2. A hydrogen atom in a state having a binding energy (the energy required to remove an electron) of 0.85 eV makes a transition to a state with an excitation energy (the difference between the energy of the state and that of the ground state) of 10.2 eV.
(b) What are the higher quantum number and lower quantum number of the transition producing this emission?
(a) What is the energy of the photon emitted as a result of the transition?
1. As shown in th figure, two blocks with masses m₁ and m₂ (m₁=2m₂) are connected by a massless string that hangs over a pulley of mass M (M=2m₁) and radius R. The string does not slip. Treat the pulley as a disk.
(b) Assuming that the system starts from rest, find the speed of m₁ after it has fallen by H.
5. Regarding the reports on controls at service organizations (SOC Reports), which of the following statements is not true? (A) An SOC 1 report, Report on Controls at a Service Organization Relevant to User Entities' Internal Control Over Financial Reporting, is intended to meet the needs of user entities and their auditors. (B) SOC 1 Reports are used to plan and perform audits of the user entity's financial statements by user auditors. (C) The SOC 1 guidance for service auditors and the guidance for user auditors are both in the attestation standards. (D) SOC 2 Reports report about controls at a service organization that affect the security, availability, and processing integrity of the systems the service organization uses to process users' data and the confidentiality and privacy of the information processed by these systems.
4. Which of the following is an accurate statement regarding presentation and disclosure? (A) Auditors generally set the risk as low that all required information may not be completely disclosed in the footnotes. (B) Audit tests performed in earlier audit phases provides sufficient appropriate evidence about contingent liabilities and subsequent events. (C) Auditors do not conduct tests of controls related to disclosures when the initial assessment of control risk is below maximum. (D) In completing the audit phase, auditors evaluate whether the overall presentation of the financial statements and related footnotes complies with accounting standards.
3. Which of the following audit procedures is not commonly used to search for contingent liabilities? (A) Inquire of management (orally and in writing) about the possibility of unrecorded contingencies. (B) Review the minutes of directors' and stockholders' meetings for indications of lawsuits or other contingencies. (C) Review for contingent liabilities performed at the beginning and the end of the audit. (D) Analyze legal expense for the period under audit, and review invoices and statements from legal counsel for indications of contingent liabilities.