berkeman's latest activity

What textbook are you using in the class?

It's not uncommon for a receptacle to be split. For instance the bottom may be live all the time but the top is controlled by the switch.

Welcome to PF. The key search term you need is "hoop stress". https://en.wikipedia.org/wiki/Cylinder_stress#Hoop_stress

This is only correct if you view ##\Delta L## and ##\Delta B## as fixed numbers. In a setting where you have estimated errors, it is...

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How do you know it is unused? When you pull the plastic faceplate off, do you see any wires going to the switch? (Don't pull the...

I checked my Profile and I have them enabled (not surprising since I'm a Mentor/Admin and need to get notifications about basically...

So, given these new observations posted above (and some related to the details of the window polarization), here's my heavily revised...

Agreed, and that's why it was just a gentle 0-point warning and not an infraction. :smile:

:welcome: Agreed with @berkeman on... well... everything. Definitely post in the Academic advising forums: trust me it's helpful.

Got it, thank you PeroK.

The Academic Advising forum is in the Science Education section of PF: https://www.physicsforums.com/forums/stem-academic-advising.139/...

Welcome to PF. Yes, it is a common feeling for university freshmen. Often it is because high school math and science were easy, and...