Explanation:
Earth rotates in prograde mation.As viewed from the north pole star Polaris.Earth turns counterclockwise,, the north pole is point in the northern,, Hemisphere where Earth's Axis of rotation meets it's surface
 
        
                    
             
        
        
        
The statement that best describes how the windmill technology benefits the environment is this: WINDMILLS DO NOT POLLUTE THE ENVIRONMENT.
Constructing a windmill involves harnessing the power of the wind to generate electricity. This type of electricity generation has no side  effects whatsoever. It is environmental friendly and does not pollute the environment. 
        
             
        
        
        
Answer:
velocity = 62.89 m/s  in 58 degree measured from the x-axis
Explanation:
Relevant information:
Before the collision, asteroid A of mass 1,000 kg moved at 100 m/s, and asteroid B of mass 2,000 kg moved at 80 m/s. 
Two asteroids moving with velocities collide at right angles and stick together. Asteroid A initially moving to right direction and asteroid B initially move in the upward direction.
Before collision Momentum of A = 1000 x 100 =  kg - m/s in the right direction.
 kg - m/s in the right direction.
Before collision Momentum of B = 2000 x 80 = 1.6 x  kg - m/s in upward direction.
  kg - m/s in upward direction.
Mass of System of after collision = 1000 + 2000 = 3000 kg
Now applying the Momentum Conservation, we get
Initial momentum in right direction = final momentum in right direction =  
 
And, Initial momentum in upward direction = Final momentum in upward direction = 1.6 x  
 
So,  =
  =  m/s
  m/s
and  m/s
  m/s
Therefore, velocity is = 
                                    = 
                                    = 62.89 m/s
And direction is 
tan θ =  = 1.6
     = 1.6
therefore, 
                    =  from x-axis
  from x-axis
 
        
             
        
        
        
Answer:
Maximum Tension=224N
Minimum tension= 64N
Explanation:
Given
mass =8 kg
constant speed = 6m/s .
g=10m/s^2
Maximum Tension= [(mv^2/ r) + (mg)]
Minimum tension= [(mv^2/ r) - (mg)]
Then substitute the values, 
Maximum Tension= [8 × 6^2)/2 +(8×9.8)] = 224N
Minimum tension= [8 × 6^2)/2 -(8×9.8)]
=64N
Hence, Minimum tension and maximum Tension are =64N and 2224N respectively
 
        
             
        
        
        
True
It is True I took the test