Alaska Mining Co. acquired mineral rights for $67,500,000. The mineral deposit is estimated at 30,000,000 tons. During the current year, 4,000,000 tons were mined and sold. Required: a. Determine the amount of depletion expense for the current year. b. Journalize the adjusting entry on December 31 to recognize the depletion expense. Refer to the Chart of Accounts for exact wording of account titles.

What is the opportunity cost (in civilian output) of a defense buildup that raises military spending from 4.0 to 4.3 percent of an $18 trillion economy? instructions: enter your response rounded to the nearest whole number?

Ursus, inc., is considering a project that would have a five-year life and would require a $1,650,000 investment in equipment. at the end of five years, the project would terminate and the equipment would have no salvage value. the project would provide net operating income each year as follows (ignore income taxes.):

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e.g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.