What is the convection pattern between 30°S and 30°N latitude? A. Cooler air rises and moves toward the equator, then warms and falls and moves away from the equator.
B. Cooler air rises and moves away from the equator, then warms and falls and moves back to the equator.
C. Hotter air rises and moves toward the equator, then cools and falls and moves away from the equator.
D. Hotter air rises and moves away from the equator, then cools and falls and moves back to the equator.

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.