(a) Compute each project's annual net cash flow. (b) Compute payback period for each investment. Complete this question by entering your answers in the tabs below. Compute each project's annual net cash flow. (a) Compute each project's annual net cash flow. (b) Compute payback period for each investment. Complete this question by entering your answers in the tabs below. Compute payback period for each investment. Information for two alternative projects involving machinery investments follows. Project 1 requires an initial investment of $172,000. Project 2 requires an initial investment of $110,000