Atrain of mass m is headed due south at a geographic latitude and speed v. what is the horizontal force required from the rails to keep the train headed due south coming from the rotation of the earth, rotating at angular speed ? state both the magnitude and direction (east or west) of the force.

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.