Author Question: Co-generation has the advantage that ________. a. more energy is generated than is put into the ... (Read 40 times)

joe · **on:** Jul 28, 2018

Co-generation has the advantage that ________.
a. more energy is generated than is put into the system
b. the overall efficiency of the energy conversion process increases
c. more waste heat is generated
d. solar energy can be utilized to a greater extent

Question 2

For a plane to be able to fly clockwise in a horizontal circle as seen from above, in addition to exerting a force downwards on the air
a. it must be increasing its speed. b. it must exert a force on the air that is directed to the plane's left side. c. it must exert a force on the air that is directed to the plane's right side. d. it does not need to exert a force: it must only move the wing flaps out.
e. it only needs to deflect the air without exerting any additional force on the air.