1.
a rope is used to pull a metal box 20.0 m across the floor. the rope is
held at an angle of 30.00 with the floor and a force of 525 n is applied.
how much work does the force on the rope do?

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.