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denis-greek [22]
3 years ago
7

Which statement is true for a sound wave entering an area of warmer air?

Physics
2 answers:
FromTheMoon [43]3 years ago
6 0
<h3><u>Answer;</u></h3>

A:The wave travels faster and with the same wavelength.

<h3><u>Explanation;</u></h3>
  • <em><u>Sound waves are mechanical waves which require a material medium for transmission. </u></em>
  • The transmission of sound waves involves the vibration of particles of the material medium thus movement of energy from one point to another.
  • <em><u>Sound waves entering a warmer air means that the kinetic energy of the air particles will increase and thus the vibration of particles will be increased and thus the speed of transmission of sound waves increases. </u></em>
Sergio [31]3 years ago
3 0
The answer is A........The sound is transferred by collisions of molecules. Therefore sound waves will travel faster on warm air because collisions of molecules of air in warm air are greater.
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sertanlavr [38]
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4 0
2 years ago
A car accelerates from rest at 3.6 m/s 2 . How much time does it need to attain a speed of 5 m/s?
Olenka [21]

car starts from rest

v_i = 0

final speed attained by the car is

v_f = 5 m/s

acceleration of the car will be

a = 3.6 m/s^2

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t = 1.39 s

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6 0
3 years ago
A sample of an unknown substance has a mass of 89.5 g. If 345.2 J of heat are required to heat the substance from 285 K to 305 K
Zinaida [17]

Heat gained in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:<span>

Heat = mC(T2-T1)
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7 0
2 years ago
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yanalaym [24]

Answer:

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