A box has a length of 18.1 cm and a width of 19.2 cm, and it is 20.3 cm tall. a. what is the volume?

b. How precise is the measurement
of length? Of volume?

c. How tall is a stack of 12 of these boxes?

d. How precise is the measurement of the
height of one box? Of 12 boxes?

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.