Degrees Definition and 656 Threads

Homework Statement Two forces are applied to a car in an effort to move it, as shown in the figure below. (Let F1 = 430 N (10 degrees) and F2 = 356 N. (30 degrees) Assume up and to the right are in the positive directions.) (a) What is the resultant vector of these two forces? magnitude=? °...

Hi guys, My science teacher gave me a project to design a robot for a specific planet. I must also include what materials the robot were to be made of. Unfortunately the planet I received has very hostile conditions 1. Temps of -1000 degrees C. Do not ask my why my planet is colder than 0K (3...

The temperature at which the process is carried out is around 120 degree centigrade, however in the interior , the reaction temperature goes to around 1000 degree centigrade. How is it then , that the glass beaker in which the synthesis is carried out does not crack even at such high...

If anyone has anything to say at all about acoustics, I'd love to hear it. I'm finishing up a B.A. in physics this year, and I would like to pursue a Ph.D. in acoustics, architectural acoustics, acoustic engineering, something like that. I've also seen degrees in mechanical engineering with a...

I was just thinking, If suddenly an object goes about 689 degrees Fahrenheit (365 degrees celsius) in a room, about which perimeter would human life be impossible ?

Homework Statement (42°12'13'')+(59°56'15'')+(257°51'35'') Homework EquationsThe Attempt at a Solution 42°12'13'' 59°56'15'' 257°51'35'' -------------- 358°228'63'' +3° +1' -60'' --------------- 361°229'3'' -180' --------------- 361°49'3'' The answer is 360°0'3'' Where did I go wrong?

Hi, I'm currently trying to learn about finding equations of motion from the Lagrange equation, and I'm a little confused about how it applies to multiple degree of freedom systems. I am using the following form of the equation with T as total kinetic energy, V as total potential energy, R as...

a flagpole subtends a angle of 40 degrees. What angle does it subten 3/4 of the way up. Answer is supposedly 32 degrees ,but how ? oldfart

Greetings, I'm considering two online degrees: the University of Waterloo's 3-year BSc in Science and the Open University's BSc (Honours) in Natural Science. Which is more prestigious, thorough (I want intensive),... Any advice would be appreciated.

Homework Statement A ball is thrown upwards at 20 m/s at an angle of 15 degrees to ground. How long until the ball touches the ground? Givens for vertical: Acceleration = -9.8m/s2 v1= 5.2 m/s (20SIN15) v2=0 displacement=0 t=? Givens for horizontal Acceleration= 19.3 m/s (20COS15)...

I am currently a physics major at a fairly small school, that is not know for its physics program. I got into better schools, but I chose this one due to financial reasons. I'm on track to graduate in the spring, and I'm a bit torn between a few options that I have. I can easily finish a second...

I hold a 3 year BEng in Mechanical from a British university and currently I am working. I want to switch over to Physics. I am planning to do a BSc degree with Physics major from an distance education university in India namely IGNOU i.e. Indira Gandhi National Open University. This program...

Hi, in my previous course on basic Physics we learned to solve problems concerning simple mechanical systems like this: The method consists in analyzing separately the two degrees of freedom of the system, computing for each degree the acceleration of each body (or whathever) and the sum...

Could someone please explain what valley degrees of freedom are?

I cannot find a simple answer to this question anywhere. What degrees of freedom contribute to the temperature of a gas? Let's say we have a box of ideal gas. The temperature is the average kinetic energy of the particles and only includes translational degrees of freedom: velocity. Now...

A car (C1) coming in the opposite direction hits the other car (C2) at right angle. The car which gets hit, C2 rotates in 180 degrees. What was the speed of the car C1? Assumptions: Both cars have same tyres. W of C1 =3200lb (2012 Honda Accord)...

I am currently a part-time student in the Master of Science in Astronomy course in our country (I already finished one semester, and I am currently taking the second one). However, my employer (I work at a research laboratory concerning meteorology), has suggested that I take a Master of Science...

I've been thinking about the number of degrees of freedom in a tensor with n indices in 2-dimensions which is traceless and symmetric. Initially, there are 2^{n} degrees of freedom. The hypothesis of symmetry provides n!-1 number of conditions of the form: T_{i_{1}, \ldots i_{n}}-...

I am looking to do something in the nuclear field. I can get a mechanical engineering and physics double major then get a masters in nuclear physics or nuclear engineering, or should I just get the physics degree and masters in Nuclear physics/engineering? I'm currently at a branch college...

What are your thoughts on Master's degrees completed online in comparison to those completed at a university campus? Does industry/academia tend to look down upon online degrees, or could they not care less, as long as the degree wasn't from a diploma mill? Do you think online education will...

Hello everyone, first please accept my sincere greeting. I finished my 4-year undergraduate study at the top 1 university of China (Tsinghua University) in 2012, majoring in Mechanical engineering (concentration is thermal and heat transfer). After that I came to Purdue University and got a...

Hi everyone, learning a bit of hands on engineering and have no idea what to search in order to buy what is needed. I am looking for a motor that can be activated by a simple switch on a wire that will rotate a piece of metal 90 . degrees. Excuse the poor image but hopefully someone can point me...

So I'm trying to figure out the average energy of diatomic gas molecules via the equipartition theorem at high temperature (such that it's translational , rotational and vibrational modes are activated) and to do that I need to know the degree of freedom. some websites claim it would be 6 , 3d...

In a recent Physics lab, I experimented with the magnetic field generated by two Helmholts coils. I used a Hall probe, and some software created by the Grad students to plot the field strength against probe position in a series of configurations. I understood almost all of the lab, I...

And does it matter if you are going from 200F to 100F or 500F to 400F? ie, is it temperature dependent?Thanks

Hi guys, I am stuck with a problem here. First, It is given that for 2-dimensional projectile motion, a trajectory of 45 degrees will yield the greatest range. However, how do I show that angles that differ from 45 degrees by the same amount will yield the same range? For example, the range of...

I need a formula to put an angle between -180 and 180 and recycle if not in the range. I can do it between 0 and 360: angle = deg - 360 * floor(deg / 360) just not between -180 and 180 Oh and what is the name of this function?

Thanks

If u had a 18.5L water in a plastic container, in a room that was at 144 degrees. How long would it take for 18.5L water to rise to that temperature? I am trying to buy a water storage device, but it can't go over 122 degrees.

Homework Statement A long light inflexible rod is free to rotate in a vertical plane about a fixed point O. A particle of mass m is fixed to the rod at a point P a distance l from O. A second particle of mass m is free to move along the rod, and is attracted to the point O by an elastic force...

The bearing of B from A is 120 degrees. What is the bearing of A from B?

Homework Statement To prove that system will travel freely upto 180 degree m2 is counterweight and m1 is mass of pan (=3kg) i have attched the fbd or another link http://www.imagebam.com/image/54bb5a394377595 Homework Equations m1(h + a sin θ) g x = m2 y h g m2 = 9.13 kg The Attempt at a...

A loaded sled weighing 80N rests on a plane inclined at angle θ= 20° to the horizontal (see pic). Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.15 Taken from...

1. Two forces, 80N and 100N, acting at an angle of 60deg with each other, pull on an object. a) what single force would replace the two forces? r^2=(x^2 + y^2)^2 , sinΘ, cosΘThe Attempt at a Solution I actually got the correct answer by using an angle of 0 degrees for 80N and 60 degrees for...

What is the notation for the angular distance traveled by an object moving in circular motion? s is for regular distance (m,ft,inches, etc.). What I want is some x to be the distance in either degrees or radians. How should I call that x?

Homework Statement In the system of Problem 2-6, we need move the load by 20 degrees and bring the system to rest. Assuming a triangular speed profile of the load with equal acceleration and deceleration rates (starting and ending at zero speed). Assume a coupling efficiency of 100%. The...

Hello, I am watching this video to try and better understand Gibb's Phase rule The part of interest starts at 4:30 I like that he is using a visual to explain, which is very helpful. When there is 1 phase and one component, there are 2 degrees of freedom. This means two variables can be...

I did an experiment in which I varied the starting angle of elevation of a gyroscope. I noticed that at 45 degrees, the precessional period (amount of time to perform one spin) is the lowest, while at 0 degrees and 75 degrees, the precessional period is higher. If I plotted this on a graph, it...

Hi, I have bachelors in both math and physics and have been working in the I-banking field for 8+ years. I left science for financial reasons and after working hard for all these years, I accomplished what I initially set out to do, now I find myself at a crossroads. I want to pursue a...

Hello, I want to create a motion using electricity, using the cheapest means possible (DIY). Basically I'm trying to rotate an object 90degrees when the current is on, and back to its original position when the current is off. The questions are: 1) Is this possible? 2) Can this be done using...

So, I'm currently in the process of getting my B.A. in physics from Miami University. Not exactly a top-tier school, but not a throwaway school, either. I should be able to graduate with a GPA between 3.2 and 3.4, and I tend to test very well, so I'm not worried about my GRE scores. Anyway, my...

I am majoring in Physics and Math at Purdue University. For the physics requirements, I need to take two Mathematical Methods of Physics courses. Below are the catalog entries for the two courses. Mathematical Methods of Physics I Discussion of wide-ranging physics problems from mechanics...

I am a 25 year old consultant in the oil and gas industry. I work mostly with welding, pipe manufacturing, and protective coatings. It is a lucrative career but not a very fulfilling one. I do not have any college under my belt. I have always enjoyed physics. I spend a lot of my free time...

If we consider E and B individually, there are 6 total degrees of freedom. But they are actually related to each other by Maxwell's equations. So we can find potentials and reduce dof to 4; 3 in vector potential and 1 in scalar potential. Thus, there remain 2 redundant dof. This is the...

Hi, I have one question, The rel. dofs are: g_* (T) = \sum_{i=bosons} g_i \Big( \frac{T_i}{T} \Big)^4 + \frac{7}{8} \sum_{j=fermions} g_j \Big( \frac{T_j}{T} \Big)^4 Before the neutrinos decoupling, the relativistic degrees of freedom are: g_*=g_\gamma + \frac{7}{8} (g_e + g_\nu)= 10.75 This...

Homework Statement An inclined plane, fixed to the inside of an elevator, makes a 32 degrees angle with the floor. A mass m slides on the plane without friction. What is its acceleration relative to the plane if the elevator accelerates upward at 0.50g? Homework Equations F = ma The Attempt...

Homework Statement What size FPC is needed to supply a family's domestic hot water needs in March in Denver, CO? Assume 80 gallons per day are needed (1gal=8.3 lb.) for the water and that the collector-heat exchanger system has an average efficiency of 40%. The collector tilt angle is equal to...

I hope I do not extend myself here. I am a Brazilian High School student, graduating this year, that plans to pursue a Physics undergraduate in the United States. Since I started High School I decided on my degree; I love physics and my ultimate dream is to research the depths of the field...

Homework Statement The diagram shows the molar heat capacity of an ideal diatomic gas and the number of degrees of freedom at different temperatures. Explain why there are 3 discrete plateaus and why the curve is smooth and leaning between them. Homework Equations - The Attempt at a Solution...

From Abel–Ruffini theorem, we know that, there is no general algebraic solution to polynomial equations of degree five or higher. So there are general solutions for degrees n={1,2,3,4}. Does degree have to be an integer? What about the fractional degrees? Are there general solutions for example...