Explanation:
Hello !
<h2>Archimedes' principle</h2>
''states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces.''
Archimedes principle equation is given as
buoyant force = density of fluid x volume of displaced fluid x acceleration due to gravity. or
<em>Fb=-density*gravity*volume </em>
<em>For example,</em> a ship that is launched sinks into the ocean until the weight of the water it displaces is just equal to its own weight.
Answer:
The frequency is ![f = 165 Hz](https://tex.z-dn.net/?f=f%20%20%3D%20165%20Hz)
Explanation:
From the question we are told that
The position of zero intensity is
from the center
Now the wavelength of the sound is mathematical represented as
![\lambda = 4 L](https://tex.z-dn.net/?f=%5Clambda%20%20%3D%20%204%20L)
![\lambda = 4 * 0.5](https://tex.z-dn.net/?f=%5Clambda%20%20%3D%20%204%20%2A%200.5)
![\lambda = 2 \ m](https://tex.z-dn.net/?f=%5Clambda%20%20%3D%202%20%5C%20m)
Now the frequency of the sound is mathematically represented as
![f = \frac{v}{\lambda}](https://tex.z-dn.net/?f=f%20%20%3D%20%20%5Cfrac%7Bv%7D%7B%5Clambda%7D)
substituting values
![f = \frac{330}{ 2}](https://tex.z-dn.net/?f=f%20%20%3D%20%20%5Cfrac%7B330%7D%7B%202%7D)
![f = 165 Hz](https://tex.z-dn.net/?f=f%20%20%3D%20165%20Hz)
Answer:
Newton/meter
Explanation:
Acceleration is defined as the rate of change of velocity.
Therefore, the SI units of acceleration is m/sec²
However, acceleration is also involved in Newton's second law:
Force = mass * acceleration
Newton = kg * unit of acceleration
Therefre:
unit of acceleration = Newton / kg
Hope this helps :)
There is an identity of sin(2pi-x) = -sin(x) and cos(2pi-x) = cos(x). This is what we are going to use.
<span>(7pi/6) = (2pi)-(pi/6)
</span>
Therefore:
<span>
1) sec(7pi/6) = 1/cos(2pi-(pi/6)) = 1/cos(pi/6) = 2sqrt(3)/3
</span>
<span>2) cos(7pi/6) = cos(pi/6) = sqrt(3)/2
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>