7. Calculating Imagine there is a volcanic island arc on the surface of the lithosphere above the area where the descending plate has a depth of 100 km. Approximately how far north of this trench are the islands located? Show all calculations.

The mini-refrigerator fire was most likely caused by what type of wiring?

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.

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.