Engineering, 13.01.2020 21:31 royal6032
Suppose there are 3 routers in sequence between host a and host b, all of which use store-and-forward routing. what is the total end-to-end delay for a packet originating from host a with destination host b, under the following conditions. each of the link transmission rates are 2.1 mbps the total distance from host a to host b along its path of transmission is 130.4 km the speed of propagation through the transmission medium is is 2.5 x 108 m/s the packet size is 3 kib remember that you must also uplink from host a to the first router. give answer in milliseconds, rounded to 1 decimal place, without units (e. g. for 0.12345 seconds you would enter "123.5" without the quotes).
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Engineering, 04.07.2019 12:10
On a average work day more than work place firs are reorted
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Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
Engineering, 04.07.2019 19:10
An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling
Answers: 2
Suppose there are 3 routers in sequence between host a and host b, all of which use store-and-forwar...
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