Recent content by srk999

What determines the sign/direction of shear stress arrows in Mohr's circle? Please see pictures below. Why are the shear stress arrows drawn the way it is and not in the opposite directions?

How would you identify the members Q and R using this logic? Do we need to consider any member to be rigid, consider gravity, or only consider what is given in the free body diagram?

A proton (m = 1.7 * 10–27 kg, q = +1.6 * 10–19 C) starts from rest at point A and has a speed of 40 km/s at point B. Only electric forces act on it during this motion. Determine the electric potential difference VB-VA. Here is what I did: V = \frac{U}{q} U = qV = \frac{1}{2}mv^2 V_B - V_A...

I attached scans of the questions rather that typing it all here. It's also easier to read. Questions: http://img4.imageshack.us/img4/9306/33991727.th.jpg Attached Reference Materials: http://img40.imageshack.us/img40/6599/74821170.th.jpg

How to solve these integrals, such as- sqrt(a^2 + x^2) & sqrt(2 + x^2) Please be as descriptive and simple as possible. Please use only sin and cos if possible We are not allowed a calculator in the exam and will have to find numerical values.

From my observation I saw that the temperature goes up immediately after rainfall. Then it gradually cools down. I don't really know why it happens, but I think it happens because the ground releases heat (upward) in the form of moisture as water touches the ground. It is the heat trapped in the...