Question

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Answer 1

Answer:

1)b: the baby is male or female is determined by father's chromosome

2)d:the net force of forces acting in opposite direction is equal to the sum of the two forces

3)d: durability of chappals increases

4)c:1,3,4

5)c: flute

6)d:if amplitude of sound---------6 times its initial value.

7)a:1,2,3

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Answer 2

Answer:

The amplitude of a sound wave is the measure of the height of the wave. The amplitude of a sound wave can be defined as the loudness or the amount of maximum displacement of vibrating particles of the medium from their mean position when the sound is produced.Loudness of sound is directly proportional to the square of the amplitude. When amplitude is doubled, loudness becomes 4 times.

Explanation:

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