Answer:
radio
microwave
Infrared
Visible
Ultraviolet
X-ray
Gamma ray
I hope this helps you a little bit
I think the answer would be letter a
Answer:
Wavelength, 
Explanation:
We have,
Velocity an electron is 
Mass of an electron is 
It is required to find the wavelength of electron. The De-Broglie wavelength of an electron is given by :

h is Planck's constant

So, the wavelength of an electron is
.
Answer:
Explanation:
PE = mgh where m is mass, g is the pull of gravity, and h is the height to which the object can possibly fall.
PE = 3.0(-9.8)(-12.4) so
PE = 360 J, rounded to the correct number of sig figs.