The force exerted by a rubber band is given approximately by F=F0[L0−xL0−L20(L0+x)2]F=F0[L0−xL0− L02(L0+x)2] where L0L0 is the unstretched length, xx is the stretch, and F0F0 is a constant. Find the work needed tostretch the rubber band the distance, x.

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.

Based on its type of chemical bond, which of the following has the highest boiling point? potassium chloride ethyl alcohol water ammonia

An object is kept at 45 m high and how much time will it take to reach the ground