The velocity of the piston is vC=65.0 in/s jvC=65.0 in/s j the instant when θ=43.0∘θ=43.0∘ and ϕ=4.81∘ϕ=4.81∘ . Find the rotational speed of the crankshaft (member ABAB) at this instant. The crankshaft is rotating in the counterclockwise or positive direction

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false