A1.0 kg object moving at 4.5 m/s has a wavelength of:
a) 1.5 × 10-34 m
b) 2.9 × 10-33 m
c) 7.4 × 10-35 m
d) 1.4 × 10-34 m
e) 2.9 × 10-34 m

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.)