Copper has a heat capacity of 0.386 J/g °C. If 15 g of copper has a temperature of 180 ºC and it is added to a glass of water causing the temperature to decrease to 80ºC. What is the amount of heat released by the metal?

    5.5 n======    assuming that      we have      m = 0.145 kg    a = 38 m/s²therefore    5.51 n, but two significant figures.final answer: 5.5 n

When someone eats food

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.