If a photon has a frequency of 1.15 × 1015 hertz, what is the energy of the photon?
Given: Planck's constant is 6.63 × 10-34 joule·seconds.

A.
5.82 × 10-49 joules
B.
7.62 × 10-19 joules
C.
8.77 × 10-12 joules
D.
1.09 × 10-12 joules

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor

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.