Answer:
Technician A is correct.
Explanation:
Stroke of the engine means how far is the piston moves during the cycle.It is determined by the crank of the crank shaft. Engine displacement volume is calculated by multiplying length of the stroke to the piston displacement area.
If there are more than one cylinder in the engine, than in that case this number in multiplied by the number of the cylinders inside the engine.
Therefore technician A is correct.
71% of the earth is water
Answer:
Explanation:
At room temperature the thickness of the film is just enough that it will cancel the reflected light
So here we will have
so we have
here we have
now we have
now when temperature is increased to 177 degree C
then in this case we have
now we have
now we know by the formula of thermal expansion