Answer:
Convection is heat transfer through the movement of liquids and gases.
Answer:
<em>C</em>
Explanation:
<em>Tennis would belong to net wall games .</em>
Nope Copper is a better conductor
Answer:
![f=1.297Hz](https://tex.z-dn.net/?f=f%3D1.297Hz)
Explanation:
From the question we are told that:
Initial pipe length ![L_1=1.03m](https://tex.z-dn.net/?f=L_1%3D1.03m)
Final pipe length ![L_2=1.03+(1.50*10^-2)](https://tex.z-dn.net/?f=L_2%3D1.03%2B%281.50%2A10%5E-2%29)
![L_2=1.045m](https://tex.z-dn.net/?f=L_2%3D1.045m)
Generally the equation for Frequency f is mathematically given by
![F=\frac{v}{\lambda}](https://tex.z-dn.net/?f=F%3D%5Cfrac%7Bv%7D%7B%5Clambda%7D)
Where
![\lambda=4L](https://tex.z-dn.net/?f=%5Clambda%3D4L)
And
V=speed of sound in air
![v=343m/s](https://tex.z-dn.net/?f=v%3D343m%2Fs)
Therefore
![f=\frac{v}{4}{\frac{1}{L_1}-\frac{1}{L_2}}](https://tex.z-dn.net/?f=f%3D%5Cfrac%7Bv%7D%7B4%7D%7B%5Cfrac%7B1%7D%7BL_1%7D-%5Cfrac%7B1%7D%7BL_2%7D%7D)
![f=\frac{343}{4}{\frac{1}{1.03}-\frac{1}{1.045}}](https://tex.z-dn.net/?f=f%3D%5Cfrac%7B343%7D%7B4%7D%7B%5Cfrac%7B1%7D%7B1.03%7D-%5Cfrac%7B1%7D%7B1.045%7D%7D)
![f=1.297Hz](https://tex.z-dn.net/?f=f%3D1.297Hz)