how can you account for the differences in the entropies of combination of methyl propane (-1465J/mol K) and butane (1465J/mol K)

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem