Answer:
The distence bettween the two cities is 630miles 
Step-by-step explanation:
So you take 42 and multiply it by 15 and you get 630.
 
        
             
        
        
        
Answer:
The velocities after 739 s of firing of each engine would be 6642.81 m/s in the x direction and 5306.02 in the y direction
Step-by-step explanation:
- For a constant acceleration:  , where , where is the final velocity in a direction after the acceleration is applied, is the final velocity in a direction after the acceleration is applied, is the initial velocity in that direction  before the acceleration is applied, a is the acceleration applied in such direction, and t is the amount of time during where that acceleration was applied. is the initial velocity in that direction  before the acceleration is applied, a is the acceleration applied in such direction, and t is the amount of time during where that acceleration was applied.
- <em>Then for the x direction</em> it is known that the initial velocity is  5320 m/s, the acceleration (the applied by the engine) in x direction is 5320 m/s, the acceleration (the applied by the engine) in x direction is 1.79 m/s2 and, the time during the acceleration was applied (the time during the engines were fired) of the  is 739 s. Then: 1.79 m/s2 and, the time during the acceleration was applied (the time during the engines were fired) of the  is 739 s. Then: 
- In the same fashion, <em>for the y direction</em>, the initial velocity is   0 m/s, the acceleration in y direction is 0 m/s, the acceleration in y direction is 7.18 m/s2, and the time is the same that in the x direction, 739 s, then for the final velocity in the y direction: 7.18 m/s2, and the time is the same that in the x direction, 739 s, then for the final velocity in the y direction: 
 
        
             
        
        
        
I would say the answer is 2
        
                    
             
        
        
        
Answer: look at the picture 
Step-by-step explanation: Hope this help :D
 
        
             
        
        
        
Answer:
a). 6:51
b). 6:30 am
c). 34 minutes
Step-by-step explanation:
a). Train leaves Westchester at 6:30.
    From the arrival - departure table in column (2),
    Arrival time of the train at middlewich = 6:51
b). Kate has to reach Southam before 9:00 am
    Therefore, time of the latest train that she can catch to get to work on time is 6:30 am
     By this train she can reach at 07:19 at Southam.
c). Duration of journey from Westchester to Eastwick = 06:34 - 06:00
                                                                                         = 00:34
                                                                                         ≈ 34 minutes