Answer:
Explanation:
Surface charge density, σ = 9 μC/m² = 9 x 10^-6 C/m²
According to the Gauss theorem, 
Electric field due to the sheet is given by 


E = 5.08 x 10^5 N/C
 
        
             
        
        
        
Answer:
410 m
Explanation:
Given:
v₀ = 20.5 m/s
a = 0 m/s²
t = 20 s
Find: Δx
Δx = v₀ t + ½ at²
Δx = (20.5 m/s) (20 s) + ½ (0 m/s²) (20 s)²
Δx = 410 m
 
        
             
        
        
        
Answer: 1,600 seconds
Explanation:
31,360/9.8 = 3,200. 
Then divide 3,200/2 = 1,600
 
        
             
        
        
        
The average speed is 116.66m/s.
Given - The path traced is 14km , time for jogging is 2 hrs=120min
To find the average speed-
- Speed refers to the ease of the movement and degree of mobility as a result of force application. 
- Due to this there is involvement of velocity.
- Journey of average speed is the cumulative of distances and time.
- Kinetic theory refers to the Boltzmann constant connecting to the standards of distance traversed.
calculations-

Speed= 14 000 / 120 
= 116.66m/s
To learn more about average speed -
<u>brainly.com/question/27753148</u>
#SPJ4
 
        
             
        
        
        
Answer
A thin atmosphere does not supply much oxygen, and the heat from the sun would evaporate it, because mercury is close to the sun.