What is the value of the voltage? There must be one somewhere.
This might be too simple minded, but I'll give it a voltage of 10 Volts.
R = voltage / Current
R = 10 / 0.5
R = 20 volts.
Perhaps you could post a diagram if this is a Kirchhoff Law Question.
Answer:

Explanation:
The rest energy is the energy associated with the base ball at zero velocity which is expressed as

Note: the speed C is the speed of light which is expressed as 3*10^8
while the kinetic energy is the energy associated with the ball during its motion and is expressed as

the ratio can be expressed as

Answer:
Is 16
Explanation:
the atomic number is the name as positive units
I believe the right answer choice is letter B
Answer:
For one dimensional box
E= 
For lowest energy transition will be from n =1 to n=2
Hence,

h= 6.626 *10-34 J.s
m = 9.31 *10-31 Kg
L= 0.14 * 10-9 m
c= 3 *108 m/s


Not in visible range