At what temperature will the velocity of sound double than thevelocity in air at 22°ca) 1000k b) 1180k c) 1120kd)1200k

Why there is no inductive reactance in dc circuits

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20