1 Which of the following requires kinetic energy? Choose more than
one answer
Sleeping
Swimming
Turning a doorknob
Listening to music
Hitting a tennis ball
Waiting at a red light

Which accounts for an increase in the temperature of a gas that is kept a constant volume

Observations show that interstellar clouds can have almost any shape and

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.