Answer:
A mock-up
Explanation:
It is made of cheap and easy to access parts.
b
Answer and Explanation:
The explanation is attached below
lubricating all moving parts in the engine
like the pistons, pushrods, and the crank
both b and c are the right
If the turbulent velocity profile in a pipe of diameter 0.6 m may be approximated by u/U=(y/R)^(1/7), where u is in m/s and y is in m and 0.15 m from the pipe.
hope it helps
