Design a VHDL module Inputs: din, clock, reset
Output dout

The first D-Flip-Flop (DFF) should have its D input connected to a module input and the last DFF should have its Q output connected to the module output. Include a clock and a reset to the module. The reset should asynchronously reset all four DFFs. Use a separate process for each DFF

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?