1 meter = 100 centimeters, so 2.8 meters is 280 centimeters.
Answer:
Hey
You.
You emit infered light via heat.
The sun
The sun emits <em><u>all</u></em> frequincies of light, but mostly yellow light.
Your microwwaves
As your food gets hotter the microwwaves shake up the water molecules because they are the perfect frequincy to do so.
Wbob1314
Pure substances can be categorize into "Elements" and "Compounds"
Hope this helps!
Answer:
I think is A 690 nm or c 500 nm