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matrenka [14]
4 years ago
15

Please help with this

Physics
1 answer:
frosja888 [35]4 years ago
8 0
912.

outer ear:
pinna
ear canal

middle ear:
ossicles and ear drum

inner ear:
semcircular canals
cochlea
auditory nerve

13.
frequency = wavespeed ÷ wavelength

14.
if frequency increases you would experience a higher pitch in sound

15.
humans can hear 20Hz to 20kHz

16.
The Doppler effect is the change in frequency or wavelength of a wave for an observer who is moving relative to the wave source. Can be used for machines measuring speed via doppler effect.

17.
Doppler in hospitals can be used for ultrasound to provide images for diagnosis and monitoring.
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A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat make
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Explanation:

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so, the smallest size of insect that bat can hear is equal to 6.136 mm

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Work is defined as the product of the magnitude of a force and the displacement of the object it is acting upon. In this case, the forces F1 and F2 are acting on the box, causing it to move across the floor. To calculate the work done by each force, we need to calculate the magnitude of the force and the displacement of the box.

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