winterWx
What is the average translational kinetic energy of nitrogen molecules at 1500 K, in the following units? (a) J (b) eV I already provided the formula for average KE in Joules, in an answer to a separate question of yours. average KE = (3/2) k T 1 eV = 1.602*10^-19 Joules Note ...
winterWx
Compute the rms speed of a nitrogen molecule at 31.0°C. At what temperature will the rms speed be half that value? At what temperature will the rms speed be twice that value? T = 31 C = 304 K Mass M = 28 g/(6.02*10^23) = 4.65*10^-23 g = 4.65*10^-26 kg The average kinetic e...
winterWx
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. The force of the kick is given by F(t) = [(5×106)t - (2.5×109)t2] N for 0 ≤ t ≤ 2.0×10-3 s, where t is in seconds. (The player's foot is in contact with the ball fo...
winterWx
A 0.30-kg softball has a velocity of 12 m/s at an angle of 30° below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball while it is in contact with the bat if the ball leaves the bat with a velocity of 17 m/s...
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