Abat at rest sends out ultrasonic sound waves at 50.0 khz and receives them returned from an object moving directly away from it at 27.5 m/s. what is the received sound frequency?

f = 42.5 kHz

Explanation:

Frequency of the sound due to reflection of an object moving away from the bat is given as

here we know that

v = 340 m/s

also we know that

now we will have

so the sound frequency received from the object is 42.5 kHz

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

true tan speed = ang vel x radius