Applied Definition and 1000 Threads

1-kg Block 1 sits on 10-kg Block 2. Friction between the blocks is 0.4 static, 0.3 kinetic while the floor is frictionless. A 4-N force is exerted on Block 1. What is the acceleration of Block 2? I know Block 1 won't move relative to Block 2 since it is canceled out by the frictional force...

Homework Statement There's a diagram in my book but imagine a coil in a square shape attached to a vertical shaft, the diagram for convenience sake represents the coil as one circular wire exactly like a wire actually looks. However, the coil has 410 turns and has an area per turn of 3.1 X...

Homework Statement Two forces of equal magnitude are applied simultaneously on the ends of a bar of length L. In another reference frame, moving with velocity v relative to the bar (with v being parallel to the length L), the forces are not applied at the same time, generating momentum. I...

Homework Statement Hello all, kinda angry at myself for posting this but my brain has hit a brick wall. This is an easy problem too... anyway. A frictioness ramp of mass M and incline θ sits on a frictionless surface. A block of mass m sits on the ramp. What horizontal force F must be applied...

Hi, I am a bit confused about cables, because of multiple people telling me different things. The only times we've discussed cables/springs is when a force is applied parallel to the length of the cable. So say you had a cable tied to 2 fixed ends ------------------ , (great diagram eh) and a...

Homework Statement I attached the infinite series the question provided as a file. Homework Equations The Attempt at a Solution I deduced the general term to be ln(n)/n, so the infinite series would be written as [SIZE="4"]\sum_{n=2}^{\infty} \frac{\ln(n)}{n} I took the...

Hi there, Im looking for a theorem that relies on the axiom of choice, but is used in applied mathematics (economics, physics, biology, whatever). In other words a mathematical theory we use to say something about the real world. This is because I'm wondering if discarding the axiom of...

Homework Statement A box of books weighing 319 N is shoved across the floor by a force of 485 N exerted downward at an angle of 35^degrees below the horizontal. a) If uk between the box and the floor is 0.57, how long does it take to move the box 4.00 m, starting from rest. b) If uk...

Homework Statement attached Homework Equations The Attempt at a Solution The first two were pretty simple, but I'm having trouble grasping why my guess for #3 was actually correct. Why are we ignoring the parallel battery/resistor combo up top and just adding the voltages of the...

I have a heavy bag and I was wondering if I could find out how much force is applied when I kick it. Here's a picture describing of the problem: If some amount of force is applied that causes the bag to move x meters (first swing) in the direction of the force, how much was applied? The...

Imagine a box of mass "M" lying on a surface and attached to a rigid wall too. Assuming that the co-efficient of friction between them(box and surface of ground) is "μ". and I am applying a force of 100 N horizontally on the box. So my question is how mush force is being applied by the wall on...

How does the first law of thermodynamics apply to the Compression And expansion of a gas at constant temperature ? If the gas is at a constant temperature and is being compressed, then ΔQ = 0 ΔU = + W(on the system) = + Are those(^^) correct ? The equation being : ΔU = ΔQ +...

Homework Statement The Attempt at a Solution So I noticed the units of w_0 were in N. In other words to find the moment I would have to integrate 100∫01 x2+1-2x dx. However I ended up with the wrong answer. The correct answer requires that I integrate 100∫01 x2+1-2x x dx...

There is a box of mass m on a wedge of mass M with angle θ (the triangle also has a angle of 90 degrees). I need to find the force applied on the little mass, this is what I got: F=-mgsinθ+Mgsinθ Where the first term refers to the force of gravity applied to the mass m and the second term...

I've heard a lot about the situation for physicists in industry (typical jobs they take, difficulty finding a job, salaries, best subfields to transition into industry, etc.) but how about APPLIED physicists (people who graduated with Phds in Applied Physics from programs such as Cornell or...

Homework Statement Please look at the attached pic. I don't know how to type all these symbols in. Homework Equations Im not sure how to start The Attempt at a Solution I tried using the cyclic rule but the problem just started getting messier.

Consider two cylindrical containers of the same diameter. Fill them with a liquid to different levels. We all know that the liquid can be "siphoned" from one container to the other using a thin hose, which we will consider to be thin and of uniform diameter. Bernoulli's Equation can be...

I have to do some dataacquisition from a car with some accelerometers. 4 accelerometers is placed on the wheels before the shock absorber. And i need to calculate the maximum applied G-force on the accelerometers. Just an approximately value, not taking in account the type of wheel...

Homework Statement Refrigerant 134a enters a heat exchanger operating at steady state as a superheated vapor at 10 bars, 60C, where it is cooled and condensed to saturated liquid at 10 bars. The mass flow rate of the refrigerant is 10 kg/min. A separate stream of air enters the heat exchanger...

Forces applied to occupants in car crash (important for assignment!) Ok so I'm in grade 10 at school and for my physics assignment I'm comparing the forces applied on the vehicle (or occupants) in a collision, where one car has a crumple zone and the other one doesn't. If they were both...

I was just reading an article the other day about the debate in public schools about teaching evolution as an absolute truth as it has been taght for the past umteen years. Not saying that I'm a proponent of creationism or even that I'm not, but there are some serious flaws in teaching it as the...

I'll offer a digest version of my earlier post that appeals to shorter attention spans. I'm considering the pursuit of a graduate degree in statistics. My CV in a nutshell: Math Major: 3.6 GPA (in major) GRE: 159 V / 167 Q Research experience: Summer Institute in Biostatistics (SIBS)...

Homework Statement A car dealer sells a new car for $18,000. He also offers to sell the same car for monthly payments of $375.00 for five years. What monthly rate is this dealer charging?Homework Equations A = [R(1 - (1 + i))^-60] / i where A = the present value, R = the monthly payment, i =...

Hello, I am currently in my final year at a California State University majoring in Mathematics (Applied track) and minoring in computer science. I've begun lurking forums such as the physics to figure out what sort of programs I am qualified to apply for, and what be good opportunities as well...

Hello, First of all i found too much helpful posts at physicsforums to understand many things and basic principles about the majors of Engineering, Physics and mathematics. I got recently B.Sc degree in Electronics and Communication Engineering and that was good now i decided to have a...

I have a very simple and straightforward question. This has been troubling me for quiet a long time now. Can i go for a phd in theoretical physics with a masters in applied physics ? I basically mean to say that: Will applied physics degree create any kind of hindrance for phd in...

A cylinder, open at both ends, laying flat level is to be filled with a substance that will harden as cement.One end has a 90 elbow attached at one end in order to fill cylinder.The cylinder is 25 ft long and 1 ft in diameter.Will gravity alone take the fluid to the very end of the cylinder...

Hello Everyone! I have a question regarding a Quantum problem I am trying to solve in L. Brown's Quantum Field Theory book, Chapter 1, Problem 4.f. Homework Statement I have a question which asks me to compute [p][/n], i.e. the probability that the ground state (n=0) is brought to the...

Greetings. Looking for advice and information concerning the job prospects for a person holding a masters degree in applied mathematics - how good are they, and how much more opportunities would a PHD provide? How many graduates overall continue on to receive their phds? How do private...

Homework Statement if the coefficient of friction between a 30 kg metal block and the floor is 0.16, what force is required to roll this block across the floor at a uniform speed? how much work is done? find : weight of force, normal force, force applied and fricitional forceHomework Equations...

Torque is defined as: τ = rxF this means that the farther from the rotation axis of a body a force is applied, the more it will tend to rotate the body. My question is: Can anybody give me a simple argument that a force applied farther from the rotation axis should be better at...

I am currently seeking for any open internships. So, I decided to Google search what I could find in my area, and I found an engineering internship. Would this apply to me (I'll tell you more...)? Here is the description of the engineering internship (it's very vague): I have not took a...

I'm a biological engineering major who is starting to lean more towards mathematics. More specifically, I'm interested in mathematical modeling and applying these models to biological systems, geosystems, ecology, etc (mainly scientific problems). I will be minoring in math in order to...

What sort of job prospects would I have with a BSc in Physics Engineering or Applied Physics? Are the odds good, or is this field an exceptionally competitive one? Can anyone here tell me what I should expect while studying for this degree and what I should prepare? Any help at all would...

Bioengineering ----> applied math? I'm a biological engineering major, minoring in math. I certainly will be looking at going to graduate school but I'm not yet sure for which field. My goal right now is to keep my options open for both for as long as possible. Lately I have been thinking about...

Applied mathematics vs. "pure" mathematics in high school? I've just started working through "Basic Mathematics" by Serge Lang. It immediately struck me, when I skimmed through the pages, that there is a large emphasize on proving things and manipulating expressions, and very little exercises...

Hello, I've been pursuing a second bachelor's degree part-time for a while now at a Group III school. I just found out, somewhat unexpectedly, that I might be able to transfer to Georgia Tech (a Group I school) with relative ease to complete my degree as a full-time student. GT is...

Hi all, I am an engineer and I would like to take an online master in applied mathematics or physics - I am interested in several subjects in both field, so right now I am open to either choice. To prevent common comments I saw in other post, let me point out I hold a PhD in Aerospace...

1. The problem statement 1kHz is applied to 1000 μF Capacitor, What is its Capacitance? & 1kHz is applied to 10 H inductor, What is its reactance? The Attempt at a Solution using x= -1/ωC = -1/2∏∫C I came up with 159 fF then for question 2 I got using Xl=2∏FL (better seen here...

Hello learned Engineers, Physicists, and people more useful than myself: Thank you in advance for reading. I would like to submit a more educated proposal to a utility company for a method that would allow it to install 500 kilovolt renewable power transmission lines through many residential...

Hi, I'm a little confused about the pressure in the inlet/outlet and the throat of a Venturi tube. Why is the pressure in the inlet/outlet greater than in the throat? I thought that because air is needed to flow into a smaller space so the pressure has to be greater? Pardon me. I've...

Homework Statement velocity changes when force applied perpendicular i can't understand a simple question. can u help me what i know is that speed in short its magnitude does not change when force is applied perpendicular.its direction only changes so does the velocity. what i don't...

Hello all, I've gotten myself in quite a mess and how I might hope to resolve it is...questionable. I'm wondering about your input. Last Fall, I applied to PhD programs in (Applied) Math under the impression that I wanted to strive to become a professor in mathematics. Since accepting one...

Homework Statement A block of mass 50 kg is free to slide on a frictionless inclined plane that makes an angle of 20° with respect to horizontal. A force F is applied as shown in the drawing pulling parallel to the incline. As a result, the block accelerates up the plane at 4 m/s2. known...

This is about the basic thermodynamic cycle of the gas turbine (i.e. Brayton or Joule cycle), consisting of adiabatic compression, heat addition at constant pressure, adiabatic expansion, and heat rejection at constant pressure, and the standard ways of analysing this through Pressure-Volume...

Sometime I read that the helium atoms can be considered as boson, but I don't understand why. I know that its nucleous has a spin of 2 (integer) and that its 2 electrons gives the atom a total spin of 3, an integer. But then why isn't hydrogen considered also as a boson? I think it's considered...

Homework Statement From http://library.thinkquest.org/10796/index.html (#6) g=9.80m/s^2 Homework Equations F=ma F_f=\mu F_N F_N=mg (The site actually states the normal force to be equal to negative mass times gravitational acceleration, but with a negative value for gravitational...

Hi all, What are some cool programming projects that you have done that really helped you learn a different area of computer science / programming? I am SICK OF the tedium in databases and application development. I would like to expand my horizons to areas such as embedded systems, computer...

I understand that if we apply a force on the axis of rotation of a spinning disc, the torque is in a different direction, and the axis is moved in a direction perpendicular to the direction in which the force upon the axis was applied, determined by the right-hand rule. But what if the force...

I have noticed that I love proving things in math. People have told me that proof-based work is more the specialty of the pure mathematician whereas math used for practical purposes is the specialty of the applied mathematician but I cannot imagine this to be so. What I've realized is that I...