Answer:
<h2>2.55 Hz</h2>
Explanation:
The frequency of the wave given it's velocity and wavelength can be found by using the formula

where
c is the velocity of the wave in m/s
is the wavelength in m
From the question
c = 7.9 m/s
= 3.1 m
We have

We have the final answer as
<h3>2.55 Hz</h3>
Hope this helps you
This natural resistance is known as inertia. =)
Answer:
Reflective
Explanation:
The radiation pressure of the wave that totally absorbed is given by;

and While the radiation pressure of the wave totally reflected is given by;

Now compare the two-equation you can clearly see that the pressure due to reflection is larger than absorption therefore the sail should be reflective.
Answer:
The beat frequency is 5.5 Hz.
Explanation:
f = 110 Hz, T = 600 N , T' = 540 N
let the frequency is f'.

So, the beat frequency is f - f' = 110 - 104.5 = 5.5 Hz
Answer:
The SI system is also called coherent system of units because of the following reasons: ... 1 Newton (SI unit of Force) = 1 Kg (SI unit of mass) x 1 m (SI unit of distance) / s2 (SI unit of time) , therefore 1 Newton is a coherent unit of Force.
HOPE ITS HELP
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<em>#</em><em>B</em><em>R</em><em>A</em><em>I</em><em>N</em><em>L</em><em>E</em><em>S</em><em>T</em></h2>