Final answer:
The energy of a wave with a frequency of 4.4 x 10^18 Hz is calculated using the formula E = hf, yielding an energy of 2.9152 x 10^-15 joules.
Step-by-step explanation:
To calculate the energy of a wave with a given frequency, we use the formula E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the wave. Planck's constant (h) is 6.626 × 10^-34 J·s (joule-seconds). Given that the frequency (f) is 4.4 x 10^18 Hz, we can substitute the values into the formula.
E = (6.626 × 10^-34 J·s) (4.4 x 10^18 Hz) = 2.9152 × 10^-15 J
Therefore, the energy of the wave is 2.9152 x 10^-15 joules.