100 g of a metal A at 140°c is dropped into 100g of water at 20°c contained in calorimeter mass 80g. If the final temperature of the mixture is 40°c, the specific heat capacity of A is? Leave your answer in j/kg/k​

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Asher cycles 12 miles in 16 hours. what is his speed?