1. In the figure below, a crate of mass m = 130 kg is pushed at constant speed up the frictionless ramp (0 = 35.0°) by a horizontal force F. (a) What is the magnitude of ?
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(b) What is the force on the crate from the ramp? (Enter the magnitude.)
N

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.)