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kykrilka [37]
3 years ago
9

A wave's _______________ and its frequency have a reciprocal relationship.

Physics
2 answers:
Varvara68 [4.7K]3 years ago
8 0
Wavelength and frequency have a reciprocal relationship. If one doubles, the other halves.
Marina86 [1]3 years ago
4 0

wave frequency and its wavelength is related by the following relation

frequency = \frac{speed}{wavelength}

we can also show this by

f = \frac{v}{\lambda}

now if speed of the wave remains constant then we can say that frequency of wave is inversely depends on the wavelength.

so we can say

<u>wavelength of wave is inversely depends on its frequency</u>

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a merry go round has a radius of 8 meters makes 2 revolutions every 2.5 minutes. A. express the angular speed of the merry go ar
pantera1 [17]

Answer:

a).v=83.77x10^{-3} rad/s

b).v=0.8rpm

c).v=0.5865 m/sec.

Explanation:

Given:

r=8m

v=\frac{2rev}{2.5minutes}

a).

2 rev*\frac{2\pirad}{1rev}=4\pi  rad

t=2.5minutes*\frac{60s}{1minute}=150s

The angular speed in radians per seconds is

v=\frac{4\pi}{150s}=83.77x10^{-3} rad/s

b).

v=\frac{2rev}{2.5minute}rpm

v=0.8rpm

c)

Child's distance per revolution

(pi*2r) = 43.988 metres.  

v=(43.988 x 0.0133333) = 0.5865 m/sec.

4 0
3 years ago
Which phrase describes an electromagnetic wave
Viefleur [7K]

Answer:

<u>a transverse wave consisting of changing electric fields and changing magnetic fields.</u>

Explanation:

An electromagnetic wave is a wave generated by the vibration of perpendicular electric and magnetic fields, which may progate through vacuum (empty space) or a material medium.

All electromagnetic waves propagate at the same speed in vacuum. This speed is approximately 3.0 × 10⁸ m/s. Which is generally referred as the speed of light, but it is the same constant speed of any electromagnetic wave in the vacuum, c.

In general, waves transfer energy when they travel, but only electromagnetic waves can travel in vacuum. The waves that cannot travel in vacuum are named mechanical waves (they need a medium to travel).

There are two types of waves depending on how they propagate: transverse waves and longitudinal waves. The transverse waves travel perperdiculary to the direcction of the vibration, while longitudinal waves travel parallel to the direction of the vibration.

The classical example of transverse waves is a rope that oscilates up and down. The classical example of  longitudinal waves is a spring that you pull and push by an end and so it  moves forward and back. Sound is also a longitudinal wave.

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2 years ago
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Answer:

lol sure

Explanation:

3 0
3 years ago
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3. Ultraviolet can kill these. <br><br>8words and 2nd letter starts with an A​
Karo-lina-s [1.5K]

Answer:

Bacteria

Explanation:

UV kills bacteria and its 8 letters

7 0
3 years ago
If a boy (m = 50kg) at rest on skates is pushed by another boy who exerts a force of 200 N on him and if the first boy's final v
AVprozaik [17]
<span>F* t = (m x v_final) - (m x v_initial)

200 x t = 50x8 - 50x0

t= 50 x 8 /200

t= 2s </span>
8 0
3 years ago
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