If you want to tell a friend about a fish you caught or a tree you cut down, 
you're going to tell him WHERE you were ... its position in space, 3 numbers, 
'x', 'y', and 'z' ... and also WHEN you were ... its position in time, one more 
number.  
Dimensions are numbers used to describe the location of a point, and the
difference in location between two points.  With four numbers, you can exactly 
describe the location of anything, and its distance from any other thing, in 
space and time. 
        
             
        
        
        
Your answer is "<span>surface of a sphere"
Hope this helps.</span>
        
             
        
        
        
In most cases the temperature must increase for thermal expansion to occur. Most substances expand as temperature increases because the atoms or molecules vibrate faster as temperature increases and experience greater separation.
        
             
        
        
        
Answer:
The equation v – = v 0 + v 2 v – = v 0 + v 2 is reflects the fact that when acceleration is constant, v – is just the simple average of the initial and final velocities.
Explanation:
hope this is it