In the overhead view of the figure- a 430 g ball with a speed v of 9-0.docx

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In the overhead view of the figure, a 430 g ball with a speed v of 9.0 m/s stikes a wall at an angle8 of 25 and then rebounds with the same speed and angle. It is in contact with the wall for 10 ms. In unit-vector notation, what are (a) the impuise on the ball from the wall and (b) the average force on the wall from the bal? oblem (a) Namber l Units (b) Number Units OType here to search ? Backspace Shift Alt AltE Ctri Solution We know Impulse=change in momentum Initial momentum=0.43*(vcos(theta)i-vsin(theta)j) Final momentum=0.43*(vcos(theta)i+vsin(theta)j) Change in momentum=0.43*2*v*sin(theta)=-3.27j Impulse=-3.27j (b) force=impulse/time=327.1 N .

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In what way (or ways) is the current Knowledge Revolution a child of the Industrial Revolution? Is this a new revolution or simply an extension of the 18th-century revolution? Given the history, is it perhaps more appropriate to call the current revolution a Communications Revolution? Solution the present revolution is information oriented revolution, and its a new phase. why I am saying its a new phase, in this fast generation, every thing is fast and too fast. people cant live in the same world where they spent on yester day, they always looking for chang and what more and what next? the life span of these are much less, with in span of months only these strategies are going to be expire and new strategies are going to be come into the picture. communication revolution is a part of information revolution. .

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In the Lewis structures listed below, M and X represent various elements in period 3 of the periodic table. Write the formula of each compound using the chemical symbols of each element: 3+ MX: Solution a) The first compound formed will be MX [since the cation is present in +2 oxidation astate and anion is present in -2 oxidation state] The compound will be MgS b) The second compound formed will be MX3 [since the cation is present in +3 oxidation astate and anion is present in -1 oxidation state] The compound will be AlCl3 c) The third compound formed will be M2X [since the cation is present in +1 oxidation astate and anion is present in -2 oxidation state] The compound will be Na2S .

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In the independent data marts architecture: the independent data marts are developed from a single, top-down plan. there is no central data warehouse. there is no need for source systems data. the data marts are linked together so data can be shared. Solution b. there is no central data ware house the data mart is a type of datawarehouse: in which data is processed for single task it uses data from operational sources they are not linked .

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iron (III) chloride + sodium thiosulfate - write the half reactions and be ionic equation iron (III) chloride + sodium thiosulfate - write the half reactions and be ionic equation iron (III) chloride + sodium thiosulfate - write the half reactions and be ionic equation Solution reaction, complete molecular equation, 2FeCl3 + 2Na2S2O3 --> 2FeCl2 + Na2S4O6 + 2NaCl half reactions, Fe3+ + e- --> Fe2+ 2S2O3^2- --> S4O6^2- + 2e- net-ionic equation, 2Fe3+ + 2S2O4^2- --> 2Fe2+ + S4O6^2- .

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It has been said that the advantage that leading-edge retailers such as Dell and Wal-Mart have over their competition isnt technology, its their management. Do you agree? Why or why not? Solution I absolutely agree. It is true that certain technology, such as Wal-Mart\'s continuous inventory replenishment system, can give certain firms a competitive edge to start. Over time however, other firms in the industry will be able copy and adopt similar technologies. What really sets firms like Wal-Mart and Dell is the business models they have created, for example Dell\'s direct-sales approach to the marketing of their products, and specifically their ability to adopt radically different business processes which leverage the technology at their disposal. The creation of business models and the shaping of business processes are management responsibilites, and thus management should receive credit for the successes of both Wal-Mart and Dell. (D.B) .

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ISP who has allowed them the use of 4 externally routable IP addresses to transmit data across the Internet. Assuming that only non-privileged ports are used, what is the maximum simultaneous number of TCP connections that can be supported through a NAT gateway using those 4 addresses? Solution NAT behavior for source TCP port range for connections is unspecified. as the port number is 16 bit, there can be 65535 TCP connections can be defined for any given client. provided the listening port is open. The NAT allocates a mapping for the first initiated connection by the internal endpoint to the external endpoint in case of externally initiated connections.These connections can be re used some times. In this scenario, TCP can have maximum 4 simultaneous connections at any given time. .

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Is TOD a input or output?? Is this correct?>> Inputs: start, stop, flow meter, counter Outputs: pump and full light. Not sure if TOD is a input or output. A TOD is use to take the interger value in the counter accumulator, convert it to BCD(binary coded decimal) and then move this BCD value to the control panel LED display (O:4). Solution Inputs to PLC are Start,Stop,Flow meter, Counter Counter acts as input in the sense that when counter reaches a set value DN bet is set and From the memory input is send to control the light and pump. Outputs:Full Light, Pump. CU and DN are also outputs whose values are stored in memory and which are then used as inputs. TOD is neither input nor output. It is just an intermediate stage for data manipulation i.e. convert integer to BCD value. .

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Is there a universal code for ethical business behavior? (Check the December 2005 issue of Harvard Business Review for Solution These 5 Virtues have helped Propel our company to where we are today and will be foundation of our future. A. Integrity B.Respect C.Trust D.Quality E.Citizenship Doing the Right thing means we and all our vendors and subcontractors will . Uphold the highest personal and Professional standards . Comply with all applicable Laws,rules and regulations . Deter wrong doing, and . Abide by other Policies and Procedure we adopt the govern the conduct of our employees and directors. .

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In the following search function for a linked list (using the Node and NodePtr as defined in the text), why is there code to check if here is NULL?. NodePtr search(NodePtr head, int target) { nodePtr here = head; if (here == NULL) { return NULL; } else { while( here->data != target && here->link != NULL) { here = here->link; } if (here->data == target) { return here; } else { return NULL; } } A. the list may be empty B. the list may be full C. there is no reason for that code to be there D. A and B Solution A. the list may be empty if head is NULL means no elements in the list .

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Is it easier to perform a computer forensic investigation if the suspectâ€™s computer is a Linux or UNIX system instead of Windows? Does the OS affect the process at all? Consider all flavors of Linux/UNIX and Windows. Solution Answer:) It is easier to perform a computer forensic investigation if the suspectâ€™s computer is a Linux or UNIX system instead of Windows. Yes, the type of OS affects the investigation process. This is because every OS has its own configuration and configured services. The analysis of these different configuration and services results in different investigation process. .

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Is a public park considered to be a public good? Why or why not? Solution In economics, a public good is a good that is both non-excludable and non-rivalrous in that individuals cannot be effectively excluded from use and where use by one individual does not reduce availability to others. Gravelle and Rees: \"The defining characteristic of a public good is that consumption of it by one individual does not actually or potentially reduce the amount available to be consumed by another individual\". Public goods include fresh air, knowledge, lighthouses, national security, flood control systems and street lighting. Public goods that are available everywhere are sometimes referred to as global public goods. [1] There is an important conceptual difference between the sense of \'a\' public good, or public \'goods\' in economics, and the more generalized idea of \'the public good\' (or common good, or public interest),\" .

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