Ablacksmith is flattening a steel plate that measures 10 cm × 15 cm × 1 mm. he has heated the plate to 900 k. if the emissivity of the plate is 0.75, what is the total rate atwhich it radiates energy

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.)

What type of force holds atoms together in a crystal?

Which of hubble’s discovery support the big bang theory