The central processing unit (CPU) of a computer is determined to have one of its many conductors to be carrying 58 picoamps (pA) of current. How many trillion electrons flow through that conductor during a period of exactly 1.0 day? Remember, elementary charges and number of electrons are equivalent. The correct answer is between 10 and 50 trillion electrons.

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.