The echo is weaker than the original sound since the echo has a smaller amplitude than the original sound because sound spreads and its intensity decreases with distance. For example, when the sound from a speaker is heard and is compared to its echo, the echo heard has a lower amplitude than the actual sound.

5 0

4 years ago

Exercise b) 1) Fill in the blanks with the appropriate word: a) The pressure exerted by the air in atmosphere is called b) Press

Tanzania [10]

Answer:

atmospheric pressure

c)increases

d) ....

7 0

3 years ago

2.15 Un móvil en trayectoria rectilinea ocupa las posiciones indicadas en la tabla para cada minuto:

inna [77]

To make sure I don’t has 35 012345 bishops

5 0

3 years ago

For a movie stunt, an empty truck with a mass of 2000 kg goes 10 m/s and runs into a stopped car of mass 1000 kg. The truck then

gizmo_the_mogwai [7]

Answer:

D. The speed of the combined vehicles is less than the initial speed of the truck.

Explanation:

Ik this is late

7 0

3 years ago