Engineering, 08.04.2021 03:50 jinjuwdjesus
Question 13
Object "m" is suspended by a string (string 1) connected to the ceiling. String 2 connects "m1" to another object "m2" below it. Each object has a mass of 20kg.
a. Sketch the objects showing the masses and strings.
b. Draw the Free Body Diagram for each mass, and label each force.
c. Are either (or both) masses in equilibrium? Why?
d. What is the tension in string 2 Show your work.
What is the tension in string 1 Show your work.
f. Which tension is greater and why?
Answers: 3
Engineering, 04.07.2019 18:10, niicoleassssssf
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10, abdirahmansoloman
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, anna22684
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10, demarcuswiseman
Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.
Answers: 3
Question 13
Object "m" is suspended by a string (string 1) connected to the ceiling. String 2 conne...
History, 09.09.2020 14:01
Mathematics, 09.09.2020 14:01
English, 09.09.2020 14:01