Traceroute program is used to find the network paths and round-trip delays between source host and destination host. Open your command prompt running on a Linux system and run the traceroute program at command prompt using the following command:
traceroute < destination – host address>
Example: traceroute www. cs. test. uni. edu
The output of traceroute program contains 6 columns.
1st column: the number of router along the path or route
2nd column: name of the router
3rd column: IP address of the router
4th column: round-trip delay (1st experiment)
5th column: round-trip delay (2nd experiment)
6th column: round-trip delay (3rd experiment)

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

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?