Evaluate ∫-x/(x+1) dx
The Attempt at a Solution
I do a U-sub
-∫[u/u - 1/u] du
-∫1 - 1/u du
-[∫1du - ∫1\u du]
-[u - ln(u) + C]
I combine -1 and C into a single C to get...
Why would you need two rotating parts?
You could just put two opposite facing rockets positioned on opposite sides of the craft. Start em up, wait until the adequate rotational velocity is reached, then shut em off.
I meant 3.0e^8 because final equation involves using 2.2us.
Doesnt that require the answer to be two sig figs?
0.999978c = 2.999934 E8 m/s
Which should be rounded to 3.0 E8m/s (due to the 2.2us)
Actually, I knew the problem was simplified in the half life aspect. :-)
This is the frirst SR problem in his book. I think the question is flawed.
The solution assumes a speed of 3.00 E8 m/s to calculate Δt=333us since it traveled 100km.
Next, 333us and 2.2us is used to solve for velocity using the time dilation formula. Velocity is reported to be .999978c...
This is what my intuition tells me.
This is the quote from Hawking that confused me:
So, the qualifiers are that the stars must be "roughly uniformly" distributed?
It seems strange to not further clarify...especially when he says they will "always collapse."
Can anyone explain this to me?
If we have an infinite amount of balls arranged in a kind of cubic matrix, in an infinite and static space...how the heck would that collapse on itself due to gravity?
I think we are talking about different things.
To help determine the identity of an unknown chemical, we can do an IR analysis. We shine IR radiation through a chemical, and the bonds between atoms will absorb IR radiation at specific wavelengths.
I don't know about atoms giving off IR...
After DNA multiplication in a fertilized cell, the DNA molecules and mass will double....so 2m and 92.
This is referring to S-phase replication, before mitosis.
There might be something tricky about the number of DNA molecules, but I think what I said is correct.
A reserve requirement is a percent of cash a bank must keep in relation to its deposits.
For example, if a guy deposits $100, the bank must keep $12, and can loan out the other $88.
Securities are assets the bank owns, like shares or bonds. They can be sold like anything else to bring in...
I suppose a better way to ask my question is to say :
Would it be "ok" if I were to forgo the electives and other classes required for a physics degree, and take the required mathematics and physics core?
My uni requires:
Cal I-III, and DiffEQ
Physics I and II
Because taking classes for university credit costs me 1000 dollars per class and if it postpones my entry into a graduate program later than it could have been, then I would obviously rather avoid it. I'm not trying to avoid physics. I'm trying to avoid university credit for physics.
I am not looking at physics graduate schools, as I am nowhere near that point. I am looking into the path I need to possibly persue a graduate degree. Ie. what is required for application? What must I do should I choose to persue this?
I WAS looking to go to medical school. That is why I am at...
I am in a strange spot.
My undergraduate degree was in Business Information Systems (non-technical).
I returned to the university 2 years ago to complete prerequisites for medical school. I am finishing in 2 weeks with A grades in all classes since returning. So, my physics exposure has been...
I have been searching for the requirements for entry into physics graduate programs.
I am seeing GRE + physics GRE + 3 LORs
Is it understood that the student has a strong background in physics or mathematics or do they really not require it?
I have signed up for higher mathematics...
Do we have to get technical? :eek: My point was that nobody will care about a 3.9 with no MCAT. A 3.9GPA and 90th percentile MCAT score will in no way "guaranteee" a slot.
Average is 3.7
and a 90th% MCAT is very high, well above the average MCAT of a matriculant.
Are you looking to attend an US medical school?
There are a few, I think, who do not require an MCAT score, although I'm sure it would hinder your application a great deal.
A straight program???? What?
You won't be special with a 3.9 GPA. We all have those. Just take the MCAT like everyone...
m1 = mass of Earth
m2 = mass of apple
r = distance between them
G = gravitational constant
The magnitude of force F will be the same for both objects, only in opposite directions.
Everything is the same.....except mass (ie. inertia)
If the mass of the apple is increased an incredible...