The siren is moving away from the listener with a speed of 43m/s, and the listener moves toward the siren with a speed of 9m/s. What frequency does the listener hear if the siren admits a sound with 333hz. Speed of sound is 344 m/s

How can you improve the percent yield of copper in this lab? check all possible strategies that will you do so. measure reactants precisely. stir to the reaction take place. chill the reactants before combining them. wait patiently until the reaction completes. make sure to recover as much copper as possible.