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. 
        
             
        
        
        
The answer would be 5.6x10^5
        
                    
             
        
        
        
Number of miles that marker shows when passes through town= 160 miles.
Number of miles that marker shows currently to John = 115 miles.
We need to find the distance between town and John's current location.
For the problem, we can clearly see that Town is at 160 miles away but when John passes the marker shows 115 miles.
So, it's just the difference between 160 miles and 115 miles.
In order to find that difference, we need to subtract those two numbers.
160miles - 115miles = 45 miles.
So, we could say the distance between town and John's current location is 45 miles.
 
        
             
        
        
        
Answer:
The magnitude of the average angular acceleration of the disk is  .
.
Explanation:
Given that,
Angular velocity, 
The disk comes to rest, 
Time, t = 0.234 s
We need to find the magnitude of the average angular acceleration of the disk. It is given by change in angular velocity per unit time. So,

So, the magnitude of the average angular acceleration of the disk is  .
.