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Marlene Habib

Marlene H.

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Viewed Questions

What is the difference between a permanent address and a care-of address? Who assigns a care-of address?

Computer Networking: A Top-Down Approach

Wireless and Mobile Networks

Homework Problems and Questions
Foraging bees often move in straight lines away from and toward their hives. Suppose a bee starts at its hive and flies $500 \mathrm{m}$ due east, then flies $400 \mathrm{m}$ west, then $700 \mathrm{m}$ east. How far is the bee from the hive?

Foraging bees often move in straight lines away from and toward their hives. Suppose a bee starts at its hive and flies $500 \mathrm{m}$ due east, then flies $400 \mathrm{m}$ west, then $700 \mathrm{m}$ east. How far is the bee from the hive?

College Physics: A Strategic Approach

A car travels along a straight east-west road. A coordinate system is established on the road, with $x$ increasing to the east. The car ends up 14 mi west of the origin, which is defined as the intersection with Mulberry Road. If the car's displacement was -23 mi, what side of Mulberry Road did the car start on? How far from the intersection was the car at the start?

A car travels along a straight east-west road. A coordinate system is established on the road, with $x$ increasing to the east. The car ends up 14 mi west of the origin, which is defined as the intersection with Mulberry Road. If the car's displacement was -23 mi, what side of Mulberry Road did the car start on? How far from the intersection was the car at the start?

College Physics: A Strategic Approach

Keira starts at position $x=23 \mathrm{m}$ along a coordinate axis. She then undergoes a displacement of $-45 \mathrm{m} .$ What is her final position?

Keira starts at position $x=23 \mathrm{m}$ along a coordinate axis. She then undergoes a displacement of $-45 \mathrm{m} .$ What is her final position?

College Physics: A Strategic Approach

Questions asked

INSTANT ANSWER

6. 8 pts Review the examples of match-plus-action flow table discussed in class, and answer the following questions based on the figure below. Figure 4.30 OpenFlow match-plus-action network with three packet switches, 6 hosts, and an OpenFlow controller 2 Suppose that the desired forwarding behavior for datagrams arriving at \( \mathrm{s} 2 \) is as follows: - Any datagrams arriving on input port 1 from hosts h5 and h6 that are destined to hosts h1 and h2 should be forwarded over port 2; - Any datagrams arriving on input port 2 from hosts h1 and h2 that are destined to hosts h5 and \( \mathrm{h} 6 \) should be forwarded over port 1 ; - Any arriving datagrams on input ports 1 or 2 and are destined to hosts h 3 and h4 should be delivered to the host specified; - Hosts h3 and h4 should be able to send datagrams to each other. Please list the flow table entries in \( \mathrm{s} 2 \) that implement this forwarding behavior.

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INSTANT ANSWER

1) Consider the datagram at step 1, after it has been sent by the host but before it has reached the NATted router. a. What are the source and destination IP addresses for this datagram? b. What are the source and destination port numbers for the TCP segment in this IP datagram? 2) Now consider the datagram at step 2, after it has been transmitted by the NATted router. a. What are the source and destination IP addresses for this datagram? b. What are the source and destination port numbers for the TCP segment in this IP datagram? c. Identify the differences in datagram's IP addresses and port numbers between step 1 and step 2. d. Specify the entry that has been made in the router's NAT table. 3) Now consider the datagram at step 3, just before it is received by the NATted router. a. What are the source and destination IP addresses for this datagram? b. What are the source and destination port numbers for the TCP segment in this IP datagram? 4) Last, consider the datagram at step 4, after it has been transmitted by the NATted router but before it has been received by the host. a. What are the source and destination IP address for this datagram? b. What are the source and destination port numbers for the TCP segment in this IP datagram? c. Identify the differences in datagram's IP addresses and port numbers between step 3 and step 4.

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INSTANT ANSWER

What is an application-layer message? A transport-layer segment? A network-layer datagram? A link-layer frame?

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INSTANT ANSWER

What advantage does a circuit-switched network have over a packet-switched network? What advantages does TDM have over FDM in a circuit-switched network?

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ANSWERED

Kirsty Gledhill verified

Numerade educator

4. You need to show your work in detail to get any credit. Before collision: The red car (on the left) has the velocity of 10.0 m/s and mass of 4.8 kg. The blue car (on the right) has the velocity of -5.6 m/s and mass of 4.4 kg. After elastic collision: The blue car moves with the velocity of 8.8 m/s. (a) What is the initial momentum of the red car? (b) What is the initial momentum of the blue car? (c) What is the total momentum of the system of blue and red car before collision? (d) What is the final momentum of the blue car? (e) What is the impulse on the blue car (in kg.m/s)? (f) Is the system consisting of the blue and red car an isolated system? (g) What is the impulse on the red car (in kg.m/s)? (h) What is the velocity of the red car after the collision? (i) Draw annotated p-t and F-t graphs for both carts at all stages of collision. Assume that collision occurred for 0.5 seconds.

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ANSWERED

Ivan Kochetkov verified

Numerade educator

3. (a) A baseball of mass 0.13 kg, pitched with a speed of 40.0 m/s, returns exactly in the opposite direction with a speed of 41.0 m/s after being hit by the batter. The ball was in contact with the bat for 10.0 ms. What was the maximum force on the ball due to the bat? (b) An impulsive force acts on a 1.7 kg object for 3.4 s as shown in the figure below: The maximum force is 4.5 N. What is the impulse (in kgm/s) due to this force?

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ANSWERED

David Morabito verified

Numerade educator

2. An elevator is moving downward and slowing down at 4 m/s/s. Inside the elevator, a yellow box (10.0 kg) is stacked on top of a gray box (20.0 kg). (a) Draw the FBD to indicate all the forces acting on the Yellow box. Clearly label agent and object of interest on your FBD (e.g. Fby object 1 on Object 2) (b) Draw the FBD to indicate all the forces acting on the Grey box. (c) If a scale is placed between the boxes, what will the scale read? (d) If a scale is underneath both boxes, what will the scale read?

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ANSWERED

Kirsty Gledhill verified

Numerade educator

Lab 8: Take home problems. 1. An object (8 kg) was given a kick at the bottom of an incline (20°) and it started with a velocity of 6 m/s. The coefficient of kinetic friction between the object and the surface is 0.2. (a) Draw following 4 FBDs that show the forces acting on the object as the object slows on the ramp. (i) Actual FBD (ii) FBD with components (iii) y-FBD (iv) x-FBD (b) What is the magnitude of the normal force? (c) What is the magnitude of the frictional force experienced by the object? (d) What is the net force acting on the object as it slides up the ramp? (e) What is the acceleration of the object as it slides up the ramp?

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ANSWERED

Nishant Kumar verified

Numerade educator

5. Find the tensions in the ropes. (Show your work). 91 N and 155 N 105 N and 53 N 180 N and 91 N 180 N and 155 N Find the tension in the two ropes that are holding the 9.1 kg object in place. Rope 1 makes an angle of 59.6° with respect to the vertical. Rope 2 is pulling horizontally. When you are ready to enter your answers, hit the end button. End 9.1 kg Rope 1 Rope 2

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ANSWERED

Nishant Kumar verified

Numerade educator

4. A 10 kg object resting on a rough surface ?s = 0.25, ?k = 0.15 . (a) Draw a FBD diagram showing the forces acting on the body when pushed with the force of 20 N. What are the values of frictional force and net force in this case? Is frictional force static or kinetic? (b) Draw a FBD diagram showing the forces acting on the body when pushed with the force of 40 N. What are the values of frictional force and net force in this case? Is frictional force static or kinetic?

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