Which sound wave-object interaction is used by animals in echolocation?

Physics

2 answers:

iris [78.8K]3 years ago

8 0

Answer:

Explanation:

Animals who use echolocation send a special kind of sound, when this sound wave collides with the object it reflect back and animal detect the location, shape and size of object.Example of such animal is bats, whales, dolphins and oilbird. Bats uses echolocation to reach their pray and for their movement at night.

tekilochka [14]3 years ago

5 0

The answer is reflection

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1) Potential difference: 1 V

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Explanation:

When a charge moves in an electric field, its electric potential energy is entirely converted into kinetic energy; this change in electric potential energy is given by

$\Delta U=q\Delta V$

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In this problem, we have:

$q=4.80\cdot 10^{-19}C$ is the magnitude of the charge

$\Delta U = 4.80\cdot 10^{-19}J$ is the change in kinetic energy of the particle

Therefore, the potential difference (in magnitude) is

$\Delta V=\frac{\Delta U}{q}=\frac{4.80\cdot 10^{-19}}{4.80\cdot 10^{-19}}=1 V$

Here we have to evaluate the direction of motion of the particle.

We have the following informations:

- The electric potential increases in the +x direction

- The particle is positively charged and moves from point a to b

Since the particle is positively charged, it means that it is moving from higher potential to lower potential (because a positive charge follows the direction of the electric field, so it moves away from the source of the field)

This means that the final position b of the charge is at lower potential than the initial position a; therefore, the potential difference must be negative:

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