Answer:
The speed of the electron is  .
. 
Explanation:
Given that,
The magnitude of electric field, 
The magnitude of magnetic field, B = 0.516 T
Both the magnetic and electric fields are acting on the moving electron. Then,  the magnitude of electric field and magnetic field is balanced such that :

or

So, the speed of the electron is  . Hence, this is the required solution.
. Hence, this is the required solution.
 
        
             
        
        
        
Answer: 
Corpuscular theory of light
Explanation:
In optics, the corpuscular theory of light, arguably set forward by Descartes in 1637, states that light is made up of small discrete particles called "corpuscles" which travel in a straight line with a finite velocity and possess impetus. This was based on an alternate description of atomism of the time period.
 
        
             
        
        
        
Explanation:
Electromagnetic waves are waves that propagate through space while an electric field and a magnetic field interact with each other.
please mark as brainliest plzz
 
        
                    
             
        
        
        
The right  answer is B. hope this helps you :)
        
                    
             
        
        
        
Answer:
c. 60 feet is the correct answer
Explanation:
what is the contour interval of this map? a.20 b.-20 c. 60 feet 11