Answer:
n = 756.25 giga electrons
Explanation:
It is given that,
If the charge on the negative plate of the capacitor, ![Q=121\ nC=121\times 10^{-9}\ C](https://tex.z-dn.net/?f=Q%3D121%5C%20nC%3D121%5Ctimes%2010%5E%7B-9%7D%5C%20C)
Let n is the number of excess electrons are on that plate. Using the quantization of charges, the total charge on the negative plate is given by :
![Q=ne](https://tex.z-dn.net/?f=Q%3Dne)
e is the charge on electron
![n=7.5625\times 10^{11}](https://tex.z-dn.net/?f=n%3D7.5625%5Ctimes%2010%5E%7B11%7D)
or
n = 756.25 giga electrons
So, there are 756.25 giga electrons are on the plate. Hence, this is the required solution.
Answer:
a planet
Explanation:
a planet is one which exerts these properties and therefore is the answer
Below is the solution:
Heat soda=heat melon
<span>m1*cp1*(t-t1)=m2*cp2*(t2-t); cp2=cpwater </span>
<span>12*0.35*3800*(t-5)=6.5*4200*(27-t) </span>
<span>15960(t-5)=27300(27-t) </span>
<span>15960t-136500=737100-27300t </span>
<span>43260t=873600 </span>
<span>t=873600/43260 </span>
<span>t=20.19 deg celcius</span>
Answer:
Explanation:
Force on a moving charge is given by the following relation
F = q ( v x B )
for proton
q = e , v = vi , B = Bk
F = e ( vi x Bk )
= Bev - j
= - Bevj
The direction of force is along negative of y axis or -y - axis.
for electron
q = - e , v = vi , B = Bk
F = - e ( vi x Bk )
= - Bev - j
= Bevj
The direction of force is along positive of y axis or + y - axis.