Why does increasing the heat under a pan of boiling water not decrease the cooking time for hard-boiled eggs? (Select all that apply.) Increasing the heat under the pan will not raise the water temperature.
Increasing the heat under the pan will raise the temperature, but eggs are not affected by this.
Increasing the heat under the pan will only evaporate water faster.
Increasing the heat under the pan will raise the pan temperature, but not affect the eggs.
Increasing the heat under the pan will increase the boiling point of water and therefore not affect the eggs.

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.