You can use map and notice one thinh. If you flipp over the edges of continents and put them together, you will get a big single continent that is called pangaea. Practically it's impossible but it could be imagined.
        
                    
             
        
        
        
Answer: 5,640 s (94 minutes)
Explanation:
the tangential speed of the HST is given by
 (1)
 (1)
where
 is the length of the orbit
 is the length of the orbit
r is the radius of the orbit
T is the orbital period
In our problem, we know the tangential speed:  . The radius of the orbit is the sum of the Earth's radius and the distance of the HST above Earth's surface:
. The radius of the orbit is the sum of the Earth's radius and the distance of the HST above Earth's surface:

So, we can re-arrange equation (1) to find the orbital period:

Dividing by 60, we get that this time corresponds to 94 minutes.
 
        
                    
             
        
        
        
Answer:
we could use the formula, v=u+at,
65=25+a (10), a=4 , since the motion is declerating we have a=-4 m/s2
 
        
             
        
        
        
<span>When chemical change takes place, the atoms in the reactants rearrange and bond together differently to form one or more new products with different characteristics. </span>
        
                    
             
        
        
        
Answer:
3A
Explanation:
Rtoal=R1+R2+R3=5+10+15=30
I=V/R 90/30
I=3