drallan

Saginaw Arts & Sciences Academy
SASA

[Acyn @Acyn]

Wow Democrats just laughed at Marjorie Taylor Greene when she asked them to abide by decorum of the House

[Adam Parkhomenko @AdamParkhomenko]

if you watch one thing today make it this

[Sarah Cooper @sarahcpr]

Or we could just… give them the money?

[drallan @dr_chemystery]

@realLizUSA Thank you for tweeting this statement at a public service. #doublenegative

[drallan @dr_chemystery]

@morganchem @bravomedicalhs @BravoHSChemClub @ACSChemClubs Never have tried it, but maybe next year.

[AACT @AACTconnect]

ChemClub is our newest member benefit! Register your high school chemistry club as an official ChemClub to receive support from AACT, such as monthly themed activities, quarterly resource packets, and contests. Register by November 1! #MemberBenefitMonday https://t.co/ns43DOfHj7

[drallan @dr_chemystery]

@atrupar First of all, that table is NOT round. Not a lot of people of color there, either.

[drallan @dr_chemystery]

@chronicleflask Hash browns

[drallan @dr_chemystery]

Nerdy T-shirt for orientation. #nerdytshirt #chemistry

[drallan @dr_chemystery]

@KristinGregory7 You, too? We are in a repurposed Montgomery Ward department store.

[The Nobel Prize @NobelPrize]

On 8 May 1945, Dorothy Crowfoot Hodgkin solved the structure of penicillin after many others had failed. Later, she also managed to determine the structure of vitamin B12 and insulin.

#NobelPrize

Image: Molecular model of penicillin by Hodgkin.

[drallan @dr_chemystery]

Thank you for your excellent video series. I am sure my students are better prepared for next week's exam thanks to you two (and Edna, Bertha, and even Anthony). @JacobsPhysics @MrJBphysics

[drallan @dr_chemystery]

@JacobsPhysics Do you think your practice questions are representative of the difficulty students should anticipate on the real exam?

[drallan @dr_chemystery]

@HannahC111 @MrJBphysics If R/v = constant, that is still a direct relationship. If you increase the numerator, you have to increase the denominator by the same factor to keep their quotient equal to a constant.

[drallan @dr_chemystery]

@anvisha61873800 Momentum is conserved—yes, always in the absence of outside forces. But, gravity accelerates carts down ramp and they arrive at different speeds. The speed of cart #1 is less than 2x the speed of cart #2 (cons. of energy), so cart #2 has greater momentum.

[drallan @dr_chemystery]

@samuely44806660 @bwilliams025 @MrJBphysics @JacobsPhysics When they collide, the total momentum is to the left. The velocity of cart #1 is sqrt(2) * the velocity of cart #2, so cart #2 has greater momentum.

[drallan @dr_chemystery]

@MrJBphysics Good point. Hope I didn't jump the gun and mess things up.
After experiencing the interface as my students will (timed, uploading material), I concur with the advice given: type it and copy/paste or upload a doc. I would panic if taking a pic.

[drallan @dr_chemystery]

@MrJBphysics

[drallan @dr_chemystery]

@juliac_0732 @JacobsPhysics @MrJBphysics The impulse would be due to an external force (doing work on the object and) changing its momentum. If the object has the same mass and speed, it has not lost kinetic energy.

[drallan @dr_chemystery]

@NishthaTyagi5 @MrJBphysics College Board will automatically mail you a new e-ticket if you don't log in on the first test day. If you never log in, your school won't be charged and you can get a refund.