Answer:
a). TRUE
Explanation:
Thermal efficiency of a system is the defined as the ratio of the net work done to the total heat input to the system. It is a dimensionless quantity.
Mathematically, thermal efficiency is
η = net work done / heat input
While heat rate is the reciprocal of efficiency. It is defined as the ratio of heat supplied to the system to the useful work done.
Mathematically, heat rate is
Heat rate = heat input / net work done
Thus from above we can see that heat rate is the reciprocal of thermal efficiency.
Thus, Heat rate is reciprocal of thermal efficiency.
Answer:
causes: unemployment, poverty,Lack of education,urbanization e.t.c
solutions:making people educated, giving people jobs
The road is in poor condition, slow down.
Answer:
Correct way to measure the overall length of a boat is:
Measure from the tip of the bow in a straight line to the stern of the boat.
.