HELP ME PLS A student placed 55 grams of 100 Celsius pure cooper into 100 grams of water at room temperature (23 Celsius). The temperature of water change to 26 degrees Celsius. Calculate the specific heat of the cooper in j/g*C.

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth