Urgent Definition and 367 Threads

For one of my semester finals, my teacher wanted us to write a paper on the New Deal. He did not specify any sort of topic except to be very analytical. We were required to read several texts and incorporate it into our writing. the first text is FDR's speech in October 31, 1936 in Madison...

Urgent help! Vector Calculus question... Let S be the surface given by the graph z = 4 - x2 - y2 above the xy-plane (that it is, where z \geq 0) with downward pointing normal, and let F (x,y,z) = xcosz i - ycosz j + (x2 + y2 ) k Compute \oint\ointsF dS. (F has a downward pointing normal)...

Homework Statement I was trying to apply the formula of bridge Homework Equations V_{o} = (\frac{1}{1+R4/R2})-(\frac{1}{1+R3/R1}) The Attempt at a Solution File is attached...Small numbers with resistor names are their values in ohms... the answer I get is 6v...Here it is 1.5 v...

Urgent: 1. let p be prime form 4k+3 and let a be an integer. Prove that a has order p-1 in the group U(\frac{\texbb{Z}}{p\texbb{Z}}) iff -a has order \frac{(p-1)}{2} 2. let p be odd prime explain why: 2*4*...*(p-1)\equiv (2-p)(4-p)*...*(p-1-p)\equiv(-1)^{(p-1)/2}*1*3*...*(p-2) mod p. 3. Using...

Homework Statement Find the equivalent resistance between the two terminals :- Homework Equations Totally confused. The Attempt at a Solution Totally confused here as well...

I am required to use getline() and sscanf() somewhere in my function to read standard input and store it into arrays. I have input like this: 10/10/08 12:00 A1:2.31:1:P 2B:1.98:2:g 2b:1.82:3:b the first line is the time, which i used strcpy to copy it to an array called time[] the...

Homework Statement FIND THE DERIVATIVES OF THE FOLLOWING FUNCTION: CUBEROOT OF ((x^3+1)/(x^3-1)) Homework Equations The Attempt at a Solution

http://img222.imageshack.us/img222/8623/69793936pc8.jpg http://g.imageshack.us/img222/69793936pc8.jpg/1/ Please Help some1?? To be honest I don't what to do...

How much work does an elevator motor do to lift a 500 kg elevator a height of 50 m? attempt: W = F.S.Cos90 = 0 J but i think its not right... Please help some1?

Urgent!HELP!A problem on 2D kinematics Homework Statement A flock of Canada geese directly fly above Kingston is flying due north at a speed of 25km/hr. A second flock directly above Gananoque, 30km to the east of Kingston, is flying in a northwesterly direction at the same speed. Assume...

Hey everyone. I'm finishing up a lab and a question has me stumped. I need to determine the products if NH4Cl + H2SO4 I THINK it's going to be H2O + SO2 + some kind of salt, but I'm not sure. Any help would be appreciated :) Thank you

Force Problem (urgent) http://maxupload.com Attempt: Y: Fnet = 0 n - wcos40 = 0 n = wcos40 X: Fnet = ma 1N + wsin40 -Fk = ma 1N + wsin40 -(.2)(wcos40) = ma 1N + 1.29 - .306 = .2a a = 9.9 m/s2 I am doing it right way. I asked b/c i feel something is...

Homework Statement An owl accidentally drops a mouse it was carrying while flying horizontally at a speed of 5 m/s. The mouse drops to the ground 10m below. What is the mouse's impact velocity? Give the answer as a magnitude and clearly defined angle. As of right now I'm not even sure how...

Any one Solution will be appreciated , just solve as soon as possible! 1) Fourier Series 2) Heat Equation

I have just done an experiment with a glider on an air track and applied a force to it. Its velocity increased very slightly and was wondering are there any reasons, other than friction, why the velocity could change during motion? Thanks I thought this but i don't know if its right "There...

sorry for disturbing but holiday is coming Did you see any new monumental book like "cosmology is forever" or "the reactor started humming" or "the day after e.t" and so on? Thanks.

[SOLVED] Urgent help needed with complex numbers Homework Statement a complex no. z is represented by the point T in an Argand diagram. z=\frac{1}{3+it} where t is a variable show that z+z*=6ZZ* and that as t varies,T lies on a circle, and state its centre Homework Equations...

Homework Statement Given that log_{2}x = p a) Find log_{2}8x^{2} in terms of p The Attempt at a Solution take the power outside the log 2log_{2}8x but i can't see what to do next Any suggestions Thanks :)

Hi guys, I'm being asked to do a mini-project...Basically, i get a code in JAVA and "edit". Editting can be improving the interface, adding exception handling or adding features and so...I chose Sudodu as my topic..after much searching I found this code but I'm out of ideas, what can be improved...

Hello... If an object weighs 4500kg and travels @ 5kph (138cm/s) then stops in 15cm: what is Gforce? Decceleration? Also, if object was stopped via a collision and if contact face is 100cmx15cm then what is impact force kg/sq.cm? This information is really important to me for a...

OK, this is driving me nuts. I am learning how to use the calculator, and I can make perfect graphs for any function for x using the Y= Editor For ex. f(x)=y="function" But how do I make a a function for y? ex. f(y)=x="function" I jus spent an hour reading the manual and TI-89Titanium for...

Homework Statement Use work and energy to solve the following. A .1 kg ball is placed against a massless spring that has a stretch constant 50,000 N/m and is compressed 2 m. The spring fires the ball straight up. a) How far did the ball rise assuming no friction? b) The ball's actual rise was...

Homework Statement A fully loaded Cessna-182 airplane of mass 1290kg has an engine failure when flying with an airspeed of 139 km/h at an altitude of 2710 m on a calm day. it then glides at a constant glide angle(which is the direction of flight below the horizontal) towards a safe landing at...

Urgent Magnetic Field Problem! Urgent!please Help! 1. Homework Statement a) What is the direction of the net magnetic filed at P due to the currents? b) Determine the magnitude of the net magnetic field at P due to the currents. A charged particle at point P that is instantaneously...

Ok i have a few here that i have no idea what to do b]1. Homework Statement [/b] Find the nth term in the series 1/2, 1/3, 2/9, 4/27, 8/81, 16/243 also \Sigma (-1)^n-1/ 5n+1 find the sum Urgent help neededdd ahha.. Thanks

Urgent Physics Question++++! Can someone please help me answer these questions for physics? I need them urgently for an assignment that is due tomorrow. 1.) A person is trying to judge if a picture (mass = 1.10kg) is properly positioned by pressing it against a wall. The pressing force is...

Simple moments ! Can't do ! Urgent Homework Statement Determine the reactions at the smooth collar A, the rocker B and the shortlink CD. Homework Equations RC = Normal reaction at smooth collar A. RN = Normal reaction at rocker B. RD = Normal reaction at D. Moment at rocker B is...

Homework Statement 1. An automobile has a mass of 800 kg and is considered that the efficiency is 14%. (This is 14% of the energy in the fuel is delivered to the wheels). Find the quantity of gasoline used to accelerate the car from rest to 60 miles/h. Note: In this problem, one gallon of...

These were review problems for the test I have tomorrow. My teacher was not present the day these were given, so I could not ask him for help. The answers were given for these problems, but in terms of getting to these answers, I am totally lost. Can someone please explain to me how to...

Homework Statement ok, so i am writing my lab report which is due in tomorrow and the theory says that the graph of relative irradiance versus cos^{2}θ should be linear, the lab script has told me that i should expect the plot to deviated from the expected linear shape, so i have this...

Very Urgent: Need Help With Buffers! I have a test coming up on Tuesday and I have no idea how to do buffers, I don't understand what Value of the Ka we are suppose to use from the chart. I get the equation a little bit: [H+]= Ka x moles HB/moles of B- I am very lost please help!

I have Windows Internet Explorer, the version that has tabs like Firefox, but it has brioke, and this is a major problem, since it is the only computer I have that runs Mastering Physics. When I load up it starts up with a white screen. The address tab is at the top, but the status bar/tool...

[SOLVED] Really Simple Error Somewhere - Please Help - Urgent Homework Statement find gcd(63,45) Homework Equations The Attempt at a Solution gcd(63,45)=gcd(45,18) gcd(45,18)=gcd(18,9) gcd(18,9)= 2 which is wrong! should'nt it be 3?

Urgent...test In 58 Minutes! Homework Statement I am having a hard time figuring out how to calculate the current in a circuit consisting of 2 batteries and numerous resistors. Unfortunautely the problem I am trying to do is in my book so I can't post a picture. But if someone can give me a...

Hi Homework Statement I have been on some statistics and I am not sure that I am on the right track Given two meassurement zones of radioactive vast: \left(\begin{array}{cc} zone 1 & zone 2 \\ 55 & 55 \\ 44 & 24 \\ 47 & 57 \\ 61 & 37 \\ 15 & 51 \\ 36 & 33 \\ 29 & 39 \\ 69 & 11 \\ 8 & 42 \\...

Please can someone help me with the following question: Calculate the volume of ammonia required, in cubic metres at stp, to produce one tonne of ammonium nitrate. I know how to work out the mass of ammonia in one tonne of ammonium nitrate but am struggling with volumes...help needed!

Help in work URGENT! A 2.6−kW toaster takes roughly 4 minutes to heat four slices of bread. Find the cost of operating the toaster once per day for 1 month (30 days). Assume energy costs 11 cents/kWh. so we can find work done by integrating..thts all i knoe..and then we multiply by 30 and...

HI all, I am interested in designing a tapered bearing. Can anyone please let me know the parameters to be considered in order to design. I have been given a load acting on the sleeve, and the arae available to fit the bearing. If any useful site which talks about bearing and its...

Homework Statement f(x)=\left\{\begin{array}{cc}e^{-x^{-2}},& \mbox{ if } x!=0 \\ 0, \mbox{ if } x=0 \end{array}\right Prove the smoothness of f(x) - as in - prove it has infinite derivatives. I was asked this question in a calculas class i have in university...It just so happens to be...

For the integral from sqrt(2) to 2 of 1 over x*sqrt(t^(2) - 1) dx I noticed that this was just the arcsece, so I got arcsec(x) for the answer, but how would I evaluated this at 2 and sqrt(2)? What did i do wrong? Thank you!

I don't know if this is the right place to post such a question, but I saw a couple of other similar questions, so I figured I would give it a shot. My problem has to do with a calibration curve. My lab partner and I just did an analysis using UV-Vis on caffeine. We constructued a...

Okay i know that L = Iw and L = r x p I can use equation of motion to find W.and I=wrp2 but how will that get me to the answer? i have tried everything and the answer i get everytime is 12 or 18.. Both of them are not one of the choices. I have a test tonight and have to go to work right...

is love biochemical? Urgent help please i was just wondering if someone could please help me i have an exam tm and was wondering if you could please give me some ideas on what to write about the question is love biochemical?? what does this mean?? thankyou

Homework Statement A sled and rider with a combined mass of 55 kg are at the top of a hill a height of 20 m above the level ground below. The sled is given a push providing an initial kinetic energy at the top of the hill of 1950 J. (c) If friction can be ignored, what will be the...

Homework Statement I am trying to work out if there is an elegant way to do a line of best fit(straight) through a set of points (3) while taking into consideration their error bars? Clearly I'm looking for a piece of software that can do this. Obviously excel, etc can do a standard straight...

Someone actually posted this exact problem 4 months ago, but here it is. There wasn't an answer. Homework Statement Heron of Alexandria invented the steam jet engine in the first century A.D. One of his many inventions, the one shown below was invented for amusement but employs many...

Urgent help! Young modulus how to hold masses In a young modulus experiment Ieed to holdp the msss i decdied to use hole puncher at both ends I relsiedthis woodnt work becaue strech properly I culd use bull dogclips but masses may make it fall off Wha do u nomally use in a young modulus...

Homework Statement I have to calculate disctance that body(for example a jumper) that jumps of a slope at 45 degrees with initial speed of 20 m/s and under 15 degrees. Homework Equations x=Vox * t y=Voy*t - 1/2*g*t*t y=ax + b, b=0 => y=ax - The Attempt at a Solution I don't know where to...

Homework Statement Prove that if f(x) is both odd and even (functions) then f(x) must be the constant function 0. Basically prove that no other function other than 0, can be both odd and even.

Here is a pic of the graph: Can someone explain to me what each of the four segments represents (not shown but assume there is a horizontal line at 0 for the first few seconds)? I am especially confused about the third segment where it suddenly drops from the peak. Then, please answer and...