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MA_775_DIABLO [31]
3 years ago
10

What do you understand by waves. what is the equation?

Physics
1 answer:
kipiarov [429]3 years ago
5 0
A wave is a perturbation in a material from the point the perturbation was produced, to the sorrounding area

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What is the volume of the shape below? <br><br> Help me plzzzz
QveST [7]

Answer:

20cm

Explanation:

2 × 5 × 2 = 20

Hope this helps.

3 0
3 years ago
Ocean water conducts electrical current because it contains _____.
icang [17]
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3 years ago
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How is the direction of light changed when it travels from an optically denser medium to an optically rarer medium????? please a
ANTONII [103]

Answer:

The light bends away from the normal

Explanation:

We can solve the problem by using Snell's law:

n_1 sin \theta_1 = n_2 sin \theta_2

where:

n_1 is the index of refraction of the first medium

n_2 is the index of refraction of the second medium

\theta_1 is the angle of incidence (angle between the incoming ray and the normal to the interface)

\theta_2 is the angle of refraction (angle between the outcoming ray and the normal to the interface)

We can rearrange the equation as

sin \theta_2 = \frac{n_1}{n_2}sin \theta_1

In this problem, light travels from an optically denser medium to an optically rarer medium, so

n_1 > n_2

Therefore, the term \frac{n_1}{n_2} is greater than 1, so

sin \theta_2 > sin \theta_1\\\rightarrow \theta_2 > \theta_1

which means that the angle of refraction is greater than the angle of incidence, and so the light will bend away from the normal.

4 0
3 years ago
A student whirls a rubber stopper attached to a string in a horizontal circle above her head. If the radius of the stopper in ci
alexandr402 [8]

Answer:

v = 12.57 m/s

Explanation:

As we know that the radius of the circular motion is given as

R = 50.00 cm

time period of the motion is given as

T = 0.2500 s

now we know that it is moving with uniform speed

so it is given as

v = \frac{2\pi R}{T}

now plug in all data

v = \frac{2\pi(0.50)}{0.25}

v = 12.57 m/s

3 0
3 years ago
Find the speed of a long distance runner who runs 30km in 6 hours
slava [35]

30mi/6hrs is a speed of 5 mph, which converts to a pace of 12 min/mi.

7 0
3 years ago
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