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insens350 [35]
3 years ago
15

What is the wavelength of an earthquake wave if it has a speed of 13 km/s and a frequency of 5 Hz?

Physics
1 answer:
frosja888 [35]3 years ago
6 0

To find the wavelength you divide the wave speed over the frequency. This would be 13/5. The quotient would be 2.4. This means the wavelength is 2,.4 meters or whatever your unit is.

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if the net force of an object is in a positive direction what will the direction of the resulting acceleration be
myrzilka [38]
Resulting acceleration would be in Positive direction, 'cause their direction doesn't change & they both have same direction.

Hope this helps!
3 0
3 years ago
A 0.299 kg mass slides on a frictionless floor with a speed of 1.44 m/s. The mass strikes and compresses a spring with a force c
VMariaS [17]

Answer:

x = 0.12 m

Explanation:

Let k be the spring force constant , x be the compression displacement of the spring and v be the speed of the box.

when the box encounters the spring, all the energy of the box is kinetic energy:

the energy relationship between the box and the spring is given by:

1/2(m)×(v^2) = 1/2(k)×(x^2)

    (m)×(v^2) = (k)×(x^2)

             x^2 = [(m)(v^2)]/k

                 x =  \sqrt{ [(m)(v^2)]/k}

                 x = \sqrt{ [(0.299)((1.44)^2)]/(44.9)}

                 x = 0.12 m

Therefore, the mass will travel 0.12 m and come to rest.

                    = 0.491 m/s

5 0
3 years ago
What is the difference between sounds that have the same pitch and loudness?
Naya [18.7K]

Answer:

B) the natural frequency

Explanation:

The pitch of a sound depends on the frequency while loudness of a sound depends on the amplitude of sound waves.

5 0
3 years ago
Read 2 more answers
15. Use the chemical equation below to determine how many moles of ammonia
Anastaziya [24]

Answer:

I'm not really sure but I think it is

four

6 0
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Out of all the mass and energy in the universe, ordinary matter (the stuff that makes up stars and gas, and all the things we in
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Answer:

About 5 % of the universe is visible.

Estimates are that 68 % of the universe consists of "dark energy" and 27% of the universe consists of "dark matter". Currently 95 % of the universe is not currently visible to the scientists involved (cannot be explained by means that we know).

5 0
2 years ago
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