Applied Definition and 1000 Threads

This isn't so much homework as it is me having trouble understanding a concept. I'm having trouble understanding resonance the definition in my book is "If the frequency of a periodic force applied to a body is the same as or very near to its natural frequency that body will vibrate with...

I'm a Math and Mechanical Engineering double major who is considering graduate school for Math in the future. If I have always been interested in epidemiology and combining my love of math with my love of engineering, should I get my phd in applied math? Thanks!

...so am I screwed in getting a job? For my programming, I learned Python and C++ very well (they're fun). I loved probability. I'm one semester away from finishing. My Math GPA was a bit over 3, but my overall GPA stinks (around 2.6...I hated humanities and I started as a sociology...

…or must it be of displacement, x? In a shear force, V (or bending moment, M) diagram, isn't it usually the shear force (or bending moment) plotted as a function of displacement, x? When someone asks to "draw the shear force and bending moment diagrams as a function of the applied load...

I'm debating between applied math and economics major. Which has better job prospects?

A force is applied to m1 connected to m2 by a "massless" cord. where m2>m1. the acceleration, a, is a = F/m1+m2 By decomposing the system into A and B where A refers to the tension on m1 upon having the force applied onto m2, the tension TA is to the positive x-direction. However, in...

What are the advantages and disadvantages of both AEM and FEM and which on is easier. I am doing a project and I should use one of these two methods to solve for a truss system. P.S. computer programming shall be used. In the end which method is better for this case?

If I understand Logarithms correctly it is the orders of magnitude? Either exponentially growing or exponentially decaying. I've heard that exponential growth is the same as the growth of cancer cells. But what are some other real life applications/examples of logarithms? Thank You

Hey guys, I'm kinda new here, and I have a bit of a perplexing personal question. I'm a first year engineering student right now, nothing too crazy, just the jr. college level. But the more projects we do, and the more the class progresses, the more I find myself leaning more toward theory and...

A little background about myself: I was admitted as Biochemical engineering major at UCD out of high school. I had no confidence in my mathematical ability at the time, but i applied for engineering because i believed I wouldn't be employable otherwise, which I still believe to this day...

If a positive charge is pushed towards another positive charge then the potential energy of the system increases. When negative charge attracts positive charge why doesn't the system gain potential energy? In both cases force is being applied?

Hello guys! I really need some help here. I will get my BA in mathematics in two months. I want to get a master degree in math online. However, I'm not sure what should I get. Here are three programs I saw. Master in applied mathematics, MA in math, and Ms in math. I'm not quite sure what...

I am currently an undergraduate student at a department of applied mathematics. Its a 4 years (240 ects) program in which I can take lots of physics classes directly from the department of physics of my university as well. The thing is that I start to believe that I like more to do physics...

Homework Statement A net force along the x-axis that has x-component Fx=−12.0N+(0.300N/m2)x2 is applied to a 3.20kg object that is initially at the origin and moving in the -x-direction with a speed of 8.60m/s What is the speed of the object when it reaches the point x = 9.00m ...

To experiment with conservation of linear momentum I did lab where a jet of water is shot at a flat plate and a hemispherical cup. After simplification the final equation for the theoretical force came out to be F_t= \dot{m}V(1-cos \beta) where \dot{m} is the mass flow rate of water and V...

Homework Statement The problem that inspired the upcoming question is: Find the magnitude of the electric field due to an infinite sheet of charge with uniform charge density σ using gauss's law. I have in fact arrived at the character answer σ/2ε...

I am working on a project at my University. It's extra-curricular and not homework related. At the end we will give a report on what we learned during the development. Our team is working on some ideas for a basic robotic climber, that climbs a cable (similar to a seatbelt). What we decided...

If so, please post what you applied for and be sure to let us know when you hear back! I have been lurking on the recent threads like this for 2012 and 2013, and want to better understand what my chances are for this upcoming summer. I applied for the following things: 5 projects through...

Homework Statement A 90 kg box is pushed by a horizontal force F at constant speed up a ramp inclined at 28°, as shown. Determine the magnitude of the applied force. when the ramp is frictionless. when the coefficient of kinetic friction is 0.18. Homework Equations Ff= uk(Fn) The...

I recently graduated with a bachelor's degree in physics and, like many other people, am finding that without going to gradschool I'm not going to find a good job. I'm not really interested in the long academic path of a PhD, I would much rather get a master's and go into industry. At first I...

what is the difference between these two programs? Does applied lean more on being an experimental physicists?

Homework Statement Suppose a wheel with radius R is resting on a non-inclined surface. A torque \tau is applied to the wheel center. In an attempt to prevent wheel from spinning, the ground applies a static friction force to the wheel at the contact point (parallel to the surface), then the...

I'm planning to major in Applied Statistics, which requires me to choose a concentration in either Economics, Science, or Business. I know that Statistics is often applied to Biology (Biostatistics), but what abut Physics? Physics can often yield accuracy up to 100 percent, eliminating the need...

Homework Statement 10kg block on a inclined plane (32degrees) (frictionless) and an applied force 120N horizontally. What is acceleration? Homework Equations Fnet = ma The Attempt at a Solution mgsin32 = 51.9N (from mg) From applied force, in the same plane, we have xcos32=120...

Hi everyone! Thank you clicking on this thread. I am a community college student seeking to transfer by the end of this upcoming spring semester. I plan to major in math; my main goal is to become a high school teacher or community college professor. Only recently did I find out that...

My university offers an Applied Physics major with seven specialties: atmospheric physics, chemical physics, computational physics, geophysics, materials science, physical electronics or physical oceanography. I could also pursue a B.S./M.S. degree in electrical engineering if I choose the...

Homework Statement The temperature at a point (x,y,z) is given by T(x,y,z)=200e^[−x^(2)−y^(2)/4−z^(2)/9], where T is measured in degrees celcius and x,y, and z in meters. Find the rate of change of the temperature at the point (0, -1, -1) in the direction toward the point (-2, 1...

Hey guys, I was just accepted to Kettering University in Michigan for Applied Physics! I really like the school because of its co-op experience, you spend one quarter of the year taking classes, the next in a co-op with a company, and the rotation continues. However, I was wondering how good...

Homework Statement A force of 25 N is applied on the pulley. M1 = 1.5 kg, M2 = 2.5 kg, light frictionless strings and pulley. a) What is the tension in the strings? b) What is the acceleration of the masses? c) What is the minimum Force to apply on the pulley so that M2 comes off the...

Homework Statement A light rigid cylinder of radius 2a is able to rotate freely about its axis, which is horizontal. A particle of mass m is fixed to the cylinder at a distance a from the axis and is initially at rest at its lowest point. A light string is wound on the cylinder, and a steady...

A force is applied to a box that is initially at rest on an inclined surface. The incline is at an angle θ=20.0° above horizontal. The mass is m=36kg and the vertical force is Fapp= 48N. Between the box and the inclined surface the coefficient of static friction, μs=.240 and a coefficient of...

The coefficient of static friction between the crate m1=3.00kg and the incline with θ=35° shown in the figure below is .300. What minimum force F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline? mgsinθ μsmgcosθ f=ma I don't quite get...

Prove the following result for the ito stochastic integral (n>1) ∫_(t_0)^t▒〖W^n dW = 1/(n+1) (W^(n+1) (t)- 〗 W^(n+1) (t_0 ))- n/2 ∫_(t_0)^t▒〖W^(n-1 ) dt〗 Hint: apply ito differentiation rule f(W) = W^(n+1) to express W^n dW via dW^(n+1) and W^(n-1) dt (analogue of integration by parts for...

Hi! This is my first post in this forum, hopefully I will get some guidance :) Long story short, I am pretty much set in doing a double major in Chemistry and Mathematics. The thing is, I'm really having trouble choosing between Applied Maths and Pure Maths major. I have completed my...

I know that if a force is applied off center (as in: not in the center of gravity), one can split them up in an equal force and a moment in/about the center of gravity. But what about a torque applied offcenter? Maybe this image clarifies my problem: So the force will be split op in a...

This is just something I'm wondering, if we apply enough heat to an object, and since the speed of the molecules inside it is directly measured by temperature, will the molecules inside the object move fast enough to reach the escape speed of the planet that it is on? I know that this is the...

Problem Statement: The system consists of a 20-lb disk A, 4lb slender rod BC, and a 1-lb smooth collar C. If the disk rolls without slipping, determine the velocity of the collar at the instant theta=30 degrees. The system is released from rest when theta= 45 degrees. Above I attached a photo...

The radical Smolin thread left me wondering if other similar ideas could not be applied to other areas of Cosmology and even Particle Physics. Every complex system I can think of in our lives, and in nature, forms part of a complex multifaceted control system or process, with various feedback...

This is a thread for complex number problems in applied mathematics. 1. Prove that: 1 + cos x + cos 2x + ...cos (n - 1)x = {1 - cos x + cos (n - 1)x - cos nx} / 2 (1 - cos x) = 1/2 + [{sin (n - 1/2)x}/2sin (x/2)]2. If a = cos x + i sin x, b = cos y + i sin y, c = cos z +...

Hello everyone, I have trouble understanding how to apply the BBP formula, i.e. actually compute the n-th digit of pi. \pi=\sum\frac{1}{16^{k}}(\frac{4}{8k+1}-\frac{2}{8k+4}-\frac{1}{8k+5}-\frac{1}{8k+6}) where the sum uses k from 0 to ∞. I've read a few explanations how to adapt it...

Two independent random variables X and Y has the same uniform distributions in the range [-1..1]. Find the distribution function of Z=X-Y, its mean and variance. =Using change of variables technique seems to be easiest. fX(x) = 1/2 fY(y) =1/2 f = 1/4 ( -1<X<1 , -1<Y<1) Using u =x -y...

Two independent random variables X and Y has the same uniform distributions in the range [-1..1]. Find the distribution function of Z=X-Y, its mean and variance. =Using change of variables technique seems to be easiest. fX(x) = 1/2 fY(y) =1/2 f = 1/4 ( -1<X<1 , -1<Y<1) Using u...

Random variable X is distributed according to Gaussian distribution P(x)= (1/sqrt(2πσ^2) * exp(- (x-μ)^2 / (2σ^2) ) 1. Calculate its first three moments 2. What are the distributions of Y= X+b; Z=σX; W=X^2 P(x)= (1/sqrt(2πσ^2) * exp(- (x-μ)^2 / (2σ^2) ) so 1.1. the moment of first...

[FONT=arial]Find characteristic functions of [FONT=arial]1. The random variable X uniformly distributed on[-1..1] [FONT=arial]2. The random variable Y distributed exponentially (with exponent λ) [FONT=arial]3. The random variable Z=X+Y

Homework Statement Scroll down for pic related Determine the tension in the cable P that will give the 50 kg block a steady accelerationof 2.0 m/s^2 up the incline. Homework Equations Where am I going wrong? The Attempt at a Solution Let Fa=force applied I calculated the...

Hello everyone. I'm majoring in applied math and physics and was considering going for a MS in math and later if I can a PhD in physics. I'm not sure if I should pursue a MS in applied or pure math because I will be getting a BS in applied math. I'm not sure what would be the difference...

Hi all, I am hoping to get some advice re: my career path. I have lurked these threads for a bit and I can see there's quite a bit of wisdom here, but I am hoping to get some particularly tailored to my situation. I am a 2nd year grad student at a top-10 applied math Ph.D. program, but I am...

Greetings Physics formus, I am a high school learner currently in my final year of schooling. I have decided that pursuing a double major in math and computer science would be a good option for my tertiary studies, as, my passion lies in the Mathematical Sciences. However, I have not decided on...

Hello, If I have a shaft that has a section area of .0562 in. sq. and a material yield strength of 60KSI. And I will have the force applied at the top of the shaft pushing down. The shaft will be in a cantilever configuration where the force will be applied .125" from the base of the shaft...

I have completed a bachelor in electrical engineering. Because of my interest in physics I have decided to move to applied physics and I have been accepted for a Master program ''Physical Energy and measurement engineering'' from a prestigious technical university in Europe, of course with some...