Prove that the geodesic on a circular cylinder is a helix. [Hints: Roll a piece of lined paper into a cylinder to see the helical curves. Notice that rolling up the paper does not change the geodesic property of the curves on the surface, Why not

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document