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3 years ago

Most often frequency is measured by the number of waves that pass a point in one blank

Physics

1 answer:

AlladinOne [14]3 years ago

8 0

I’m pretty sure it’s hertz
but if it’s wrong i apologize

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A small barge is being used to transport trucks across a river. If the barge is 10.00 m long by 8.00 m wide and sinks an additio

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Answer: Weight truck+load = 29.4× $10^{3}$ N

Explanation: When an object floats in a fluid, there is an upward force, caused by the liquid, acting on the object that opposes the weight of the immersed object. This force is called Buyoyant Force and is determined by:

B = d*V*g

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g is acceleration due to gravity;

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V = 10*8*0.0375

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3 years ago

A 2000 Hz siren and a civil defense official are both at rest with respect to the ground. What frequency does the official hear

astra-53 [7]

Answer:

a) $f_1 = 2070.6 Hz$

b) $f_2 = 1929.4 Hz$

Explanation:

Apparent frequency of the siren is given as

$f = \frac{v_{rel}}{\lambda}$

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sowe know

$\lambda = \frac{340}{2000}$

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$f_1 = 2070.6 Hz$

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so we have

$f_2 = \frac{328}{0.17}$

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