I feel like crying but I just can’t I can’t feel my emotions I just feel so empty like nothing matters I feel so. alone But enough about me how was ur day
Are u ok

Well I hope you had or have an amazing day
Your beautiful/ handsome and your amazing

Never give up ok

O u can have these points if u want cause I know some of u are ok and need points so u can have them if u want

If u ever need someone to talk to I’m here I’ll try my best to understand and if u feel like no one cares remember I do

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

What precautions should you take to prevent injuries when dealing with heavy loads?

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?