<span>The correct answer is B. - It would take a ray of light 10.5 light years to travel from Earth to Epsilon Eridani, or vice-versa. Using our current technology it would take far longer than 21.0 years for a space ship from Earth to travel that far - I would have to guess many hundreds of years.</span>
Efficiency = (useful output) / (input)
Efficiency = (35 J) / (125 J) = 0.28 = 28%
To the Earth in less than ten minutes.
As the shock waves travel in concentric outward circles from the epicenter, and the diameter is measured 120 miles,
area of a circle =<span>π</span><span>r*r</span>
d=120
<span>r=<span>120/2</span></span><span>r=60</span><span><span>60*60</span>=3600</span><span>3600*π=11309.734</span>
<span>11309.734 square miles</span>
<u>Communications:</u> Laura develops programs that flag suspicious network activity.
<h3>What is
communication?</h3>
Communication involves the transfer of information from one person (sender) to another (recipient), especially through the use of semiotics, symbols, signs and network devices.
<h3>How to match the scenarios?</h3>
- <u>Communications:</u> Laura develops programs that flag suspicious network activity.
- <u>Healthcare:</u> Greg calibrates electronic scales.
- <u>Manufacturing:</u> Tim ensures the output of a process remains in a defined range.
Read more on communication here: brainly.com/question/26152499
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