The vessel must also have red and green side lights.
The red light is placed on the port (left) side of the boat while the green light is placed on the starboard (right) side of the vehicle. The white lights are on both the masthead (front) and stern (rear) of the boat, unless the vessel is less than 39.4 feet, in which case the front and rear white light may be combined as only one white light.
Answer:
They are the only joints that can do 360 degrees and rotate with their own axis. But, because of its free-moving, it is prone to any dislocation compared to other movable joints.
Explanation:
Answer:
The flow rate is 
Explanation:
From the question we are told that
The velocity is 
The diameter of the pipe is 
The radius of the pipe is mathematically represented as

substituting values


The flow rate is mathematically represented as

Where is the cross-sectional area of the pipe which is mathematically evaluated as

substituting values


So

