The magnitudes of two vectors vector a and vector b are a = 6 units and b = 1 units. what is the smallest possible magnitude of the sum, vector a + vector b?

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.

B) as the temperature increases, the kinetic energy of the particles increases.|-/