Determine the phase of the following substances and find the values of the unknown quantities. Nitrogen: P = 2000 kPa, 120 K, u = ?, h = ? Nitrogen: 110 K, v = 0.010 m3/kg, u = ? Air: T = 100°C, v = 0.500 m3/kg, h

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.

Which lists the amplitudes of sound waves from these sources in order from greatest to least? busy roadway, kids whispering, average home chainsaw, diesel truck, rustling leaves kids whispering, vacuum cleaner, jet airplane library, conversational speech, music from speaker

If we decrease the amount of force and keep all other factors the same what will happen to the amount of work