A boat heads due north from the south bank of a river that flows at 1.420 m/s east.  The boat's velocity relative to the water is 33.579 m/s north.  If the river is 1,109.96 meters wide in the section of the river the boat is crossing, how long will the boat take to reach the north bank?  seconds (two decimal places)

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)