How does electromagnetic radiation transfer energy from one place to another? Question 6 options:

it uses electric and magnetic fields, so it does not need a medium

it needs a medium so it can transfer energy from one molecule to the next

it is a type of mechanical wave

it allows the energy to "jump" from one spot to the next

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.)