A baseball player swings at a 0.15 Kg baseball and accelerates it at a rate of 30,000 m/s/s. The bat contacts the ball for 0.057 seconds. With what speed does the ball leave the bat? (assume the initial speed is 0, it is on a tee)

(the force is 4.5 × 10^-3 N)​

Is there any opitions? if you have the periodic table, the noble gases are 8a family, the halogen are the 7a family, and the nonmetal are  carbon, nitrogen, phosphorus, oxygen, sulfur, selenium, fluorine, chlorine, bromine, iodine and astatine.

Amicroscope, because these cells are so small that you would not be able to see them, or what they attack without it.

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.