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Why does a 45 degree y-piece fitting result in a greater pressure drop than a 45 degree smooth bend?
In a piping system, what added resistance is in a 45 degree y-piece that isn't in a 45 degree bend? Why is the pressure drop over a y-piece greater?
1 AnswerEngineering10 years agoWhat are the reasons for the freefall method being an inaccurate measurement of gravity?
I achieved an inaccurate value for the acceleration due to gravity using the freefall method, but the actual experiment was quite accurate (electronic timing etc)... Are there any other reasons for freefall being quite an inaccurate method? Thanks.
2 AnswersPhysics1 decade agoWhat is the theory behind the compound pendulum? And why must it be released at a small angle ( 10 degrees)?
Also what reason is there for having a massless string for the simple pendulum?
4 AnswersPhysics1 decade ago