Wavelength = Speed/Frequency
Speed = speed of light = 3*10^8 m/s
Frequency = 8.9*10^9 Hz
Wavelength = (3*10^8)/(8.9*10^9) = 0.0337 m
The answer to the first question is D. Sun.
For the next one the answer is D. The water droplets fall to earth as rain.
Next one is the Sun I think. Hope these answers help (sorry if I missed one, the numbers were a little wonky)
Answer:
dttydghcghcghdytdftygfvghxk,ghc
Explanation:
Answer:
A
Explanation:
The coaster wouldn’t eventually stop because there’s no fiction to stop it. In order for a object to stop, there must be a opposing force ( in this case, fiction).
It is true that the coaster could use hills to stop, but the coaster can’t use flat section to stop.
So what I think is that the answer is A.
Fun Fact:
It would be really tough just to stand up without friction.
I hope this help and have a nice day :)
A negative ion is a atom that has an extra electron, but the same # of protons
