Answer:Radiologic Dispersal Devices (RDD) 
Explanation:
Radiologic Dispersal Device (RDD) is commonly known as dirty bomb. These devices require little more skill than is needed to make a conventional bomb and their components are easier to acquire. RDDs utilize conventional explosives to disperse a radioactive material packaged in the device, as opposed to a nuclear device, which creates radiation with its explosion.
 
        
             
        
        
        
Answer:
420
Explanation:
420 because 120 x 3 = 360 
120/2 = 60 and 360 + 60 = 420
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Answer:
True.
Explanation:
Don't turn wide to the left as you start the turn. A driver behind may think you are turning left and try to pass you on the right. You may crash into the other vehicle as you complete your turn. 
Instead, slowly give yourself and others more time to avoid problems, keep the rear of the vehicle close to the curb. This will stop other drivers from passing you on the right. This is called (button Hook) 
If you are driving a truck or bus that cannot make the right turn without swinging into the other lane, turn wide as you complete the turn. 
 
        
             
        
        
        
2m/s because the hockey puck is traveling at a constant speed ( acceleration is 0 ). Unless something acts on the hockey puck it will travel 2 m/s forever.