In some wind tunnels the test section is perforated to suck out fluid and provide a thin viscous boundary layer. the test section wall in fig. p3.33 contains 1200 holes of 5-mm diameter each per square meter of wall area. the suction velocity through each hole is vs 5 8 m/s, and the testsection entrance velocity is v1 5 35 m/s. assuming incompressible steady flow of air at 208c, compute (a) v0, (b) v2, and (c) vf, in m/s.

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?