I would say it's <span>C. the Moon
</span>
Answer:
A
Explanation:
60 + 30 = 90
90 divided by 3 = 30
30 divided by 60 = 0.5
so your answer is 0.5 m/s
Answer:
2 x 10^-8
Explanation:
the formula of wavelength is
the speed divided by frequency
so you have the speed given = 3.0x10^8m/s
and frequency = 1.5×10^16 Hz
so wavelength = 3.0x10^8m/s / 1.5x10^16 Hz