Helium, Neon, and Xenon are all part of the same column on the Periodic Table. Such a column is referred to as a Group, because they have the same number of valence electrons in their outermost shell. Hope this helps!
The horizontal force applied is 160 N while the velocity is 2.03 m/s.
<h3>What is the speed of the car?</h3>
The work done by the car is obtained as the product of the force and the distance;
W = F x
F = ?
x = 30.0 m
W = 4,800 J
F = 4,800 J/30.0 m
F = 160 N
But F = ma
a = F/m
a = 160 N/2.30 ✕ 10^3-kg
a= 0.069 m/s
Now;
v^2 = u^2 + 2as
u = 0/ms because the car started from rest
v = √2as
v = √2 * 0.069 * 30
v = 2.03 m/s
Learn more about force and work:brainly.com/question/758238
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The time taken by traveler to cover the distance is,
![t=\frac{d}{v}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7Bd%7D%7Bv%7D)
Substitute the known values,
![\begin{gathered} t=\frac{(11000\text{ ft)}}{(84\text{ mph)(}\frac{1.46667\text{ ft/s}}{1\text{ mph}})_{}} \\ \approx89.3\text{ s} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20t%3D%5Cfrac%7B%2811000%5Ctext%7B%20ft%29%7D%7D%7B%2884%5Ctext%7B%20mph%29%28%7D%5Cfrac%7B1.46667%5Ctext%7B%20ft%2Fs%7D%7D%7B1%5Ctext%7B%20mph%7D%7D%29_%7B%7D%7D%20%5C%5C%20%5Capprox89.3%5Ctext%7B%20s%7D%20%5Cend%7Bgathered%7D)
Therefore, the time taken by traveler to cover the distance is 89.3 s.