Scaffold legs can rest on hollow block.
Answer the following statement true (T) or false (F)
False
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Vector R in Figure 4.9 is the difference between vectors T and S. If S is inclined at 25° from the vertical and the angle between S and T is 35°, calculate the magnitude and direction of vector R. The magnitudes of S and T are 21 cm and 38 cm, respectively.
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Charles Enterprises got into the drone manufacturing business at the inception of the technology. Net cash flows (in $ million units) for years 0 through 5 had its ups and downs as shown below. However, a few years ago, Charles started selling 3-D printable, disposable drones that can be printed, assembled, and launched with different types of sensors in remote locations—ships, isolated land areas, etc. The net cash flows for the last 5 years have improved considerably. With the assistance of the “guess” option in the IRR function, perform a thorough analysis of the NCF series using the following questions.
(a) Find all i* values between ?100% and +100% for the NCF series for years 0 through 5.
(b) Find all i* values for the years 0 through 10.
(c) Did the i* analysis reflect the two sign change rule predictions with this range of i* for the 5-year period? For the 10-year period?
(d ) Plot i* versus PW for years 0–5 and years 0–10 using two scatter charts.
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Which if the following is true about a soil quality index (SQI)?
A) Soil quality indices may be used to monitor the effects of changes in soil management practice over time. B) The SQI must be related to a particular functional goal for the soil in the ecosystem. C) Soil pH, bulk density (Mg m-3 ) and soil active C levels (mg kg-1 ) may all be averaged together in a SQI. D) All of the above are true. E) None of the above is true.
Agitating the part in the quenching medium:
A) Breaks down the vapor barrier for more rapid quenching B) Causes warping and bending C) Prevents a fire from occurring D) Causes the steel to harden to a depth of only one inch