))q(3)+0

−2=(3−5)q(3)

−2=(−2)q(3)

This could be true, but only if q(3) = 1

B. −2=p(3)=(3+(−2))q(3)+0

−2=(3−2)q(3)

−2=(−1)q(3)

This could be true, but only if q(3) = 2

C. −2=p(3)=(3+2)q(3)+0

−2=(5)q(3)

This could be true, but only if q(3) =  −2 /5

D. −2=p(3)=(3+(−3))q(3)+(−2)

−2=(3−3)q(3)+(−2)

−2=(0)q(3)+(−2)

<em> This will always be true no matter what q(3) is.</em>

<em>Of the answer choices, the only one that must be true about p(x) is D, that the remainder when p(x) is divided by x−3 is -2.</em>

4 0
3 years ago
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