Tagg R

From what I understand, neutron stars are formed when a massive star's core collapses, but what does this have to do with galaxies that contain many recently formed stars?

I'm no expert but it seems that if f(x) ∈ O(g(x)) then f(x) ∈ Span(f(x)). I don't feel like that should be true, so can anyone enlighten me? Thanks.

I can play it on my computer using a usb xbox controller

It uses streets that would or do have civilian drivers on them

It lets you use/tune/paint cars like Need for Speed does

~ Police chases are optional.

Thanks for your consideration!

Prob(A) = 1/3

Prob(B) = 1/4

Prob(C) = 1/5

Prob(D) = 1/6

Prob(F) = 1/20

The above represent the probability that a student has of getting that letter grade in any given class. She receives $10 for each A, $5 for each B, $1 for each C, and nothing for a D or F.

What is her expected value for taking five courses in a semester?

ie. what is the size of the set:

W = { 009, 019, 029, 039, 049 , . . . , 090, 091, 092, . . . , 900, 901, 902, . . . , 999 }

It seems like the application of permutations and combinations should do the trick, but I can't think of it. Thanks in advance.

The first two games are played at the home field of team A, the next three games are played at the home field of team B, and the last two games are played at the home field of team A. The series is the best of seven, so not all seven games are guaranteed to be played. Each team has a 3/5 probability of winning at their home field. What is the probability that team A will win the series?

I've tried applying the Bernoulli trial theorem, but can't see how it will fit into this example. Thanks in advance.

Also, the theorem is given as Prob(X) = C(n, k)•p^k•(1-p)^(n-k) where n is the number of trials, k is the number of successes, and p is the probability of a success, and C is the combination function.

If I vote for someone, I give them a sanction to use force on everyone in my society to apply their policies. If I disagree with even one policy that a candidate supports, is it ethical for me to vote for them? If I can't find a candidate who I can 100% agree with, do I have a duty to not vote?

The reason I asked if 'we' should stop voting is because I assume very few people can find a candidate they 100% agree with. It would be swag if we could roll with that assumpt.

Given f(x) and g(f(x)), how do I find g(y)

for example:

f(x) = 3x - 2 and (g o f)(z) = 9z^2 - 9x find g(y).

Thanks!

I have a two dimensional array that I need to fill with data from a .dat file. The .dat file contains its first segment as three columns of numbers and 522 rows. 522 is a global constant named M. The second segment has two columns and 891 rows. 891 is a global constant named N. The first two columns of the first segment are supposed to be in the 2D array called data[M][3] in the main function. The third column of the first segment of the .dat file is to be ignored. The first column of the second segment is supposed to be in a 1D array called color[N]. and the second column of the second segment is supposed to be in a 1D array called vertex[N]. M and N are unsigned ints.

The problem is that when I cout the array values, the're all random (probably junk). Thanks for taking a look :-)

Here's how my function is called in the main:

int main()

{

double data[M][3];

unsigned int vertex[N];

int color[N];

read_dat(data, vertex, color);

.......

Here's my function that's supposed to do it:

void read_dat(double data[M][3], unsigned int vertex[N], int color[N])

{

ifstream infile;

unsigned int i, j, k, p, q;

infile.open("shuttle.dat");

if(infile.fail())

{

cout << "ERROR: input file opening failed." << endl;

exit(1);

}

for(q = 0; q < M; q = q + 3)

{

infile.ignore(); // should get rid of the unnecessary third column

}

for(i = 1; i < M; ++i)

{

for(j = 0; j < 2; ++j)

{

infile >> data[i][j];

}

}

for(k = M + 1; k < M + N; ++k)

{

infile >> vertex[2*k]; // counts all even numbers (1st collumn)

}

for(p = M + 1; p < M + N; ++p)

{

infile >> color[2*p + 1]; // counts all odd numbers (2nd collumn)

}

}

I need to solve for n2, when I know that n1 = 2 and have various wavelengths to plug in. I've tried to solve the equation many different ways, but I keep getting that n2 = 2 no matter what wavelength I plug in.

I'm using the formula 1/(lambda) = R(1/n1^2 - 1/n2^2) where n1 < n2, and using n1 = 2 so

1/(lambda) = R(1/4 - 1/n2^2) and I get the incorrect result that n2 = 2 for any lambda.

Thanks in advance for your help.

Currently, many drugs are illegal for people to purchase and use, yet a lot of people purchase and use illegal drugs. Since there is demand for these goods, yet they are illegal, there are black markets for them. The black markets produce violence, gangs, and crime.

If cocaine, and all substances similar to it, were legalized, what would happen? Would more people chose to use drugs, despite the general knowledge of their adverse effects? Would the violence associated with the black markets go away?

Sum from n = 1 to infinity of tan(1/n)

I think it should be a comparison test, but I can't think of anything to compare it to for any of the comparison tests. Thanks for your help!

Is this argument valid and/or sound? I wrote it myself and I'm looking for feedback, so it's not just some homework assignment...

1. Intentional murder requires a positive action.

2. No positive action is required of the agent to let the train go on its course and kill five men.

C1: Choosing to not pull the lever is not intentional murder.

3. Pulling the lever to switch the trolley's course is to intentionally murder one man.

4. Murder is unethical.

C2: Pulling the lever is unethical.

3. Pulling the lever maximizes hedonic utility.

4. On C1, maximizing hedonic utility is unethical.

5. If maximizing hedonic utility is unethical, then Act Utilitarianism is false.

C3: Act Utilitarianism is false.

A long wire lying along the x-axis carries a current of 1.80A in the +x direction. There is a uniform magnetic field present, given by B=0.003 i + 0.004 j + 0.002 k, where i,j,k are the unit vectors along the cartesian coordinate axes in units of Tesla. Calculate the y-component of the magnetic force acting on a segment of wire of length L = 12.0cm.

I have no experience with 3D equations like this. Thanks for your help.

A single-coil loop of radius r = 5.40 mm, shown below, is formed in the middle of an infinitely long, thin, insulated straight wire carrying the current i = 40.0 milliAmps. The straight wire is horizontal, and the loop is tangent to it, as if it were the cross-section of a ball on a table.

What is the magnitude of the magnetic field at the center of the loop?

Would it be µ0I / 2πr + ∫π0IdL/4πr^2 ? I think I'm having trouble applying the Biot-Savart law. Thanks for your help.

A 9 kg particle carrying a charge of 24 uC enters a uniform 1 T magnetic field at a speed of 82 m/s and with an angle of 64o with respect to the field lines, as shown in the figure. Answer the following questions with 'true' or 'false.'

A) The work done by the field on the particle is zero since the force is normal to the displacement.

B) The x-component of the particle's velocity is unchanged as it passes through the B-Field.

C) The particle follows a helical path.

D) The particle's speed is unchanged as it passes through the B-Field.

E) The force on the particle is in the -z direction.

here's the link to the figure if you want to look at it:

http://i54.tinypic.com/s4vol3.jpg

Several of the Democrats I've recently talked to about politics have been statists. As a libertarian, I try to find points of agreement with people to keep hostility to a minimum. When I said I thought things like ending US military involvement in the middle east and ending drug prohibition were good ideas, they disagreed with me. Two people even disagreed that the federal government should mandate that gay marriage be legal. At first I was surprised, and then I realized that Obama is a Democrat and holds very similar, non-liberal views.

Has anyone else noticed this? I know there are still real liberals like Jared Polis in the party, but they seem to be a dying breed. Is the Democratic party trending toward a new ideological position? Are actual liberals still comfortable affiliating with it?

Please don't try to extract an argument from my question; there is none. It's a real question that has been inspired by my personal observations.

A 12 V lead-acid car battery, engineered for 'up to 500 or more charge/discharge cycles', has a rating of 95.0 A*hr. (It sells for $126.00.) Calculate the total amount of charge that moves through the battery before it needs to be recharged

What is the total electrical energy that the battery can deliver before it needs to be recharged?

Please give the general form of any non-obvious equations you use to solve these questions.

A typical household circuit is capable of carrying 15.0 A of current at 120 V before the circuit breaker will trip. How many 1500 W hair dryers can run off one such circuit?

In the rush to get ready for lecture, a physics professor leaves the hairdryer described in the previous problem running and does not turn it off until he gets home 7.7 hr later. How much will this add, in dollars, to his next electric bill (assume electricity costs $0.078 per kW hr)?

Do I need to know whether a household circuit would be wired in parallel or series?