December 2016

A little past 3pm a man decided to take a 20- minute coffee break. When he returned, the minute hand was as much ahead of the hour hand as it was before behind it .what was the time when he decided to take a break?

This is for Inverse Laplace Transform.

What will the Region of Convergence (Pole-zero plot) look like if the pole is equal to zero? The zeroes or the numerator has values but the poles or the denominator is just s.

hey...can anyone here check my solution to the problem??not sure whether I got it correctly and do not want to pay https://www.chegg.com/ or http://yourhomeworkhelp.org for the thing I practically did myselfthanks

I have a question regarding Problem 719. I've got the correct answer for solving for R. But when i try to solve using my own way of solving the midspan deflection, my answer is wrong. So i consult your solution. Although your answer is the same as in the textbook, I was confused why the tangent line was drawn from B which is by inspection, the tangent line drawn from a fixed end is horizontal.

Thank you for your response.

Arthur

A balloon rises from the ground with a constant acceleration of 4ft per sec^2. Five seconds later, a stone is thrown vertically up from the launching site. What must be the minimum initial velocity of the stone for it to just touch the balloon? Note that the balloon and stone have the same velocity at contact.