Electrical Engineering Answers

a closed surface is defined in spherical coordinates by 3<r<5,0•1π<0<•3π,1•2π<Fi<1•6π find the volume enclosed. hint (dv=r^2sina ddr,da,dfi)

1.    Two sides of a square are on the line x + 10y – 10 = 0 and x + 10y – 5 = 0. Find the area of the square.

Generate a Cosine signal and one unit step signal using MATLAB codes

1. Write MATLAB codes to find the EVEN and ODD parts of the signal x(t)=e^2t

2. Write MATLAB codes to find the energy and power of the signal x(t)= 10 sin(10 πt)

Write a Matlab program to perform Amplitude scaling, Time Scaling and Time Shifting on the signal x(t)= 1+t, for t=0 to t=2.( Imagine arbitrary scaling factor)

X(t) = t-2 for -2<=t<=0

= 2-t for 0<=t<=+2

= 0 otherwise

Find out the Energy and power of the signal. Also check whether the signal is energy signals and power signals

Determine the Energy and power of del(t)

Determine the Energy and power of the signals.

X(t)=e^i(2t+π/2)

Extract the even part and odd part of the given signals,

1) x(t)=e^t

2) x(t)= 3+2t+5t^3

Prove, sine(0)=1