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Alekssandra [29.7K]
3 years ago
7

Reflecting telescopes are popular because they're

Physics
2 answers:
Crank3 years ago
6 0
C. easier to build than a refracting telescope

Big mirrors used in reflecting telescopes are easier and cheaper to make than big lenses which would cost more because of the quality of glass required to make refracting telescopes
nasty-shy [4]3 years ago
6 0

C. easier to build than a refracting telescope.

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An astronaut is walking in space. Which of these would have the greatest speed as observed by the astronaut?
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EX
Serjik [45]

Given the distance traveled and time elapsed, the average speed of the train is approximately 26.944m/s.

<h3>What is the average speed of the train?</h3>

Speed is simply referred to as distance traveled per unit time.

Mathematically, Speed = Distance ÷ time.

Given the data in the question;

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First we convert miles to meters and Hours minutes to seconds.

221 miles = ( 221 × 1609.344 )m = 355665.024 meters

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= 10800s + 2400s

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Now, determine the average speed.

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Speed = 26.944m/s

Given the distance traveled and time elapsed, the average speed of the train is approximately 26.944m/s.

Learn more about speed here: brainly.com/question/7359669

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what is the magnitude of the electric force between charges of 0.25 C and 0.11 C at a separation of 0.88 m? if the separation be
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The correct answer is B.
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