Answer:
                       
 355 m/s   
Explanation:
Distance = 605 km
Initial speed = 
 = 284 m/s
Final velocity = 
 = 426 m/s
Average speed = ?
There is two method two find average speed. In first method, using 3rd equation of motion, we find acceleration.
                         
 Then using first equation of motion, we find time
                         
Then using the formula of average velocity, we find average velocity
                          
Second method is very simple 
                                   
                                    
                                    
 355 m/s      
 
        
             
        
        
        
S = ut + 0.5at^2 
<span>10 = 0 + 0.5(9.81)t^2 {and if g = 10 then t^2 = 2 so t ~1.414}  </span>
<span>t^2 ~ 2.04 </span>
<span>t ~ 1.43 seconds</span>
        
             
        
        
        
<h3>
Answer:</h3>
<h3>
Explanation:</h3>
_______________
λ=500 nm = 500·10⁻⁹ m
c=3·10⁸ m/s
h=6,63·10⁻³⁴ J·s = 4,14·10⁻¹⁵ eV·s
_______________
E - ?
_______________

 
        
             
        
        
        
The circumference of the Earth at the equator is listed as 24,901 miles.
So his speed is
                     24,901 miles per day.
Convert it to units that we have a better feel for:
                   (24,901 mi/da) x (1 da / 24 hrs)
             =    (24,901 / 24)  (miles/hour)
             =  about  1,038 miles per hour.
You'll find a huge number of people on the internet these days, 
telling you that you could not be moving at that speed and not 
feel it, so therefore the Earth is not spinning, and it's not a globe.
I have a lot of feelings and comments about those people, their
lines of reasoning, and their levels of education and intelligence,
so don't get me started. 
I just want to guarantee you that everything you're learning about
the Earth and the solar system in school is well founded, and it's 
all based on the life's work of some of the smartest people of the 
past 300 years of human history.  Everything you're taught about 
the Earth has good reasons behind it, whereas those other people
have nothing.
A person on Earth's equator is moving from west to east at roughly
1,038 miles per hour, relative to any point on the Earth's rotation axis.