Gerald works on a futuristic space station servicing interstellar space ships. He observes a ship traveling directly away from the space station at a speed of 0.6c. The ship launches a shuttle towards the space station with a speed of 0.7 c relative to the ship. What is the energy (including the rest energy) of the shuttle from the reference frame of the space station

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.)