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enot [183]
3 years ago
8

Which statement best defines why sound waves are mechanical waves?

Physics
2 answers:
ELEN [110]3 years ago
8 0

Answer:

A. They require a medium in which to travel

Explanation:

Annette [7]3 years ago
7 0
The correct answer among the choices presented above is option A. Sound waves are considered as mechanical waves because they require a medium in which they can travel through. A mechanical wave is a wave that cannot transmit energy in a vacuum. It needs something to move energy.<span />
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If you can walk 3 miles per hour, how much is that in meters per second?
deff fn [24]

To convert 3 miles per hour into m/s, first we have to convert miles in to meter and then hour in to second.

As 1 miles = 1.609344 km = 1.609344\times 10^3 m = 1609.3 m and1 hour=60 minutes = 60\times 60= 3600s

Therefore,

3 miles/ h=\frac{3\times1609.3m}{3600s} =1.34 m/s



4 0
3 years ago
When Kevin pulls his cotton shirt off his body, the electrons get transferred from the (shirt or body) to the (shirt or body) .
Masja [62]
<span>When Kevin pulls his cotton shirt off his body, the electrons get transferred from the shirt (in form of static charges i.e. electrons to the body. So, the shirt becomes positively charged and Kevin’s body becomes negatively charged.

As a result of charge transfer from the shirt to the body, we can hear a crackling sound. or if observed in dark, a sparkle can be seen.</span>
6 0
3 years ago
A steel ball is dropped from a building's roof and passes a window, taking 0.12 s to fall from the top to the bottom of the wind
Dvinal [7]
The top of the WINDOW is 19 meters from the ground. also steel balls dont bounce.
8 0
4 years ago
As charges move in a closed loop, they
mamaluj [8]

As charges move in a closed loop, they gain as much energy as they lose.

<h3>What is principle of conservation of energy?</h3>
  • According to the principle of conservation of energy, in a closed or isolated system, the total energy of the system is always conserved.
  • The energy gained by the particles or charges in a closed system is equal to the energy lost  by the charges.

Thus, we can conclude the following based on principles of conservation of energy;

  • As charges move in a closed loop, they gain as much energy as they lose.

Learn more about conservation of energy here: brainly.com/question/166559

8 0
2 years ago
What do these letters stand for<br> P=mv
victus00 [196]

Answer:

The equation for momentum of a piece of matter.

In either case, the momentum would be less than a linebacker hitting you at full speed. The equation for momentum is written: p = mv where p stands for momentum. That is, mass times velocity equals momentum.

Explanation:

Hope This Helps

Have A Great Day

4 0
2 years ago
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