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solmaris [256]
3 years ago
14

A bicyclist is in a 50-km race. She says she had an average velocity of 35.

Physics
1 answer:
zlopas [31]3 years ago
8 0
The correct answer to this is (A. Units Only).

It shows that there is a velocity of 35, but the units are missing.
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Which wave causes the medium to vibrate only in a direction not parallel to the waves motion?
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The correct answer to the question is : Transverse wave.

EXPLANATION :

Before going to answer this question, first we have to understand the longitudinal and transverse wave.

LONGITUDINAL WAVE : A longitudinal wave is a mechanical wave in which the direction of vibration of particles is parallel to the direction of wave propagation. It moves in the form of compression and rarefaction.

For instance, sound wave.

TRANSVERSE WAVE : A transverse wave is a mechanical wave in which the direction of vibration of particles is perpendicular to the direction of wave propagation. It moves in the form of crests and troughs.

For instance, the wave created in a pond when a stone is dropped into it.

Hence, the correct answer of this question is transverse wave.

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The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. If sound waves have w
Delvig [45]

To develop this problem it is necessary to apply the concept of Frequency based on speed and wavelength.

According to the definition the frequency can be expressed as

f = \frac{v}{\lambda}

Where,

v = Velocity

\lambda = Wavelength

Our value are given by,

v = 345m/s

\lambda = 63cm

Replacing

f = \frac{345}{0.63}

f = 547.61Hz

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2 years ago
Does a stone lying on the ground have stored energy
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Yes, It has a stored energy in that stone.
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Which of the following best describes what we mean by the universe? (A) all the galaxies in all the superclusters(B) the sum tot
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Answer:

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Universe contains stars as many as grains of sand on all beaches on the Earth. These stars are grouped into galaxies. Milky Way is one of the galaxies.  Galaxies can be grouped into clusters and super-clusters.

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