Thomas Edison is the answer im 100% sure of it.
Distance= Time×Speed
= 1800×1.5
= 2700 m
I am not sure it's right. the question itself is confusing.
Explanation:
Blue or violet light has the shortest wavelength. White light is a combination of all colors in the color spectrum.
It would be A because it would make sense
Start with 2,000 grams.
After 1 half-life, 1,000 grams are left.
After another half-life, 500 are left.
After another half-life, 250 are left.
After another half-life, 125 are left.
That was FOUR half-lifes.
X = 4 .
