I think the answer will be B tell me if it’s right after
Answer:
As all electromagnetic radiation, microwaves travel at the speed of light.
AGREE
Answer:
The correct answer is B. You would not have to travel far to see another total eclipse .
Explanation:
it is said that the way to predict or know beforehand if there is a lunar or solar eclipse is just to know the what is called the saros which are periods of exactly 223 synodic months and the eclipses are repeated or occurred in the same location every 3 Saros cycles.
Answer:
480 mL
Explanation:
Ideal gas law states:
PV = nRT
At constant pressure, nR/P is constant. Therefore:
V / T = V / T
420 mL / 220 K = V / 250 K
V ≈ 480 mL
To solve this problem we will apply the concepts related to the wavelength of its third harmonic.
It describes that the wavelength is equivalent to
![\lambda = \frac{2}{3}L](https://tex.z-dn.net/?f=%5Clambda%20%3D%20%5Cfrac%7B2%7D%7B3%7DL)
Here,
![\lambda = Wavelength](https://tex.z-dn.net/?f=%5Clambda%20%3D%20Wavelength)
The wavelength is in turn described as a function that depends on the change of the speed as a function of the frequency, that is to say
![\lambda = \frac{v}{f}](https://tex.z-dn.net/?f=%5Clambda%20%3D%20%5Cfrac%7Bv%7D%7Bf%7D)
In this case the speed is equivalent to the speed of sound and the frequency was previously given, therefore
![\lambda = \frac{343}{262}](https://tex.z-dn.net/?f=%5Clambda%20%3D%20%5Cfrac%7B343%7D%7B262%7D)
![\lambda = 1.3091m](https://tex.z-dn.net/?f=%5Clambda%20%3D%201.3091m)
Finally the length of the pipe would be
![L= \frac{3}{2}(1.3091)](https://tex.z-dn.net/?f=L%3D%20%5Cfrac%7B3%7D%7B2%7D%281.3091%29)
![L = 1.963m](https://tex.z-dn.net/?f=L%20%3D%201.963m)