PHYSICS 5A Midterm: physics5A-fa2016-mt1-Pyle-exam
Document Summary
Simple computation and basic conceptual physics problems (45 pts) Please answer these questions in less than a few sentences or with just a few lines of computation. ~a(t) = bt2 i + c cos( t) j for a particle with the initial conditions ~v(0) = d i and ~x(0) = e j: (2 pts) calculate ~v(t, (3 pts) calculate ~x(t, (5 pts) geostationary orbit: A satellite that circularly orbits the earth in the plane of the equator with an angular velocity equal to that of the earth"s rotation about its axis, , is said to be in geostationary orbit. This is a very popular orbit for communication satellites because ground based communication antennas don"t have to constantly move to track the satellite. Calculate the radius of the orbit, rg, in terms of g, mass of the earth, me, and : (5 pts) i measure my weight with a spring based scale at both the north pole and at the equator.
