An ideal gas, initially at a volume of 3.75 L
and pressure of 8 kPa, undergoes isothermal
expansion until its volume is 5 L and its pressure is 6 kPa.
Calculate the work done by the gas during
this process.
Answer in units of kJ.

008 (part 2 of 2) 10.0 points
Find the heat added to the gas during this
process.
Answer in units of kJ.

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.