The first 25 years of the twentieth century were momentous for the rapid pace of change in scientists’ understanding of the nature of matter. (a) How did Rutherford’s experiments on the scattering of a particles by a gold foil set the stage for Bohr’s theory of the hydrogen atom? (b) In what ways is de Broglie’s hypothesis, as it applies to electrons, consistent with J. J. Thomson’s conclusion that the electron has mass? In what sense is it consistent with proposals preceding Thomson’s work that the cathode rays are a wave phenomenon?
Chapter 23- Statement of Cash Flows The primary purpose of the statement of cash flows is to provide information about a company’s cash receipts and cash payments during a period. A secondary objective is to provide cash-basis information about the company’s operating, investing, and financing activities. The statement of cash flows therefore reports cash receipts, cash payments, and net change in cash resulting from a company’s operating, investing, and financing activities during a period. Its format reconciles the beginning and ending cash balances for the period. Usefulness of the Statement: o 1. The entity’s ability to generate future cash ﬂows . A primary objective of ﬁnancial repo