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barxatty [35]
2 years ago
7

Which of the following statements correctly describe the various forms of EM radiation listed above?A) They have different wavel

engths.B) They have different frequencies.C) They propagate at different speeds through a vacuum depending on their frequency.D) They propagate at different speeds through nonvacuum media depending on both their frequency and the material in which they travel.E) They require different media to propagate.
Physics
1 answer:
Aleksandr [31]2 years ago
5 0

Answer: A and B

Explanation:

Electromagnetic radiations are examples of electromagnetic waves with increasing frequency and decreasing wavelength in the following order radiowaves - infrared waves - visible lights - ultraviolet rays- x-rays - gamma rays.

They did not require material medium for their propagation.

The statement above shows that EM radiations possesses different wavelengths and frequency.

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hram777 [196]

The mass m of the object = 5.25 kg

<h3>Further explanation</h3>

Given

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Required

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Solution

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2 years ago
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2 years ago
Which term describes an observable fact, event, or circumstance?
madam [21]

Answer:

Phenomenon

Explanation:

phe·nom·e·non

/fəˈnäməˌnän/

noun

1.

a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question:

"glaciers are unique and interesting natural phenomena"

synonyms

occurrence, event, happening, fact, situation, etc.

2.

a remarkable person, thing, or event:

"the band was a pop phenomenon just for their sales figures alone"

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marvel, sensation, wonder, prodigy, miracle, etc.

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Andreas93 [3]
We know, Period = 1/frequency = 1/20 sec.

So, your final answer is 0.05 sec

Hope this helps!
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an object tied to the end of the string moves in a circle . the force exerted by the string depends on the mass of the object it
otez555 [7]

Answer:Fc=mv^2/r

Explanation:

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