G Problem 5. Use direct integration to compute the convolution y(t) = x(t) ∗ h(t) of the following pairs of continuous-time signals: (a) x(t) = e −tu(t) and h(t) = e −2tu(t). (b) x(t) = sin(t)u(t) and h(t) = u(t).

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.