Numerade

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A resonance structure of the ion NCO- is drawn so that the central atom of the ion has a formal charge of zero and the most electronegative element in this ion has a formal charge of 1. What will be the formal charge of the remaining atom in this ion?the central atom of the ion has a formal charge of zero and the most electronegative element in this ion has a formal charge of 1. What will be the formal charge of the remaining atom in this ion?the central atom of the ion has a formal charge of zero and the most electronegative element in this ion has a formal charge of 1. What will be the formal charge of the remaining atom in this ion?

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(b) OBCD is a plate being suspended by cables AB and AC at B and C respectively (see diagram below). The tension in the cable AC is 1000N. 600 mm D y 360 mm 920 mm A C 900 mm B X Write down the coordinates of following locations (points) (i). O (ii). A (iii). B (iv). C (v). D (c). Determine the direction cosines of the tension in AC and hence its moment about BO

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Question-1: Determine the output waveform for the inputs of figure, respectively. Note: Diode is Silicium ($V_k$=0.7 V). (Please solve it by showing the three solution steps in detail.)

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Prove that the series converges: $\sum_{n=1}^\infty \frac{(-1)^n \sqrt{n}}{2n+1}$

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For most terrestrial ecosystems, pyramids composed of species abundance, biomass, and energy are similar in that they have a broad base and a narrow top. The primary reason for this pattern is that ________.

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1. FastDrop economic value You are planning to place your money in safe government securities, which currently offer a 4% riskless rate of return. Before making this investment, an entrepreneur approaches you and asks you to purchase her new business venture, FastDrop, a delivery service for legal documents that would produce a single cash inflow of $80,000 at the end of the year. You have determined that 6% is an appropriate risk premium for this investment. How much would you be willing to pay for Fast Drop? Question 2 1 pts 2. FastDrop Internal Rate of Return In question 1 you determined the economic value of FastDrop Delivery Service, given its end-of-year cash inflow of $80,000 and its opportunity cost of 10%. In further negotiations the entrepreneur offers to sell you the business for $70,000. What is the IRR of this offer? Question 3 1 pts 3. FastDrop NPV Given the project's opportunity cost and cash flows, determine the project's Net Present Value.

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Question I Dell computer has a £1 million receivable that it expects to collect in one year. Suppose the interest rate on pounds is 15%. How could Dell protect this receivable using a money market hedge? (1) (a) borrow £1 million today (b) lend £1 million today (c) borrow £869,565 today (d) lend £986,754 today Question II An Australian firm that sources inputs, manufactures and sells its products in Australia (1) (a) Faces no operating exposure, since its customer are Australian citizens (b) Faces operating exposure if a foreign company operates in the same Australian market (c) Faces no transaction exposure (d) All of the above (e) Both (b) and (c)

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17. Add each of the following in the indicated base. (Blocks not required) 143$_8$ + 275$_8$ 18. Subtract each of the following in the indicated base. (Blocks not required) 253$_8$ - 175$_8$

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Question 2: 8 marks Rapid corrosion occurring under steel bolts securing an aluminium guard rail. a. Two types of corrosion could happen in this scenario. What are they? (2 marks) b. Briefly describe how these types of corrosion occur (3 marks) c. Briefly describe how they could be prevented or minimised (3 marks) Question 3: 8 marks Answer the following questions for these two steel samples: (i) AISI 1010 and (ii) AISI 1060. a. Sketch a simple phase diagram of Fe-C, and sketch the hardening and normalizing processes for each sample (4 marks) b. Sketch the TTT diagram for each sample (2 marks) c. Sketch the hardenability diagram for each sample (2 marks)

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4) 25 pts. The jib shown is subjected to the forces shown. Replace these forces with a single equivalent resultant force. Specify its magnitude, direction and location with respect to point B.

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richard n.