Answer:
Qa/Qb = k/2×2k = 1/4
Explanation:
a situation is series and b situation is parallel.
let conductance of each plate = k
so net conductance in series = k/2
net conductance in parallel = 2k
so Qa/Qb = k/2×2k = 1/4
<span>To take a percentage of a number out, simply do the follow:
Number x Percentage = Answer.
Therefore:
14,500x(90/100)=13,050
To find what percentage a figure represents of a total, do the following simple equation:
Figure/Total x100 = Percentage.
So for your Earthquakes, you have a total of:
Total = 90 + 20 + 5 + 1 = 116 Earthquakes.
4 to 5 -> 90/116 x100 = 78% to 2 sig. fig.
5 to 6 -> 20/116 x100 = 17%
6 to 7 -> 5/116 x100 = 4%
7+ -> 1/116 x100 = 1%
</span>The same technique is used everywhere else, sample size divided by total multiplied by 100 gives percentage. Not multiplying by 100 gives you a ratio of 1 that it represents, 1 being 100% (a complete unit).
<span>Therefore for part 1. of your question I would just do 14,500x0.9=13,050. </span>
<span>You'll probably see that 90/100 = 0.9 since 90% is identical to writing 90/100 or 0.9.</span>
Xf=?
Xi=0m
Vi=0m/s
Vf=40m/s
a=?
t=12s
Xf=Xi+1/2(Vi+Vf)t
Xf= 0 +1/2 (0+40)12
Xf=1/2 (40)12
Xf=240m
Vf=Vi+at
40=0+a (12)
40=12a
a=3.33m/s^2
- deci: one-tenth.
- centi: one-hundredth.
- nano: one-billionth.
hope this helps :)
I think its either C or D. I tried, couldn't figure the last part out. Hope this helped though!! Have a great day! :D
