The half-life of rubidium-87 is 48.8 billion years. What is the length of 6 half-lives? Help me plz

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.