PHYSICS PHYS 101 Iowa State

Plane An airplane needs a minimum air speed of 100 miles per hour (Va) in order to land. The runway is at a 30 degree angle to a 25 mile per hour wind (Vb) which is blowing from the east. What is the speed relative to the ground of the airplane when

221Fall2007 Phvsics 11 September Written HomeworkdueTuesday of a 1- You headdirecttyacross straightriver ofwidth 100r4 surimmingataspeed bankhavingbeenswept You arriveatthe opposite 1.5nrlsrelativetothe water. of a downstream distance 50 m. (a) How

ExamI Physics 221,FaLt2007 1. A book is at rest on a desk top. Which of the following forces forms a Newton\'s third law pair with the book\'s weight? A) The normal force of the table on the book B) The force of the book on the table ;Q The gravitatio

Physics221Fall2007 August28 Written HomeworkdueTuesday equalslOa physicsis the stutce.Oneshake A unit of time usedin microscopic l-thanthereare (or less)shakes in a second are seconds.(a) How manytimesmore is the whereas universe years, haveexisted