A physical therapist is evaluating a 50 y/o patient that com…

A physical therapist is evaluating a 50 y/o patient that complains of numbness and weakness of the right hand.  The image below shows the region of the paresthesia (the green and yellow shaded regions).  On exam, the therapist notes a positive (+) Flick Maneuver and weakness of finger flexion in the 2nd and 3rd digits.  Based on the given information, which of the following is the most likely diagnosis?    

FIGURE 8-2 Swimmers at a water park have a choice of two fri…

FIGURE 8-2 Swimmers at a water park have a choice of two frictionless water slides (see Figure 8-2). Although both slides drop over the same height, h, slide 1 is straight while slide 2 is curved, dropping quickly at first and then leveling out. How does the speed v1 of a swimmer reaching the end of slide 1 compares with v2, the speed of a swimmer reaching the end of slide 2?

Let G=(V,E) be a directed, weighted graph with arbitrary wei…

Let G=(V,E) be a directed, weighted graph with arbitrary weights (this is, weights can be negative). You are further told there is exactly one edge e=(s, v) with negative weight. True or False: there is an algorithm to find the length of the shortest path from s to all other vertices in time O((m+n) log n).