The differential equation that model an undamped system of 3 masses and 4 springs with external forces acting on each of the three masses is
m1x1''=-k1x1+k2(x2-x1)+u1(t)
m2x1''=k2(x1-x2)+k3(x3-x2)+u2(t)
m3x3''=k3(x2-x3)-k4x3+u3(t)
a)express the system using matrix notation x'=Kx+g(t) for...
If we lived around a blue colored sun, or one of any different color, how would we perceive our world? Neglecting the effects of humans evolving around our G2 sun, how would the color of the sky or anything else change if helios were not its current reddish tinge? As well as this, if we had...