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3 years ago

How many degrees equal π in radians? How many revolutions (turns) equal π radians?

Physics

1 answer:

kodGreya [7K]3 years ago

6 0

Answer:

It follows that the magnitude in radians of one complete revolution (360 degrees) is the length of the entire circumference divided by the radius, or 2πr / r, or 2π. Thus 2π radians is equal to 360 degrees, meaning that one radian is equal to 180/π ≈ 57.295779513082320876 degrees.

Explanation:

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Which statements describe elliptical galaxies? *Select the two correct answers.*

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Elliptical galaxies are galaxies that are shaped like an ellipse. An ellipse is oval in shape, which means elliptical galaxies are oval in shape.

The two correct statements that describe elliptical galaxies are:

B. They are the most common galaxy type.

C. They typically contain very little gas and dust.

Elliptical galaxies are galaxies where you will find little or no gas and dust. The galaxies that are numerous in number are the elliptical galaxies.

In the elliptical galaxy, you can't find any spiral component in it.

Therefore, from the above explanation, we can see that option B and C is the correct option.

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3 years ago

Read 2 more answers

A Cessna 150 aircraft has a lift-off speed of approximately 125 km/h. What minimum constant acceleration does this require if th

aivan3 [116]

Answer:

Part a)

$a = 3.65 m/s^2$

Part b)

$t = 9.5 s$

Part c)

$v_f = 55.1 m/s$

Explanation:

Part a)

As we know that it starts from rest and moves on runway by total distance 165 m

so we will have

$v_f^2 - v_i^2 = 2ad$

$v_f^2 - 0 = 2(a)(165)$

$v_f = 125 km/h = 34.7 m/s$

now we have

$a = 3.65 m/s^2$

Part b)

Now for take off time we will have

$v_f - v_i = at$

$34.7 - 0 = 3.65 t$

$t = 9.5 s$

Part c)

$v_f = v_i + at$

$v_f = 0 + (3.65)(15.1)$

$v_f = 55.1 m/s$

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3 years ago

By using 3.2 nm x-rays on human tissue, images can be made showing microtubules in the nuclei of cells. What is the frequency of

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Frequency of any wave = (speed) / (wavelength)

Frequency = (3 x 10⁸ m/s) / (3.2 x 10⁻⁹ m) = 9.375 x 10¹⁶ Hz

= 93,750,000 GHz

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3 years ago

Look at the series circuit below and fill in the gaps that follow based on the information provided.

slega [8]

Answer:

Explanation:

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3 years ago

Explain the term equinox in your own words.

In-s [12.5K]

Answer: Equinox comes from the Latin words aequi, which means "equal," and nox, which means "night." The vernal equinox is considered the first day of spring: finally, the day and night are of equal length.

Explanation: UwU O///O

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3 years ago

How many degrees equal π in radians? How many revolutions (turns) equal π radians? ​

How many degrees equal π in radians? How many revolutions (turns) equal π radians?