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3 years ago

A toy airplane, flying in a horizontal, circular

Physics

2 answers:

Dmitriy789 [7]3 years ago

6 0

The average speed of the airplane is 8.4 m/s

<h3>Further Explanation</h3>

<u>Given :</u>

number of rotation = N = 10

time intervals = Δt = 30 s

radius = R = 4.0 m

<u>Unknown :</u>

average speed = v = ?

<u>Solution :</u>

v = ω × R

v = ( θ / Δt ) × R

v = ( 10 × 2π / 30 ) × 4

v = (8π / 3) m/s

<h3>Learn more</h3>

Newton's Law of Motion: brainly.com/question/10431582

Example of Newton's Law: brainly.com/question/498822

<h3>Answer details</h3>

Grade: High School

Subject: Physics

Chapter: Dynamics

Keywords: Newton, Law, Impulse, Work

Goshia [24]3 years ago

4 0

Answer:

8.4 m/s

Explanation:

The toy completes 10 circle in 30 seconds. So its frequency of revolution is

$f=\frac{10}{30 s}=0.33 Hz$

The periof of revolution is the reciprocal of the frequency, so

$T=\frac{1}{f}=\frac{1}{0.33 Hz}=3 s$

The radius of the circular path is

r = 4.0 m

So the total distance covered by the toy in one circle is the length of the circumference:

$2\pi r$

And so the average speed is

$v=\frac{2\pi r}{T}=\frac{2\pi (4.0 m)}{3 s}=8.4 m/s$

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Answer:

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Explanation:

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2 years ago

The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 310 mW/m2. The maximum value

Aleksandr-060686 [28]

Answer:

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Explanation:

Given that

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sergejj [24]

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