Answer:
Explanation:
Force on electron in an electric field E = eE where E is electric field . 
acceleration = eE / m where m is mass of electron .
Putting the values 
 4 x 10⁶ = 1.6 x 10⁻¹⁹ x E / 9.1 x 10⁻³¹
E = 22.75 x 10⁻⁶ N/C 
The direction of electric field will be towards west ( opposite to east ) 
because of negative charge on electron . 
 
        
             
        
        
        
Answer:
The gravitational force is 130.
Explanation:
During this problem you have to multiply the 65 and the 0.6.
 
        
             
        
        
        
The average velocity of the car for the whole journey is 69.57 km/h.
The given parameters:
- <em>Length of the road, L = 320 km</em>
- <em>Distance covered = 240 km at 75 km/h</em>
- <em>time spent refueling, t₂ = 0.6 hr</em>
- <em>Final velocity, = 100 km/hr</em>
The time spent by the before refueling is calculated as follows;

The time spent by the car for the remaining journey;

The total time of the journey is calculated as follows;

The average velocity of the car for the whole journey is calculated as follows;

Learn more about average velocity here: brainly.com/question/6504879
 
        
             
        
        
        
K = C + 273, so 27°C = 27+273 = 300 K
1 dg = 100 mg, so 20 dg = 20×100 = 2,000 mg
        
             
        
        
        
Answer:
20&£+)##&843&()-_££-()&_2+0&&-£_!)