A racket ball is struck in such a way that it leaves the racket with a speed of 4.86m/s in the horizontal direction. When the ball hits the court, it is a horizontal distance of 1.93m from the racket.

find the height of the racket ball when it left the racket?

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)