Use matlab to plot the three types of damping (force vs velocity). show your plots on a single page. a) coulomb damping (friction) for 3kg 3kg block sliding on a surface with a coefficient of friction, n 0 3. b) viscous damping, c n mm s 3 / ( / ). c) aerodynamic damping in air at sea level. the block has a frontal area of m2 1 and a drag coefficient of 0 29 .

Photons with the highest energy have the longest period

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?