Question

plz answer this all question​

Answer 1

Answer:

1. Frequency is the correct answer.

2.The differences between sounds are caused by intensity, pitch, and tone. Sound is a wave and waves have amplitude, or height. Amplitude is a measure of energy. The more energy a wave has, the higher its amplitude.

3.Some of the main sources of noise in residential areas include loud music, transportation (traffic, rail, airplanes, etc.), lawn care maintenance, construction, electrical generators, wind turbines, explosions, and people.

4.The pitch of a sound is dictated by the frequency of the sound wave, while the loudness is dictated by the amplitude. When a drum is beaten, the air particles around the drum skin vibrate in the form of a compression wave.

Hope it helps you.

Answer 2

Answer:

ok

Explanation:

Consider the given figure.

By using Pythagoras theorem

x

2

=3

2

+4

2

x

2

=9+16

x

2

=25

x=5