Answer:
Explanation:
Given
Radius of A is twice of B i.e.
![R_A=2R_B](https://tex.z-dn.net/?f=R_A%3D2R_B)
Also Potential of both sphere is same
![V_A=V_B](https://tex.z-dn.net/?f=V_A%3DV_B)
![V=\frac{kQ}{R}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7BkQ%7D%7BR%7D)
thus
![k\frac{Q_A}{R_A}=K\frac{Q_B}{R_B}](https://tex.z-dn.net/?f=k%5Cfrac%7BQ_A%7D%7BR_A%7D%3DK%5Cfrac%7BQ_B%7D%7BR_B%7D)
![\frac{Q_A}{Q_B}=\frac{R_A}{R_B}](https://tex.z-dn.net/?f=%5Cfrac%7BQ_A%7D%7BQ_B%7D%3D%5Cfrac%7BR_A%7D%7BR_B%7D)
![\frac{Q_A}{Q_B}=\frac{2}{1}=2](https://tex.z-dn.net/?f=%5Cfrac%7BQ_A%7D%7BQ_B%7D%3D%5Cfrac%7B2%7D%7B1%7D%3D2)
![\frac{Q_B}{Q_A}=\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7BQ_B%7D%7BQ_A%7D%3D%5Cfrac%7B1%7D%7B2%7D)
(b)Ratio of ![\frac{E_B}{E_A}](https://tex.z-dn.net/?f=%5Cfrac%7BE_B%7D%7BE_A%7D)
Electric Field is given by ![E=\frac{kQ}{R^2}](https://tex.z-dn.net/?f=E%3D%5Cfrac%7BkQ%7D%7BR%5E2%7D)
thus
----1
----2
Divide 2 by 1
![\frac{E_B}{E_A}=\frac{Q_B}{R_B^2}\times \frac{R_A^2}{Q_A}](https://tex.z-dn.net/?f=%5Cfrac%7BE_B%7D%7BE_A%7D%3D%5Cfrac%7BQ_B%7D%7BR_B%5E2%7D%5Ctimes%20%5Cfrac%7BR_A%5E2%7D%7BQ_A%7D)
![\frac{E_B}{E_A}=\frac{1}{2}\times 4=2](https://tex.z-dn.net/?f=%5Cfrac%7BE_B%7D%7BE_A%7D%3D%5Cfrac%7B1%7D%7B2%7D%5Ctimes%204%3D2)
Density = Mass/Volume
2.5 g/ml = 5g/Volume
Volume = 5g/(2.5 g/ml)
= 2 ml
Answer:
C) the reactants have more potential energy than the products.
Explanation:
When solar radiation reaches the Earth it quickly dissipates as most of the radiation and UV rays are blocked by ozone layer, but more radiation and UV rays are able to get through because of global warming.
Answer:Frequency, Intensity, Time, Type
Explanation: frequency, intensity, time, and type is one way to remember the general guidelines for what should be included in a fitness plan.