1. Scatterplots, bar graphs, pie graphs, and line graphs all have different purposes. Which type of graph best fits each purpose?
a. Grouping data for comparison
b. Comparing parts of a whole
c. Seeing if two variables are related, such as in cause and effect

Which two particles are found in the center of an atom

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.