Answer: 
Explanation:
If the energy levels of n1 and n2 are high, the difference of their energy level will tend to zero thereby making the energy of the emitted photons very low.
 
        
             
        
        
        
Answer:
<h2>
The magnitude of the magnetic is 0.145 T</h2>
Explanation:
Given : 
Speed of proton 
Mass of proton  Kg
 Kg
The force on the proton in magnetic field is given by,
    
 
   
But  (∵ Force is perpendicular to the velocity so
    (∵ Force is perpendicular to the velocity so  )
)
   
When particle enter in magnetic field at the angle of 90° so particle moves in circle 
So force is given by,
   
Where  radius but in our case 0.23 m,
 radius but in our case 0.23 m,  C
 C
By comparing above two equation,
   
   
    T
 T
 
        
             
        
        
        
Complete Question:
Football player A has a mass of 110 kg, and he is running down the field with a velocity of 2 m/s. Football player B has a mass of 120 kg and is stationary. What is the total momentum after the collision?
Answer:
Total momentum = 220 Kgm/s. 
Explanation:
<u>Given the following data;</u>
For footballer A
Mass, M1 = 110kg
Velocity, V1 = 2m/s
For footballer B
Mass, M1 = 120kg
Velocity, V1 = 0m/s since he's stationary.
To find the total momentum;
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
 
 
a. To find the momentum of A;

Momentum A = 220 Kgm/s. 
b. To find the momentum of B;

Momentum B = 0 Kgm/s.
c. To find the total momentum of the two persons;
 
 
Substituting into the equation, we have;

<em>Total momentum = 220 Kgm/s. </em>
 
        
             
        
        
        
<span>When an individual looks through a filtered telescope in which he or she observes the sun, the portion where it appears blotchy is likely to be called the sunspots while the layer of the sun where it shows where it occurs is called the photosphere.</span>