Kenny klutz drops his physics book off his aunt’s high-rise balcony. It hits the ground below 1.5 s later. A. with what speed does it hit?

B. How high is the balcony?
Ignore air drag.

Which of the following are guidelines to follow for obtaining accurate observations

Which is the most accurate name for the covalent compound p2o3?

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.