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3 years ago

In what do electromagnetic waves cause disturbances when they transfer

Physics

2 answers:

IrinaVladis [17]3 years ago

5 0

Both electric and magnetic fields

Makovka662 [10]3 years ago

5 0

Answer should be b
hope this helps

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The position of an object in simple harmonic motion is described by the following equation: y=(0.50 m)cos(pi/2)t. What is the am

Kazeer [188]

Answer:

C. 0.50 m

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2 years ago

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Modern observations have shown that the geometry of the universe is ____.

lesantik [10]

Modern observations have shown that the geometry of the universe is flat and the universe mist be infinite.

<h3>What is geometry?</h3>

Geometry refer to a branch of mathematics that encapsulates measurements of lines, shapes, dimensions, points and shapes.

Therefore, Modern observations have shown that the geometry of the universe is flat and the universe mist be infinite.

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1 year ago

A particularly beautiful note reaching your ear from a rare stradivarius violin has a wavelength of 39.1 cm. the room is slightl

raketka [301]

The wavelength of the note is $\lambda = 39.1 cm = 0.391 m$ . Since the speed of the wave is the speed of sound, $c=344 m/s$ , the frequency of the note is
$f= \frac{c}{\lambda}=879.8 Hz$

Then, we know that the frequency of a vibrating string is related to the tension T of the string and its length L by
$f= \frac{1}{2L} \sqrt{ \frac{T}{\mu} }$
where $\mu=0.550 g/m = 0.550 \cdot 10^{-3} kg/m$ is the linear mass density of our string.
Using the value of the tension, T=160 N, and the frequency we just found, we can calculate the length of the string, L:
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3 years ago

Use the image to determine the volume of the rock.

maria [59]

Answer:

12 ml

Explanation:

The initial volume in the cylinder is 20 ml

adding the rock adds volume to the cylinder

the new volume is 32 ml .....the increase in volume is the volume of the rock : 32 - 20 = 12 ml volume of rock

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1 year ago

Before the positive psychology movement, psychology focused mainly on

KonstantinChe [14]

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3 years ago

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