Search found 393 matches

by NS_Tutor_Mathias
Fri Jan 24, 2020 3:43 pm
Forum: Post your questions here about Next Step's MCAT books
Topic: Psych
Replies: 2
Views: 5

Re: Psych

The answer key states that damage to the right PFC, not the temporal lobe, is the most likely cause of poor visuospatial performance. This is the same structure that inhibits impulsive behavior. Perhaps you just misread the key ?
by NS_Tutor_Mathias
Fri Jan 24, 2020 3:37 pm
Forum: AAMC Resources
Topic: AAMC Sample Chem/Phys Questions-Pt-1
Replies: 1
Views: 9

Re: AAMC Sample Chem/Phys Questions-Pt-1

2. No, not really. This might be true for a carbide, but that seems like an edge case far beyond MCAT relevancy. I want to commend you though, this is a really good question conceptually, and the only reason it doesn't turn out the way you would expect (since we are after all talking about 4 differe...
by NS_Tutor_Mathias
Thu Jan 23, 2020 8:44 pm
Forum: Post your questions here about any videos in the class
Topic: Doppler: the v vector being perpendicular to the road
Replies: 3
Views: 49

Re: Doppler: the v vector being perpendicular to the road

That is just a decomposition of the approach vector using trigonometry. Since the ambulance is not approaching you directly, but driving past, it's velocity vector has a component approaching you and a component perpendicular to you. Only the component approaching you contributes to the Doppler effe...
by NS_Tutor_Mathias
Thu Jan 23, 2020 7:20 pm
Forum: Post Questions About Exams and QBank
Topic: FL 5: section B/B question 38
Replies: 3
Views: 30

Re: FL 5: section B/B question 38

Ah, it sounds like you may have glossed over the question a bit: As described in the passage, the kidney’s response to alcohol consumption is most similar to its response to: So this is saying that the kidney responds to alcohol intake by increasing urine production (by decreasing water reabsorption...
by NS_Tutor_Mathias
Thu Jan 23, 2020 4:11 pm
Forum: Post your questions here about any videos in the class
Topic: Stereocenter vs stereoisomers vs chirality
Replies: 7
Views: 25

Re: Stereocenter vs stereoisomers vs chirality

If you have this problem in the future: The easiest thing to do to avoid these problems is to right click on the link, select 'save as' and open the *.png file directly in any other viewer after downloading.

In the meantime, I've added a copy with transparency explicitly removed.
by NS_Tutor_Mathias
Thu Jan 23, 2020 3:21 pm
Forum: Post your questions here about Next Step's MCAT books
Topic: Discrete Science QBook, Physics #1545, pg. 256
Replies: 1
Views: 6

Re: Discrete Science QBook, Physics #1545, pg. 256

It will not be "sent into" that loop once the capacitor is fully charged, although that phrasing is a bit dangerous (DC current simply cannot flow in this case). However, what the question is saying is that under situation 1 (uncharged), equivalent resistance of the circuit is: 1/rtotal=1/R1+1/R1=2/...
by NS_Tutor_Mathias
Thu Jan 23, 2020 1:23 pm
Forum: Post Questions About Exams and QBank
Topic: FL 5: section B/B question 54
Replies: 1
Views: 14

Re: FL 5: section B/B question 54

Looking at this question there will be a few different things to talk about. Answering it doesn't require an understanding of Sanger sequencing at all, besides knowing that it produces a simple readout of the nucleotide sequence. The main content to review here would be restriction enzyme digests, a...
by NS_Tutor_Mathias
Thu Jan 23, 2020 1:25 am
Forum: Post your questions here about any videos in the class
Topic: Stereocenter vs stereoisomers vs chirality
Replies: 7
Views: 25

Re: Stereocenter vs stereoisomers vs chirality

You are right that it is clunky, but it is totally fair to use what you know about homology and that all physiological AAs are L-enantiomers (provided they are chiral at all) to answer this. I've attached an image that explains the D/L system visually pretty intuitively. Use that, and go ahead and t...
by NS_Tutor_Mathias
Thu Jan 23, 2020 1:11 am
Forum: Post your questions here about any videos in the class
Topic: spectroscopy quiz: on aromaticity (huckel's rule)
Replies: 8
Views: 53

Re: spectroscopy quiz: on aromaticity (huckel's rule)

1) You can only either contribute what is in an existing pi bond OR a lone pair, not both. 2) Your notes are correct. I have been dancing around stating this outright a bit: An sp3 atom with a free lone pair can instead hybridize to sp2, in which case it will again have a free p orbital. This is why...
by NS_Tutor_Mathias
Thu Jan 23, 2020 12:59 am
Forum: Post your questions here about any videos in the class
Topic: Ideal gas Law video: the required conditions to be ideal?
Replies: 6
Views: 62

Re: Ideal gas Law video: the required conditions to be ideal?

Bingo! That is absolutely right. THese are the 2 separate conditions for the ideal gas law to work and it DOESN'T mean that high temperature leads to high pressure because for the temperature to be high, we hold everything else constant and for the pressure to be low, we hold everything else constan...