Juan (mass 80.4 kg) can do work for about 1.5 minutes at the rate of 1 hp (746 W). How long will it take him to climb 3 flights of stairs, a vertical height of 12 m?

Which is not true of the intertropical convergence zone? a) it features heavy precipitation b) it's where the trade winds collidec) it's a high-pressure zone with sinking air d) it is also known as the doldrums