A person produces two sound waves with a flute one immediately after the other. Both sound waves have the same pitch, but the second one is louder. Which of the following properties is greater for the second sound wave?
A) Frequency
B) Amplitude
C) Wavelength
D) Speed in air

Option B is the right choice.

Explanation:

Given:

Two sounds waves lets say and having same pitch but

We have to find the property which from the options and identify which one is greater for .

Lets take one and one analysis of the terms.

a.

Frequency :

According to the question the pitch is same so the frequency will be same for both the waves.

b.

Amplitude :

c.

Wavelength :

Here the frequency is same so the wavelength for will be same.

d.

Speed in air:

So,

Amplitude of .

Here the amplitude of the louder sound wave will be greater .

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.

car a and b are moving in opposite directions

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