Avertical scale on a spring balance reads from 0 to 160 n . the scale has a length of 11.5 cm from the 0 to 160 n reading. a fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.95 hz .

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.)