Suppose that taking the 256-point dft of fx[0]; x[1]; x[2]; : : : x[255]g yields a set 256 dft coeffcients that are mostly zero; in particular, suppose that there are only three nonzero dft coeffcients: x[0] = 512, x[8] =-64j and x[248] = 64j. find an equation for the n-th time-domain value x[n] that is valid for n = 0; : : : ; 255.

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?