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larisa86 [58]
3 years ago
10

Explain why a sound becomes louder as you move closer to the source of the sound.​

Physics
1 answer:
Marizza181 [45]3 years ago
6 0

Answer:

The wavelength of frequency of the sound are closer to each other

Or

The frequency of the sound increases as it moves towards you

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How much time does it take the cheetah to travel 500 meters, if its average speed is 70 meters per second?
Anettt [7]

l=500m

speed=70m/s

t=?

t=500/70=7.14s

7 0
3 years ago
The beginning development of a star is marked by a supernova explosion, with the gases present in the nebula being forced
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The beginning development of a star is marked by a supernova explosion, with the gases present in the nebula being forced to scatter. As the star shrinks, radiation of the surface increases and create pressure on the outside shell to push it away and forming a planetary nebula or white dwarf.

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3 years ago
Define Potential Energy
Mariulka [41]

Answer:

potential energy is a type of energy an object has because of it's position

5 0
3 years ago
(a) The electric potential due to a point charge is given by V = kq⁄r where q is the charge, r is the distance from q and k = 8.
LiRa [457]

Answer:

a)  [volts] = [N m / C],

b) The lines or surface that has the same potential are called equipotential

c) the equipotential lines must also be perpendicular to the electric field lines

Explanation:

a) find the units of the volt

the electric potential energy is

             V = k q / r

             V = [N m² / C²] C / m

              V = [N m / C]

The electric potential is defined as

             V = E .s

             V = [N / C] [m]

             V = [N m / C] = [volt]

we see that in the two expressions the same result is obtained therefore the volt is

            [volts] = [N m / C]

b) The lines or surface that has the same potential are called equipotential surfaces, the great utility of these lines or surfaces is that a face can be displaced on it without doing work.

c) The electric potential is defined as the gradient of the electric field

             v =  - \frac{dE}{dx} i^

therefore the equipotential lines must also be perpendicular to the electric field lines

4 0
3 years ago
Any two waves that meet as they travel through the same medium will interact. If the two waves are in phase their crests will co
MrRissso [65]

Answer:

constructive

alpitude

6 0
3 years ago
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