I need points sorry so idek the answer so u will have to ask someone else
A "open circuit" is one that doesn't permit current to flow because of a break in the path.
Hello!!
For calculate the velocity let's applicate the formula:


d = Distance = 4000 m
v = Velocity = ?
t = Time = 400 s
⇒ 

⇒ 



Einstein's energy mass equivalence relation say that if the whole given mass is converted to energy then it would be

where
m = mass in kg
c = speed of light in m/s
this is the origination of quantum physics and by this formula we can relate the dual nature of light and particle
So correct relation above will be
