The major principal of leaver is
load × load distance = effort × effort distance
where,
effort dis= distance between effort and fulcrum
load distance = distance between load and fulcrum......
Explanation:
Since, the two protons are at the initial state of point a and point b. Hence, total mechanical energy at point a and point b is as follows.

or,
where,
= kinetic energy of two protons
So, 

Putting the given values into the above formula we will calculate the value of
as follows.

= 
= 
Now, we will calculate the maximum electric field as follows.
F = 
= 
= 
Therefore, we can conclude that the maximum electric force that these protons will exert on each other is
.
The following
are the answers to the questions presented:
a. The joules of energy required to run a 100W light bulb for one day is 8640000J
b. The amount of coals that has to be burned to light that light bulb for one day is 0.96kg
The solution would
be like this for this specific problem:
<span>P=<span>W/s</span>→W=Pt=100W1day <span><span>24h/</span><span>1day </span></span><span><span>3600s/</span><span>1h</span></span>=8640000J</span>
<span>W=<span>30/100</span>wm→m=<span><span>100W/</span><span>30w</span></span>=<span><span>100×8640000J/</span><span>30×30×<span>10in thepowerof6 </span><span>J/<span>kg</span></span></span></span>=0.96kg</span>
<span>I am hoping that
these answers have satisfied your queries and it will be able to help you in
your endeavors, and if you would like, feel free to ask another question.</span>
Constant = straight line
“Travels at constant negative acc.”
Which is negative slope
Solution: B. Straight line w/ neg. slope