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kondaur [170]
4 years ago
15

Bats use ultrasound in echolocation. This sound is characterized by _____.

Physics
2 answers:
Gnoma [55]4 years ago
8 0

Answer:

<u>C. high frequency  </u>

Explanation:

Bats use high frequency sound waves -ultra sound (20 to 200 kHz) to locate their prey via a technique -echolocation. The produce these sound waves and when the waves reflect from a prey nearby, they are able to estimate the size, position and speed of their prey. The human hearing range is up to 20 kHz, so we can hear the sound produced by some of the bats.

Elanso [62]4 years ago
4 0
High frequency, as humans cannot hear the sound of the bats using echolocation because of it's such high frequency.
Hope this helps :)
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Law Incorporation [45]

The figure mentioned on the question is in the attachment.

Answer: a) P_{x} = - 38.35N

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Since the plane is inclined, Normal Force is equal the y-component of the force due to gravity and Force of friction and the x-component of the force due to gravity are opposite forces.

The second attachment ilustrate the forces acting on the block.

Calculating:

A) The magnitude of the x-component of Force due to gravity:

According to the second image:

P_{x} = P.sinθ

P_{x} = 5.9.8.sin(36.8)

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F_{N} = 5.9.8.cos(36.8)

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F_{f} = 27.45 N

D) For the acceleration, use Newton's Law: F_{R} = m . a

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P_{x} - F_{f}  = m.a

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a = - 13.16 m/s²

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7 0
3 years ago
A straightforward method of finding the density of an object is to measure its mass and then measure its volume by submerging it
Thepotemich [5.8K]

Answer:

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