a man runs the London Marathon at an average speed of 8 mph, the route is 26 miles, what was his time in hours and minutes?

What happens in a global convection cell

What are igneous intrusions and extrusions

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.