A quarterback can throw a receiver a high lazy lob pass or a low quick bullet pass. these passes are indicated by curves 1 and 2 respectively in figure 4-23. (a) The lob pass is thrown with an initial speednofn21.5m/s and it's time of flight is 3.97s. what is its lunch angle. (b) the bullet pass is thrown with a launch angle of 25.0 degree. what is the speed of thisnpass? (c) what is the time of flight of the bullet pass

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?