3 years ago

According to the Doppler effect, the __________ of sound waves will determine the pitch of the sound.

Physics

1 answer:

Vikentia [17]3 years ago

3 0

The frequency of the sound waves determine their pitch.

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3 years ago

A spring with k = 500 N/m stores 704 J. How far is it extended from the equilibrium position

kaheart [24]

Given that:

k = 500 n/m,

work (W) = 704 J

spring extension (x) = ?

we know that,

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3 years ago

The maximum tension that a 0.80 m string can tolerate is 15 N. A 0.35-kg ball attached to this string is being whirled in a vert

zimovet [89]

Answer:

v=5.86 m/s

Explanation:

Given that,

Length of the string, l = 0.8 m

Maximum tension tolerated by the string, F = 15 N

Mass of the ball, m = 0.35 kg

We need to find the maximum speed the ball can have at the top of the circle. The ball is moving under the action of the centripetal force. The length of the string will be the radius of the circular path. The centripetal force is given by the relation as follows :

$F=\dfrac{mv^2}{r}$