Technician A states that about 33% of the heat energy created is wasted by being dumped straight out of the exhaust to the atmosphere. Technician B states that 33% is wasted by internal friction and from
radiating off hot engine components straight to the atmosphere. Who is correct?
Select one:
A. Technician A
B. Technician B
C. Both A and B
D. Neither Anor B

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false