Homework Statement
A cat is standing 1m in front of a mirror. a virtual image is formed 10.0m behind the mirror. what is the radius of curvature for the mirror?
Homework Equations
1/f = (1/do)+(1/di)
f=+/-(1/2)*R
The Attempt at a Solution
(1/1m + 1/10m)^-1 = .909
.909*2 = 1.82...
The professor said he didnt know the ans of this qn, so, can u help?
Question: Can you have lim_x->a f '(x) = D , f ' (a) exists, but not equal to D?
any one can give an example? thx!
So I was looking through salary.com statistics and various news articles such as this one http://content.salary.monster.com/articles/salary/highestpay/ and found that physicist salaries far surpass my expectations, since many people claim that physicists, and scientist in general, do not make...
http://video.google.com/videoplay?docid=964034652002408586
Here is a video of Professor Jones of BYUniversity presenting a lecture about the collapse of the WTC buildings. He talks about the stresses on the steel columns imposed by the heat of the fires and how they were not great enough to...
I've always wondered about this question. I've taken university math courses and gotten A+'s. But then years later, if I never used topics in that course again, I realize how much I have forgotten.
A math professor who does research in, say, number theory would essentially never use, say...
Hello everyone. I have the following problem that can be solved using a traingle that looks similar to pascals triangle, but i must have have misunder stood the professors method of finding the next row. I have a final tomarrow and learning this technique would help but he told us on the...
I was just wondering, If my undergrad advisor knew someone at a university that is currently looking for graduate students to help with his research and I talked to him and he liked me and such, but perhaps my test scores were too low, or gpa wasnt 4.0, or something just wasnt in the top 95th...
Here's some questions from a friends homework that we submitted online. I think the answers that the professor marked are wrong. If they are right please explain it to me.
1) A golf ball moving forward with 1 unit of momentum strikes and bounces backward off a heavy bowling ball that is...
I walk into Real Analysis and in the first 3 seconds my thoughts go...
... drop class NOW!
When I first took the course, I was under the impression that the chair of the department would be teaching the course. Unfortunately, the professor from last year Complex Analysis is teaching the...
Hello everyone, today our professor did this homework problem for us, just different numbers. This is the question:
You produce an image of the Sun on a screen, using a thin lens whose focal length is 20.6 cm. What is the diameter of the image? (The mean radius of the Sun is 6.96x10^8 m and...
Hello everyone!
My professor was going over a problem real fast for the exam and now that i went over it again, I'm lost on how he did this last step. He is using a method called Abels Theorum. THe problem says:
Find a second solution of the given differential equation:
t^2y''+3ty' + y = 0...
[SOLVED] I have a crush on my physics professor
He's sooo fine... his grayish blue eyes... his intense stare... his hot body...mmmmm...so sweet... I can't even think when I am in class! How can I get past his hotness?
Hello,
My name is Brian Wingfield and I am a Phisics Professor. To conduct my expiriments, i have been given the windows application, Working Model 2d. I have been given basic training on how to use it but i have run into a small problem. I need to Create a joint that pins 3 layers so 3...
http://www.phys.psu.edu/people/display/index.html?person_id=417
Last year Martin Bojowald was a postdoc at the Albert Einstein Institute (AEI-Golm)
Now he has a faculty appointment at Penn State and this semester (Spring 2006) he will be teaching an advanced course in Gen Rel...
Hello everyone, we found 3 igan values: 1, 2, 3
for the last case: 3
we came out with
0 -1 0
0 -1 0
2 -2 -2
he wrote b = 0, a = c;
then said igan vecotr is:
0
1
1
but clearly shoouldn't it be:
1
0
1
?
Hello everyone, I'm studying an example my professor did, and it isn't making sense to me... here is the orignal matrix:
THe oringal matrix is:
T[s] = [3s-t]
[t]...[2t+7s]
he wants to determine if the following trnasformation is Linear.
Here is what he wrote on the board...
I have always had the idea of becoming a physics professor after I graduate and go to graduate school, but the more I hear about it the more weary I am of this happening. I go to University of Cincinnati which isn't really known for its physics or anything but see that all of the professors went...
I was arguing with him for about 30 minutes in his office and finally convinced him to raise my mid term grade by a (total) of 14%. :biggrin: :smile:
I now have a B
(in any other grading system it'd be an A, but you need 90% to get an A in this class - stupid)
Hello all, I am working on a question as part of an assignment, and while I think I have the correct solution, would just like to check if I have gone about this the right way.
Question: "At the beginning of each term, a physics professor named Dr. Zeus shows the class his expectations of...
either way, you can help! so w=change in KE, and W=the line integral from 0 to s of FdotdS(I never learned how to use the latex thingy, so bear with me, the question isn't that hard...)
So then he wrote KE=lineintegral from 0-S, d/dt(gamma*mv)ds
and then from there you end up with...
So I was at the bar, and all of the sudden this beautiful gorgeous blonde starts snapping her fingers at me and calling my name. Wouldn't you know it, it was my 27 year old psych professor from last semester. I think she was a little bit tipsy cause she kissed me. But you know what they say...
I am currently enrolled in a Diff Eq course at a community college. My instructor has an MS in Math and Electrical engineering which I assumed meant he knew how to think but apparently he doesn't.
The problem is this, we are solving differential equations using the LaPlace Transform for...
Here I'd like to present theories of professor of physico-chemistry, Ph.D. Najip
Valitov from Russia, who discovered new theories after Einstein. Part of his discoveries are described in his web-page:
[PLAIN]www.bashedu.ru/ValitovNKH.htm[/URL]
In 1972 professor Valitov, who lived in the...
A math professor was staying in a hotel before attending a math conference. When he came out of his room, to go to the conference, he found out that the total of room numbers to his left was equal to the total of room numbers to his right. The total numbers of rooms per floor were about 300 and...
Announcement :
Frank Wilczek is giving a talk tonight at the Ohio State University. This will be a great opportunity to attend a not-too-technical talk by a brilliant physicist. So if you happen to be in the Central Ohio region tonight, you might want to come take a look-see...
Hi, just some advice searching here. I'm doing my classes online through this guy from M.I.T. http://ocw.mit.edu/OcwWeb/Physics/8-02Electricity-and-MagnetismSpring2002/VideoLectures/index.htm
Any comments? Anybody here about him? he seems pretty good so far.
Need Help: Looking for college level proffesor or someone "qualified" to interview
Im doing my senior project on Rail Guns and as a requirement I need to interview "qualified" people, asking them questions pertaining to my project. I'm looking for atleast one person to interview, 2 would be...
Ok so I love tutoring math and I am currently a math major at a University in the US. In the past I have tutored college algebra, pre-calculus, trigonometry, calculus 1, 2, 3, differential equations, and even some lower maths(pre-algebra, intermediate algebra, technical mathematics). Currently I...
I am a little terrified at the moment as my Calc 2 teacher both mumbles and has a heavy accent. Anyways this is what caused me the most anxiety about the first class could someone please explain to me wtf he was trying to say by this?
these are two piece-wise functions
F(x)
1 x...
if a physics professor substituted for a 2nd grade class and the student from left to right were like this :smile: :smile: :mad: :approve: :bugeye: :-p :cry: :rolleyes: :biggrin: :confused: :rolleyes: :redface: :wink: :frown: :cool: :eek: :devil: :blushing: :zzz...
Today Israeli soliders murdered in cold blood an American Professor and his son. I am sure if this Professor is not from Palestinian origin, the American media and politician will react strongly, especially if the criminals are link to Arab or Islam...
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"In his Tier III class, Moody uses a variety of evidence, including a Discovery Channel documentary, "Sasquatch: Legend Meets Science," to teach students how to weigh evidence. The movie presents a range of clues for the existence of Bigfoot, including films of purported...
At the end of class today, my Physics II professor asked us this simple question to answer over the weekend. The question: "So many people are interested in mathematics and physics, but why are there so few people getting degrees in these basic sciences?"
I just wanted to hear what kind of...
Hi there!
I'm a first year student and found quite interesting the MIT on-line video lectures on electromagnetism.
http://ocw.mit.edu/OcwWeb/Physics/8...tures/index.htm
In one these lectures given by Dr. Walter Lewin it is explained how all college books and teachers wrogly use...
September 18, 2003
Thinking About Neoconservatism
By Kevin MacDonald
Over the last year, there’s been a torrent of articles on neoconservatism raising (usually implicitly) some vexing issues: Are neoconservatives different from other conservatives? Is neoconservatism a Jewish movement...
Trent University's Problem Professor
By Jonathan Kay
National Post | January 8, 2004
It is a starting point for debate about the Middle East that one can oppose Israeli policies without being anti-Semitic. Jews and Palestinians are locked in a violent, complex dispute. Reasonable people...
According to Professor James H. Fetzer, Ph.D., President Bush shot his new electromagnetic laser at Paul Wellstone's plane, jamming the electronics and causing it to crash. Fetzer says Wellstone was the leading voice of opposition to starting the war against Iraq. Here is the professor's site...