<span> it is electromagnetic waves that are made up of oscillating magnetic and electric fields </span>
Because acceleration was constant throughout the slide, we can show the slide lasted
![a=\dfrac{\Delta v}{\Delta t}\iff-5.6\,\dfrac{\mathrm m}{\mathrm s^2}=\dfrac{7.4\,\frac{\mathrm m}{\mathrm s}-8\,\frac{\mathrm m}{\mathrm s}}{\Delta t}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7B%5CDelta%20v%7D%7B%5CDelta%20t%7D%5Ciff-5.6%5C%2C%5Cdfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%5E2%7D%3D%5Cdfrac%7B7.4%5C%2C%5Cfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D-8%5C%2C%5Cfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D%7D%7B%5CDelta%20t%7D)
![\implies\Delta t=0.107\,\mathrm s](https://tex.z-dn.net/?f=%5Cimplies%5CDelta%20t%3D0.107%5C%2C%5Cmathrm%20s)
Also because accleration was constant, we know the average velocity of the book was
![\bar v=\dfrac{7.4\,\frac{\mathrm m}{\mathrm s}+8\,\frac{\mathrm m}{\mathrm s}}2=7.7\,\dfrac{\mathrm m}{\mathrm s}](https://tex.z-dn.net/?f=%5Cbar%20v%3D%5Cdfrac%7B7.4%5C%2C%5Cfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D%2B8%5C%2C%5Cfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D%7D2%3D7.7%5C%2C%5Cdfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D)
Average velocity is also given by
![\bar v=\dfrac{\Delta x}{\Delta t}\iff7.7\,\dfrac{\mathrm m}{\mathrm s}=\dfrac{\Delta x}{0.107\,\mathrm s}](https://tex.z-dn.net/?f=%5Cbar%20v%3D%5Cdfrac%7B%5CDelta%20x%7D%7B%5CDelta%20t%7D%5Ciff7.7%5C%2C%5Cdfrac%7B%5Cmathrm%20m%7D%7B%5Cmathrm%20s%7D%3D%5Cdfrac%7B%5CDelta%20x%7D%7B0.107%5C%2C%5Cmathrm%20s%7D)
so the width of the desk must have been
![\Delta x=0.824\,\mathrm m](https://tex.z-dn.net/?f=%5CDelta%20x%3D0.824%5C%2C%5Cmathrm%20m)
which means C is the most likely answer.
Answer:
counter question if you get out the shower clean then how does your towel get dirty?
Answer:
1.) 15hrs per week = $97.50
2.) 20hrs per week = $130
Explanation: