In control theory, assuming that a system is LTI, the Laplace transform of a form of this quantity yields the transfer function. The convolution of a function (15[1])f of x with a function named for this quantity of x minus y yields f of y; (15[2]-5[1])that is this function’s “sifting property.” (15[3])For a linear differential (-5[1])operator L, the Green’s (15[1])function of L (15[1])is (15[1])defined as the “response” (15[1]-5[1])form (15[1])of this (15[1])quantity. (15[2])In Tsiolkovsky’s rocket equation, multiplying this quantity with (*) gravity gives the effective exhaust velocity. (-5[1])The Dirac delta function, whose value is zero everywhere except at the origin, (-5[1])is alternatively known (10[1])as the “unit function” (10[1])of this quantity. (10[4])Assuming a general force (10[1])F of t, this quantity equals the definite integral of “F of t times d (-5[1])t.” (10[1])For 10 (10[1])points, name this quantity defined as the change of momentum. ■END■ (10[8]0[1])