The pressure of a gas with a pressure of 1.2 atm increases from 1.0l to 4.0l. what is the final presure of the gas assuming constant temperature.

Using the formula
V1P1=V2P2
where V1=1.0
V2=4.0
P1=1.2
P2=?
P2=V1P1/V2
P2=1.0*1.2/4.0
P2=0.3 atm

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.

At maximum height, kinetic energy is converted in potential energy  formula: at max height, ke = ½ * 0.27kg * (16m/s) ² = 34.56 j  so the remaining pe = (41.70 – 34.56)= 7.14 j = 0.27 kg * 9.8m/s² * h  = (9.8/7.14 * 0.27)so max height h = 5.08 or 5 m