Answer:
<h2>2.35 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question
force = 0.49 × 4.8 = 2.352
We have the final answer as
<h3>2.35 N</h3>
Hope this helps you
 
        
             
        
        
        
Answer: Rn :)))) no explanation needed
 
        
             
        
        
        
Because the Moon has a very small surface area compared to other spacial geo-bodies, it has cooled down much faster than Earth. Any water on the moon would freeze.
        
             
        
        
        
Answer:
The number of bright fringes per unit width on the screen is,  
      
Explanation:
If d is the separation between slits, D is the distance between the slit and the screen and  is the wavelength of the light. Let x is the  number of bright fringes per unit width on the screen is given by :
 is the wavelength of the light. Let x is the  number of bright fringes per unit width on the screen is given by :

 is the wavelength
 is the wavelength
n is the order
If n = 1,

So, the the number of bright fringes per unit width on the screen is  . Hence, the correct option is (B).
. Hence, the correct option is (B).
 
        
             
        
        
        
<h3><u>Answer;</u></h3>
- A moving electric charge creates a magnetic field at all points in the surrounding region.
- An electric current in a conductor creates a magnetic field at all points in the surrounding region.
- A permanent magnet creates a magnetic field at all points in the surrounding region.
<h3><u>Explanation;</u></h3>
- A magnetic field can be created by running electricity through a wire. All magnetic fields are created by moving charged particles. it is important to also note that charged particles create magnetic fields only when they are moving. 
- The strength of the magnetic field generated or created is proportional to the amount of current flowing through the wire. Thus, increasing the current increases the strength of the magnetic field.