Repeating figure shows a single short-shoe drum brake. Find its torque capacity and required actuating force for $a=100, b=70, e=20, r=30, w=50 \mathrm{~mm}$, and $\theta=35^{\circ}$. What value of $c$ will make it self-locking? Assume $p_{\max }=1.3 \mathrm{~MPa}$ and $\mu=0.3$. with the drum rotating clockwise.

The right lymphatic duct drains lymph from the ___.

What stereochemistry do you expect for the trisubstituted alkene obtained by E2 elimination of the following alkyl halide on treatment with KOH? (Reddish brown = Br.)

Antiballistic missiles (ABMs) are designed to have very large accelerations so that they may intercept fast-moving incoming missiles in the short time available. What is the takeoff acceleration of a 10,000-kg ABM that expels 196 kg of gas per second at an exhaust velocity of $2.50 \times 10^{3}\ \mathrm{m} / \mathrm{s}?$