Explanation:
Let us assume that piece 1 is  is facing west side. And, piece 2 is
 is facing west side. And, piece 2 is  facing south side.
 facing south side.
Let  = m and
 = m and  = 2m. Hence,
 = 2m. Hence, 
         
           
                      = 10.5 m/s

           
                      = 10.5 m/s
   
               = 
               = 14.84 m/s
or,          = 15 m/s
Hence, the speed of the third piece is 15 m/s.
Now, we will find the angle as follows.
           
                       = 
                       = 
                       = 
Therefore, the direction of the third piece (degrees north of east) is north of east.
 
        
             
        
        
        
Answer:
All the planets orbit the Sun in nearly the same plane.
 
        
             
        
        
        
Answer:
Explanation:
a ) speed of passenger = circumference / time 
= 2π R / Time
= 2 x 3.14 x 50 / 60
= 5.23 m /s
b )
centrifugal force = m v² /R
= (882 /9.8 ) x 5.23² / 50
= 77.47 N 
Apparent weight at the highest point
real weight  - centrifugal force
= 882 - 77.47
= 804.53 N 
Apparent weight at the lowest point
real weight  + centrifugal force
= 882 +77.47
= 959.47 N
c )  if the passenger’s apparent weight at the highest point were zero
centrifugal force = weight 
mv² /R = mg 
v² = gR
= 9.8 X 50
v = 22.13 m /s
d ) 
apparent weight
mg - mv² / R
= 882 - (882 / 9.8 )x 22.13²/50
= 882 +  882
= 1764 N  
= 
 
        
             
        
        
        
Answer:
The correct option is A
Explanation:
From the question we are told that 
 The mass number is 
Generally the mean radius is mathematically evaluated as 
 
Here  is a constant with a value
 is a constant with a value  
So  
      
       
         
 
        
             
        
        
        
Navigation is the art of measuring distances in order to be able to get from one place to another