A 2.15 kg block of iron at 415 C is put in 0.625 kg of water at 15.0 C. They come to equilibrium at 100C, and some (but not all) of the water boils off. How much steam boils off? PLEASE HELP

What even is this. where is the question

The anwser is: wave a has a greater pitch and frequency.

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.