If two pieces of ice are the same mass and volume but are different sizes will they melt the same?

Rohit is trying to tune an instrument

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

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