You move the decimal until it is in front of a number (not zero) 4.3 times 10^2
Answer:
(a) V1 = 8990.00 V
V2 = 8960.13 V
Explanation:
Parameters given:
q =3 mC
k = 8.99 * 10⁹ Nm²/C²
x1 = 3 m
x2 = 3.01 m
Electric potential is given as:
V = kq/r
Where
k = Coulombs constant
q = charge
r = distance
Potential at x1 is:
V1 = (8.99 * 10⁹ * 0.000003)/(3)
V1 = 8990.00V
Potential at x2 is:
V2 = (8.99 * 10⁹ * 0.003)/(3.01)
V2 = 8960.13 V
Answer:
Yes
Explanation:
(a)
Yes, the radiating electric field lines around a stationary charged particle are straight lines when the particle is stationary.
Answer:18.5 kg
Explanation:
Given
diameter 
mass of stone 
velocity of stone 
height fallen 
using



Tension of string will Provide Torque to cylinder

where 



and 

Put value of T





