The total charge accumulated by a certain device is given as a function of time by
q(t) = 16.8 t^2 - 1.7 t^4 C.
Find:
(a) What total charge is accumulated at t=2s
(b) What is the maximum charge accumulated in the interval 0 (c) At what rate is the charge being accumulated at t=0.8s?
Use explicit methods (calculus) to determine your answers.21 s.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

A)-explain briefly the importance of standards in engineering design. b)- what is patent? c)-explain the relationship between these standards: b.s. and b.s.en d)- in engineering design concepts, types of loads and how they act are important factors. explain.