The higher an electromagnetic wave's frequency, the lower its
o a. speed
o b. energy
o c. wavelength
o
d. amplitude
surn

C)wavelength

Explanation:

if the wavelength of a light wave is shorter, that means that the frequency will be higher because one cycle can pass in a shorter amount of time. ... That means that longer wavelengths have a lower frequency. Conclusion: a longer wavelength means a lower frequency, and a shorter wavelength means a higher frequency!

give me abc and i will get it for u.

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b