Answer:
The area of the gold foil is ![14.3 cm^{2}](https://tex.z-dn.net/?f=14.3%20cm%5E%7B2%7D)
Explanation:
Mass of gold foil , m= 27.63 g
Thickness of gold foil , ![t=1000\mu m=0.1 cm](https://tex.z-dn.net/?f=t%3D1000%5Cmu%20m%3D0.1%20cm)
Density of gold , ![\rho =19.32\frac{g}{cm^{3}}](https://tex.z-dn.net/?f=%5Crho%20%3D19.32%5Cfrac%7Bg%7D%7Bcm%5E%7B3%7D%7D)
Let the area of gold foil be A then the total volume of gold foil is given by
![V=At=\frac{m}{\rho }](https://tex.z-dn.net/?f=V%3DAt%3D%5Cfrac%7Bm%7D%7B%5Crho%20%7D)
=>![A=\frac{m}{t\rho }=\frac{27.63}{0.1\times 19.32} cm^{2}](https://tex.z-dn.net/?f=A%3D%5Cfrac%7Bm%7D%7Bt%5Crho%20%7D%3D%5Cfrac%7B27.63%7D%7B0.1%5Ctimes%2019.32%7D%20cm%5E%7B2%7D)
=>![A=14.3 cm^{2}](https://tex.z-dn.net/?f=A%3D14.3%20cm%5E%7B2%7D)
Thus the area of the gold foil is ![14.3 cm^{2}](https://tex.z-dn.net/?f=14.3%20cm%5E%7B2%7D)
As waves pass through matter, whether it's a gas, solid, liquid, etc., this matter on a molecular level is displaced (the molecules are displaced) and this translates to kinetic energy.
I think the correct answer from the choices listed above is the second option. An impact of a thermoelectric power plant on the environment would be it <span>uses a lot of water which will significantly decrease the supply and amount of water available for use. Hope this answers the question. Have a nice day. </span>
1. Based on Scenario A, multiple frames will minimize re-transmission overhead and should be preferred in the encapsulation of packets.
2. Based on Scenario B, the encapsulation of packets should be in a single frame because of the high level of network reliability and accuracy.
<u>Justification:</u>
There will not be further need to re-transmit the packets in a highly reliable and accurate network environment, unlike in an environment that is very prone to errors. The reliable and accurate network environment makes a single frame economically better.
Encapsulation involves the process of wrapping code and data together within a class so that data is protected and access to code is restricted.
With encapsulation, each layer:
- provides a service to the layer above it
- communicates with a corresponding receiving node
Thus, in a reliable and accurate network environment, single frames should be used to enhance transmission and minimize re-transmission overhead. This is unlike in an environment that is very prone to errors, where multiple frames should rather be used to minimize re-transmission overhead.
Learn more about encapsulation of packets here: brainly.com/question/22471914
(a) The wavelength of the wave for the fundamental mode is 2.4 m.
(b) The fundamental frequency of the wave is 2,708.33 Hz.
<h3>Wavelength of the wave for fundamental mode</h3>
The wavelength of the wave for the fundamental mode is calculated as follows;
Node to Node, N → N = λ/2
L = λ/2
λ = 2L
λ = 2 x 1.2
λ = 2.4 m
<h3>Fundamental frequency of the wave</h3>
The fundamental frequency of the wave is calculated as follows;
f = v/λ
f₀ = v/2L
f₀ = (6500)/(2 x 1.2)
f₀ = 2,708.33 Hz
The diagram of the wave for the fundamental mode is in the image uploaded.
Learn more about wavelength here: brainly.com/question/10728818