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### Question 35713

Verified

Computer Networks

4. (P10, Page72)Consider a packet of length L that begins at end system A and travels over three links to a destination end system.These three links are connected by two packet switches. Let d;, si, and R¡ denote the length, propagation speed, and the transmission rate of link i, for i=1,2,3. The packet switch delays each packet by d proc- Assuming no queuing delays, in terms of d;, si, Ri, (i=1,2,3), and L, what is the total end-to-end delay for the packet? Suppose now the packet is 1,500 bytes, the propagation speed on all three links is 2.5*10$m/s, the transmission rates of all three links are 2 Mbps, the packet switch processing delay is 3 m sec, the length of the first link is 5,000 km, the length of the second link is 4,000 km, and the length of the last link is 1,000 km. For these values, what is the end-to-end delay? Read More ### Question 27139 Verified Thermodynamics The figure below shows a gas contained in a vertical piston-cylinder assembly. A vertical shaft whose cross-sectional area is 0.8 cm? is attached to the top of the piston. Determine the magnitude, F, of the force acting on the shaft, in N, required if the gas pressure is 3 bar. The masses of the piston and attached shaft are 24.5 kg and0.5 kg, respectively. The piston diameter is D = 5 cm. The local atmospheric pressure is 1 bar. The piston moves smoothly in the cylinder and g = 9.81 m/s?.Using multiple attempts will impact your score.20% score reduction after attempt 1As shown in the figure below, air is contained in a vertical piston-cylinder assembly such that the piston is in static equilibrium. The atmosphere exerts a pressure of 14.7 Ibf/in. on top of the 8-in-diameter piston. The absolute pressure of the air inside the cylinder is 16 lbf/in. The local acceleration of gravity is g-32.2 ft/s.Determine (a) the mass of the piston, in Ib, and (b) the gage pressure of the air in the cylinder, in psig, Read More ### Question 14359 Verified Kinematics of Machines • 2-40 Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel. During the process, 30 kJ of heat is transferred to the water, and 5 kj of heat is lost to the surrounding air. The paddle-wheel work amounts to 500 N:m. Determine the final energy of the system if its initial energy is 12.5 kJ. Read More ### Question 1586 Verified Thermodynamics (a) Sketch the cycle on a PV diagram.(b) Determine (where unknown) both T and P for states 1, 2, 3, and 4.\text { (c) Calculate } Q, W, \Delta U, \text { and } \Delta H \text { for each step of the cycle. }3.19. An ideal gas initially at 600 K and 10 bar undergoes a four-step mechanically reversible cycle in a closed system. In step 12, pressure decreases isothermally to 3 bar; instep 23. pressure decreases at constant volume to 2 bar; in step 34, volume decreases at constant pressure; and in step 41, the gas returns adiabatically to its initial state.Take Cp = (7/2)R and Cy = (5/2)R. Read More ### Question 17441 Verified Data Science Ques 6 Your goal is to navigate a robot out of a maze. The robot starts in the center of the maze facing north. You can turn the robot to face north, east, south, or west. You can direct the robot to move forward a certain distance although it will stop after hitting a wall.We’ll define the coordinate system so that the center of the maze is at (0, 0), and the maze itself is a square from (-1,–1) to (1, 1)a) Formulate this problem. This means you will have to describe initial state, goal test,successor function. and cost function. Successor function is a description of the robots successive actions after the initial state. Read More ### Question 28921 Verified Thermodynamics 3-51 A piston-cylinder device contains 0.005 m of liquid water and 0.9 m³ of water vapor in equilibrium at 600 kPa. Heat is transferred at constant pressure until the temperature reaches 200°C.(a) What is the initial temperature of the water?(b) Determine the total mass of the water.(c) Calculate the final volume.(d) Show the process on a P-V diagram with respect to saturation lines. Read More ### Question 35712 Verified Computer Networks Suppose users share a 3 Mbps link. Also suppose each user requires 150 kbps when transmitting, but each user transmits only 10 percent of the time. (a) When circuit switching is used, how many users can be supported?For the remainder of this problem, suppose packet switching is used. Find the probability that a given user is transmitting.Suppose there are 120 users. Find the probability that at any given time, exactly n users are transmitting simultaneously. (Hint: Use the binomial distribution.)Find the probability that there are 21 or more users transmitting simultaneously. Read More ### Question 30174 Verified Thermodynamics Question 7Determine the specific volume of superheated water vapor at 3.5 MPa and 450° based on (a) the ideal-gas equation, (b) the generalized compressibility chart, and (c) the steam tables. Determine the error involved in the first two cases. Read More ### Question 8003 Verified Kinematics of Machines 2- Problem 5.8: . A 1130-kg car is held in place by a light cable on a very smooth(frictionless) ramp, as shown in Fig. E5.8. The cable makes an angle of 31.0° above the surface of the ramp, and the ramp itself rises at 25.0° above the horizontal. (a) Draw a free-body diagram for the car. (b) Find the tension in the cable. (c) How hard does the surface of the ramp push on the car? Read More ### Question 35722 Verified Computer Networks 5. (P31,In modern packet-switched networks, including the Internet, the source host segments long, application layer messages (for example, an image or a music file) into smaller packets and sends the packets into the network.The receiver then reassembles the packets back into the original message. We refer to this process as message segmentation. The figure below illustrates the end-to-end transport of a message with and without message segmentation. Consider a message that is 8 * 106 bits long that is to be sent from source to destination in the figure. Suppose each link in the figure is 2 Mbps. Ignore propagation, queuing, and processing delays.(a) Consider sending the message from source to destination without message segmentation. How long does it take to move the message from the source host to the first packet switch? Keeping in mind that each switch uses store-and-forward packet switching, what is the total time to move the message from source host to destination host?Now suppose that the message is segmented into 800 packets, with each packet being 10,000 bits long. How long does it take to move the first packet from source host to the first switch? When the first packet is being sent from the first switch to the second switch, the second packet is being sent from the source host to the first switch. At what time will the second packet be fully received at the first switch?-Discuss the drawbacks of message segmentation.In addition to reducing delay, what are reasons to use message segmentation?c) How long does it take to move the file from source host to destination host when message segmentation is used? Compare this result with your answer in part (a) and comment.e) Discuss the drawbacks of message segmentation.) In addition to reducing delay, what are reasons to use message segmentation? Read More ### Newly Added ### Question 52874 Verified Chemical Process Calculations 2.17.6: Two distillation columns with ethanol, butanol, and propanol. Two distillation columns, which are overseen by engineers Gianna and Peter, separate three components. A liquid mixture enters the first column at 536 kg/s and contains 35.0 mass % ethanol (C₂H5OH), 15.0 mass % propanol (C3 H7 OH), and the balance butanol (C4 H9 OH). The bottom product stream of the first column contains 93.1 mass % B and no E, and 95.1% of the B in the feed stream is recovered in the bottom product stream. The overhead product of the first column is used as the feed stream to the second column. The overhead product from the second column contains 92.1% of the E inthe feed to this column. The composition of the overhead product stream is 91.5 mass % E and the balance P. Find the component mass flow rates (kg/s) exiting in the overhead product of the first distillation column. Stream numbering is same as PFD for question 1. m3, EEx: 284 kg/s= m3,p = Ex: 74.3kg/s m3, B =Ex: 15.7kg/s Read More ### Question 52873 Verified Chemical Process Calculations 2.17.7: Two distillation columns with three components. A pair of distillation columns are being monitored by Beatrix and Enrico. Benzene (B), toluene (T), and xylene (X) are fed to the first distillation column. The overhead product of the first column contains only benzene and toluene. Toluene is fed to the first column at 1020 mol/hr while 74.4% of the benzene fed to the first column ends up in the overhead product. The stream exiting the bottom of the first column has a flow rate of 1590 mol/hr with 28.5 mol % benzene, 23.8 mol% toluene, and the rest xylene. The bottoms product from the first column is fed to a second distillation column. Pure xylene exits the bottom of the second column while the overhead product contains only benzene and toluene. Determine the following three unknowns. Flow rate of xylene exiting the second column = Ex: 515 mol/hr Mole fraction of toluene exiting the second column = Ex: 0.582 Flow rate of benzene exiting the overhead product of the first column = Ex: 1.50E mol/hr Read More ### Question 52872 Verified Chemical Process Calculations 2.17.8: Making orange juice concentrate. Maximus and Theodora are optimizing a steady state processing making orange juice concentrate. A stream of oranges (0) and a stream of water (W, H₂O) enter a juicing machine. The exit stream from the juicing machine contains 55.8 kg/hr orange juice (OJ, MW = 108), 21.3 kg/hr pulp solids (PS), and 43.5 kg/hr water. The exit stream from the juicing machine enters a filter. The filter removes all of the pulp solids and 20.2% of the water entering the filter as one exiting stream. The other stream exiting the filter contains water and orange juice. The water/orange juice mixture is finally sent to an evaporator to produce a concentrate stream (80.1 wt% orange juice and the balance water) and a stream of pure water. The pure water is recycled, mixed with a fresh stream of pure water, and fed into the juicing machine. Determine the following three unknowns. Mole fraction of orange juice in the concentrate stream =Ex: 0.309 Mass flow rate of water entering the evaporator =Ex: 30.9 kg/hr Mass flow rate of water entering the overall system =Ex: 16.8 kg/hr Read More ### Question 52871 Verified Chemical Process Calculations 2.17.9: Preheater and distillation column. A preheater and distillation column are maintained by engineers Marcella and Julius. A stream of pure acetone (A, C3H6O) and a stream containing acetone, ethanol (E, C2H5OH), and butanol (B, C4H, OH)entering the preheater. One stream exits the preheater containing 144 mol/min butanol, some acetone,and some ethanol; the mole fractions of butanol and ethanol are 0.209 and 0.412, respectively. The stream of pure acetone entering the preheater is 2.42 times larger than the component flow rate of acetone in the other stream entering the preheater. The stream exiting the preheater enters a distillation column, and all of the entering butanol exits in the bottom product stream. The recoveries in the overhead product, which is defined and the ratio of component flow rate exiting to component flow rate entering the distillation column, of acetone and ethanol are 83.1% and 59.2%, respectively. Determine the following three unknowns. Mass fraction of apple in the solid waste =Ex: 0.632 Total flow rate of the concentrate =Ex: 8.82kg/min Flow rate of pure water entering the overall system =Ex: 8.95kg/min Read More ### Question 52870 Verified Chemical Process Calculations Engineers Sophia and Giles are modifying a process to make concentrated apple cider starting from a slurry - a slurry is a mixture of solids in a liquid that can normally be pumped. A slurry made with apple shaving a mass fraction of 0.422 and the balance water is fed to a juicer at a rate of 26.2 kg/min. Seventy percent of the apples entering the juicer leave as part of the solid waste stream (containing apples and water). The primary product from the juicer is cider (35.3 wt% apples and 64.7 wt% water). The cider is sent to an evaporator where concentrate - apple concentration increases to 51.5 wt% - is produced along with a stream of pure water that is recycled. The pure water stream leaving the evaporator is mixed with fresh water entering the process. The combined water stream mixes with pristine apples entering the process to create the slurry. Determine the following three unknowns. Mass fraction of apple in the solid waste = Ex: 0.632 Total flow rate of the concentrate = Ex: 8.82 kg/min Flow rate of pure water entering the overall system = Ex: 8.95kg/min Read More ### Question 52583 Verified Circuits Problem 3 For the following circuit, use nodal analysis to write the FOUR equations in standard form. DO NOT SOLVE. You must identify any quasi-supernodes, supernodes, auxiliary equations, and remove dependent variables. Your final equations may only have V₁, V2, V3 and/or V4 as unknowns. Put your final equations in standard form in the box provided. Read More ### Question 52582 Verified Circuits Problem 2 For the following circuit, write the FOUR mesh equations in standard form. DO NOT SOLVE. You must identify any super meshes, auxiliary equations, and re-move all dependent variables. Your equations may only have 11,12,13 and/or 14 as unknowns. Put your final equations in standard form in the box provided. Read More ### Question 52581 Verified Circuits Problem 1.1 Determine Reg in Ohms at the (a,b) terminals for the following circuit. Round your answer to the nearest single digit decimal place (tenths). Problem 1.2 Determine the voltage V, in Volts for the following circuit. Round your answer to the nearest single digit decimal place (tenths). Problem 1.3 Determine the current I, in Amps for the following circuit. Round your answer to the nearest single digit decimal place (tenths). Problem 1.4 Determine the power, P3n, delivered to the 302 resistor in Watts for the following circuit.Round your answer to the nearest single digit decimal place (tenths). Read More ### Question 52422 Verified Modern Physics 1A cruiser moves away from the planet Hoth at a speed of 0.5c. A frigate follows, catching up at a speed of 0.25c as viewed from the cruiser. With what speed does the frigate appear to be moving according to observers on the planet? You should use the relativistic velocity transformation, clearly defining all the parameters used. u^{\prime}=\frac{u-v}{1-\frac{u v}{c^{2}}} Read More ### Question 52404 Verified Linear Algebra In an election campaign, the popularity, B, as a percent of voters, of the governing Blue party can be modelled by a function of time, t, in days throughout the campaign as B(t) = 40 - 0.5t. The popularity, R(t), of the opposing Red party can be modelled by a composite function of B(t),R(B(t)) = 20 + 0.75[40 – B(t)]. Graph B(t) and describe the trend. Read More ### Submit query Getting answers to your urgent problems is simple. Submit your query in the given box and get answers Instantly. ### Submit a new Query Success Assignment is successfully created ### Homework Help for Every Problem You Have! 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