Applied Definition and 1000 Threads

I was reading through my College Physics text, and it talked about how NASA once swung a 20km long conductor through the Earth's magnetic field and setup a 3500V potential difference along the wire. I understand that there's no conventional current in that wire, it's not a circuit. But for a...

Took a graduate level mathematical methods for physics course and came out the other side feeling a bit lacking in solving stuff like the heat equation, wave equation, laplaces equation and so on. I'm still unsure of the Green's Function method for them, how to look at them with Fourier series...

Homework Statement Another question regarding pool. I need to know how much force applied is given from the cue to the ball as well as force of friction OF CUE: a=56.55m/s2 vi=0m/s vf=3.28m/s d=.0953m m=.55kg BALL: m=.17kg *not sure whether to use distance traveled during contact or of the...

Hello everyone, as those of you who have helped with my other threads know I'm currently a high school student and an aspiring physicist. I'd like to start out my post by saying that I completely understand that I am very early to be thinking this far ahead, especially when I haven't experienced...

Homework Statement You apply 14,500 J of work to one end of a crowbar. If the crowbar is 1.2 m long, how much work is produced by the crowbar? (friction is not a factor) Homework Equations Work=distance*force The Attempt at a Solution There's hardly any information in this question so the...

1. Homework Statement h = 17.2 cm A = 12.32cm2 E = 410 MPA Fapp = 6130 N 2. Homework Equations Stress σ = F/A where F is force applied and A is cross sectional area of side where force is applied Strain ε = ΔL/L where L is the length of the bar and ΔL is the change of length of bar Young's...

Take the case of Atwood machine, Where the masses of blocks are m and m,now,another ball of mass m strikes one of the blocks with a speed v and sticks to it. Considering our system as blocks+ball+string connecting the blocks(no pulley),can we apply conservation of momentum? Please explain...

I am in differential equations and I really wanted to go into applied math but this is the first math class I have taken that I detest. I really enjoyed calculus 1-3 and linear algebra especially which made me want to pursue applied math but differential equations is just not appealing to me at...

I am having trouble with the notion that pressure is applied to all sides uniformly. It seems to contradict with my understanding of why there is a pressure gradient in the atmosphere. The way I understood it, the reason you experience more pressure at lower altitudes, is because the parcel of...

Hello everyone. Currently I am studying for BSc. Physics in Leipzig, Germany and serious considering to change into some other fields for master. Now I am considering three possibilities: Master of engineering, computer science or applied mathematics. I have searched quite many information...

I am trying to explain why a small object falling from a short distance on another object does not have the same impact as a bigger object falling from the same height on another object by using Newton's 2nd Law but I get stuck all the time. Can somebody please help me?

Homework Statement A force of (4,-2,7) is applied to an object lying in the x-z plane that angles 32 degrees above the positive x-axis. Find the work done by this force over 3.0 meters of motion. My confusion is due to the solution my textbook gives. It says the displacement is in the x-y...

Hi all! I am a junior at a University of California going for a major in Applied Math and a minor in Computer Science. So far I have been a TA/Discussion Leader for Calculus for a year, and I've done a presentation at a math conference for community colleges about a school-implemented study...

1. A force is applied to an atom. What can be measured to determine the atom's mass? Explain your answer.2. No equations since this is a no-science physics course.3. I don't understand how part 1 is relating to part 2 of the question. As far as I know a spectrometer is used to determine an...

I am a first year student and i am required to build one thing based on one physics law . if i build a rubber band powered airplane , what laws should i say it applies? and what about rubber band powered car??

I'm graduating this year with a B.S in Computational Physics (the difference is the second semester upper division physics courses aren't required, and are replaced with a year of numerical analysis and a CS minor. But I took the 2nd semester physics back when I was a physics major anyways) and...

The more I'm in my chemistry class, the more I feel like this is true. I'm doing all these calculations, plugging in all the appropriate values for numbers and what-not, and this has crossed my mind many times. I'm just cancelling and rearranging numbers out, in addition to units, now. I'm not...

Homework Statement A force of 5N is being applied to a 5kg block is on a table. The μk = .1. What is the velocity of the block?Homework Equations (μk)(Fn) = Ff The Attempt at a Solution (.1)(50N) = 5N of friction. The net force is 5N - 5N = 0NFrom here, I believe it is impossible to find...

Hello Physics Forums community, I'm looking for opinions, advice, really anything, to help me better understand what I'm going into and what may be better for me after gradation. I am posting this under academic guidance because these are decisions that I need to make while I am in college. This...

Hi, I'm wondering what's going on when a friction force of a surface is applied to a moving block as the block slows down to zero and it, the friction force, is the only horizontal force applied. Does the friction force continue at a constant value until the last moment and just drop to 0N or...

I have applied for a degree in TPAM, theoretical physics and applied maths at Birmingham. I just want confirmation: This degree is filled with a lot of maths similar to that found in the Further Pure syllabus of A-level, correct? I have seen third year notes from someone who took the same degree...

I am currently considering either a BSc (Applied Math and Computer Science) or BSc(Computing) at a distance learning university called UNISA. From what I can see the former is the one I think would be best as it has the best math courses between the two(Computing only has Linear...

Homework Statement 1) A block lies on a horizontal friction-less surface. A horizontal force of 100 N is applied to the block giving rise to an acceleration of 3m/s^2. (a) Determine the mass of the block. b)Calculate the distance the block will travel if the force is applied for 10s...

Which MSc course below do you think would be better to have upon graduation, in terms of being able to obtain employment in some area of science or research, or perhaps engineering? Both are at the same university. MSc Materials Science. This is an online course (no lectures), though a...

i want to study applied mathematics on my own, but i don't know where to start

Homework Statement A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 24-g spheres at the ends. When charged, nearly all the charge resides on the ends of the spheres. (See diagram attached) If the wires each make a 26° angle with the vertical, what total charge Q...

Homework Statement - A well insulated rigid steel tank contains water (only) - A resistance heating element (240V, 3.67Amp) designed to heat the water as well as inlet and outlet valves for - the water. - At state-1, the water is in a saturated liquid-vapor mixture state at P(abs)=100kPa...

Hello, can an applied physics graduate be able to be a theoretical physicist? Our school only offers applied physics major in instrumentation but they do send students to do interns/ojt (on the job training) to CERN and various universities all over the world. I know applied physics is more...

[[Moderators note: several similar threads have been merged]] I want to work in the aerospace Industry as someone important and successful, like the administrator of NASA. As I'm 15 years old I'm thinking about my future careers and after a long while, I know that I want to study more than 1...

I'm 15 years old and very good at solving hard logic problems. I know a little bit about college mathematics and physics, so I want to write papers. After thinking a lot I think Applied Physics is a relative new area that has a lot opportunities, so I want to do research in it. What should I do...

Hello, The equation is from a chemistry calculation; the textbook claims that the function is monotonic, without specifying whether it is monotonically increasing or decreasing. Depending on the starting conditions, the function can look different; I basically want to know if the following is...

Homework Statement A pointlike body of mass ##m=100## ##g## is attached to the extremity of an ideal spring, whose constant is ##K## and its length at relaxed position is negligible. The other extremity of the spring is attached to the fixed point ##O##. At first the body mass, on which the...

I am new to this, and not understanding discrete math very well. This is one of my week 4 discussion questions. If someone could help me apply this to a life situation so I could understand this question better, please? I am a CNC Mill machinist, and I understand programming a computerized...

Hi all, I'm going into my third year of university and up until this point I have been studying a little of everything in physics(my degree is a bachelors in Physics), for my third year however we have to select a stream of physics to focus on and I am stuck between Theoretical and Applied...

I take a spring and expend work to compress it with my fingers thereby increasing the potential energy of the spring. After it is at its final compressed state, am I doing work?

Homework Statement Can the equation E = pc be applied to particles? Why or why not?Homework EquationsThe Attempt at a Solution It can be applied to particles that DONT have a rest mass (photons, which are particles). It can not be applied to particles that have a rest mass (almost everything).

Hi, Does "calculus based physics" just mean the study of the phenomenon that displays calculus activity? I read a book recently by Heisenberg that confused me on this. He said our measurements of phenomenon are irreversible. Are scientists deriving mathematical activity from the world, or...

Hey all, I'm at a bit of a major crossroads between studying Physics or Engineering. There are two major milestones in my life that I want to achieve, or die trying: a) Own and operate a consumer electronics company (definitely computers) and b) If astronaut and space based programs begin...

Hello, I've been assigned two calculus problems and have completed both of them. I'm pretty sure the first one is correct but I'm iffy on the second one. I would really appreciate it someone here could check my work on the second problem, and maybe even on the first problem if they have the...

Homework Statement Three boxes are in contact with each other on a frictionless horizontal surface as shown. The masses of the boxes are m1 = 10 kg, m2 = 20 kg, and m3 = 30 kg. A horizontal force F = 90 N is applied to m1. Calculate: a. the acceleration of the three boxes. b. the net force on...

I am currently studying in msc applied physics ..now from here I want to make my career as j.r.f or r.a. in institute like d.r.d.o , prl ahmedabad. If I clear the exam like ugc net jrf then does it mean that I am equally eligible for certain post as compared to pure physics students in real life...

Hello PF. I'm currently tackling a problem at work that I could use some input on. I am trying to gather data regarding the force applied by a swelling material against the ID of a pipe. The purpose is to determine how the force increases with swell before leveling off, as well as to see how...

for an electron, randomly moving inside a conductor , having applied an external electric field we have those electrons moving with a net speed called drift speed , against the direction of field. so initially as electrons are moving randomly we consider their initial velocity o and after time t...

I have a question. Suppose a man is lifting a Mass. The mass of course pushes it down. Now what is the force the mass is applying to hand of man is it Weight or Force of gravity because weight acts on mass itself. Then what we call it precisely?

I understand the right hand rule and the equition, but why is the direction of the torque perpendicular to the force on the counter clockwise side of the force and crossing the rotational point?

I am studying an honours course in Physics, I love physics and yet I also have my heart set for making new things using what I've learned in physics (I have no interest is academic positions however, research does interest me). which post-grad will be best for that? Applied Physics? or Msc and...

Hi, I have a question regarding the forces applied on an object that create the torque. I understand that the resulting torque is pos if the object turns counter clock wise and is neg if it turns clock wise and that you can also use the right hand rule to find the direction of the net torque...

I'm having a bit of trouble wrapping my head around why inductors behave the way they do in certain circuits. Every physical explanation for why ##V = -L\frac{dI}{dt}## that I've seen explains how the voltage across the inductor is developed as the current changes: the changing current means a...

So, I did a BSc in Neuroscience and Math. While long term I think am interested in a PhD in neuroscience, I am likely going to do a MSc in Data Analytics ("Big Data") first. It offers both job security if I change my mind on the PhD as well as the chance for me to do what I love: statistical +...

Hello to all of you! This is my first post on this forum, though I have visited this site many times to learn from its wealth of information and insights. A bit about me, I just finished the second year of my undergraduate career and am looking forward to beginning my upper level physics...