Question 4 of 10
2 points
what is the internal energy of 7.00 mol of n2 gas at 40°c? to solve this
problem, use the equation: udiatomie gas =
remember that r=8.31 j/(mol-k) and k = °c + 273.
o a 45.500
o b. 5820
o c. 11,600
o d. 18.2003

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.