I’m just answering this for points sorry mate
Answer:
False
Explanation :
lever is a rigid bar which turn around a pivot point, called a fulcrum. It is a simple machine and can be use to move a load (or do work). Effort is applied to one part of the lever and it pushes the load at another end. Therefore, the load is not the lever part of the fulcrum or pivot.
Answer:
0.39J/s
Explanation:
Length of 1 tube = 3.7m
Length of 400 tubes in the heat exchanger = 3.7×400 = 1480m, Temperature difference = 23°C = 296K
Outer surface
Rate of heat transfer = (heat transfer coefficient×area×log mean temperature difference)/length
diameter (d) = 25mm = 0.025m, area = πd^2/4 = (3.142×0.025^2)/4 = 0.000491m^2
Rate of heat transfer = (6820×0.000491×296)/1480 = 0.67J/s
Inner surface
diameter = 23mm = 0.023m, area = (3.142×0.023^2)/4 = 0.000416m^2
Rate of heat transfer = (3410×0.000416×296)/1480 = 0.28J/s
Heat transfer rate between the two surfaces = 0.67 - 0.28 = 0.39J/s
Answer: Neutrals
Explanation: System grounding on a power system is a term used to describe the entire processes involved when a neutral is used as the conductor to connect to the solid earth. This ensures that power is generated. This is usually done using either an inductor, an impendance or a resistor. It is very important and necessary to carry out a proper grounding of a power system in order to ensure the safety of the equipment and the personnel etc
Answer:
the curve will flatten due to the supply and demand theory.