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3 years ago

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

2 answers:

7 0

<span>Good Morning!

Ultrasound is a frequency where higher than that which is audible. So the answer is "high frequency".

Hugs!</span>

satela [25.4K]3 years ago

4 0

Answer: The correct answer is "high frequency".

Explanation:

The normal range of frequency of human being is from 20 Hz to 20,000 Hz.

Bats uses ultrasonic wave. The range of this wave is more than the audible frequency of the human. It is more than 20,000 Hz. It cannot be heard by human.

Bats use ultrasound in echolocation. It emits ultrasonic wave then this wave reflects back from the obstacle or prey which help it to locate it prey. Ultrasonic wave is a high frequency wave.

Therefore, Bats use ultrasound in echolocation. This sound is characterized by high frequency.

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3 years ago

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The force F⃗ pulling the string is constant; therefore the magnitude of the angular acceleration α of the wheel is constant for

abruzzese [7]

Answer:

The answer is " $\boxed{\boxed{\omega = \sqrt{\frac{2fd}{kmr^2}}}}$ "

Explanation:

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4 years ago

An object is 50 cm from a converging lens with a focal length of 40 cm . A real image is formed on the other side of the lens, 2

Leno4ka [110]

Answer:

d) -4.0

Explanation:

The magnification of a lens is given by

$M=-\frac{q}{p}$

where

M is the magnification

q is the distance of the image from the lens

p is the distance of the object from the lens

In this problem, we have

p = 50 cm is the distance of the object from the lens

q = 250 cm - 50 cm is the distance of the image from the lens (because the image is 250 cm from the obejct

Also, q is positive since the image is real

So, the magnification is

$M=-\frac{200 cm}{50 cm}=-4.0$

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3 years ago

Mr. Mann explained that when light passes from air into the water, the light waves bend, or ___________, and the pencil appears

posledela

Answer:

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Explanation:

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3 years ago

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malfutka [58]

From the information given,

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Recall,

magnification = image d

8 0

2 years ago