Which of the following statements is  not  true regarding physical properties and changes?                 a.  a series of physical changes, such as filtration and heating, can be used to separate substances with different physical properties.      b.  physical changes include evaporating, boiling, and dissolving.      c.  physical properties can be observed without any change in the substance's identity.      d.  physical changes can change compounds into elements.

Precision dyes is analyzing two machines to determine which one it should purchase. the company requires a rate of return of 15 percent and uses straight-line depreciation to a zero book value over the life of its equipment. ignore bonus depreciation. machine a has a cost of $462,000, annual aftertax cash outflows of $46,200, and a four-year life. machine b costs $898,000, has annual aftertax cash outflows of $16,500, and has a seven-year life. whichever machine is purchased will be replaced at the end of its useful life. which machine should the company purchase and how much less is that machine's eac as compared to the other machine's

Which of the following statements is true regarding the reporting of outside interests and the management of conflicts? investigators are responsible for developing their own management plans for significant financial interests. the institution must report identified financial conflicts of interest to the u.s. office of research integrity. investigators must disclose their significant financial interests related to their institutional responsibilities and not just those related to a particular project. investigators must disclose all of their financial interests regardless of whether they are related to a research project.

This problem has been solved! see the answerwhich of the following statements is correct? the consumer price index is a measure of the overall level of prices, whereas the gdp deflator is not a measure of the overall level of prices. if, in the year 2011, the consumer price index has a value of 123.50, then the inflation rate for 2011 must be 23.50 percent. compared to the gdp deflator, the consumer price index is the more common gauge of inflation. the consumer price index and the gdp deflator reflect the goods and services bought by consumers equally well.