MATLAB is thankfully quite easy to learn and has a useful database. The MathWorks website, http://www.mathworks.com/help/matlab/, should have everything you need along with examples. If this is still insufficient I would recommend a textbook, but the type of book will be dependent on your...
A picture might be helpful so we can see how the system is setup.
However, I can give you some general answers. If you wish to move an object with a minimum amount of force, you could use leverage through torque. By this I mean something like a long pole which is attached to the door and a...
Alright so your basic plan of attack is to use the right hand rule. If there is a magnetic field pointing north and there is a wire running perpendicular to it: in what direction must the current flow to have its magnetic field oppose the one already present? I hope this rephrasing helps you some.
The reason you're getting a different answer is because you are not solving the same system. The problem gives you x (t), but you are trying to solve for it as though it is an unknown. By doing this you are changing the support from moving at a known oscillation to having its oscillating based...
So the point to make here is that force and pressure are not the same thing. Pascal's principle states the change in pressure is due to the change in height. However, if you try to find the change in force from the top to the bottom you will find it depends on the cross sectional area as well...
You're intuition is correct, there is certainly an easier way to determine the energy eigenvalues. The most common method is using the creation and annihilation operators (a and it's hermetian conjugate). If you want a good understanding of this method I would check out Griffiths quantum...
So the dot product is very useful because it will give you a general formula for the magnitude of a vector. The magnitude of a vector is defined to be |A|=√(A⋅A). In the case of the unit vectors being perpendicular this simplifies to Pythagorean's Theorem. If they are not, this becomes the law...
so if the unit vectors being used are not perpendicular you use the more generalized 'law of cosines formula'. You can find some info on it here https://en.wikipedia.org/wiki/Law_of_cosines. Have you been introduced to the dot product in your course yet? If you have I can give you a better...
The Pythagorean Theorem only works for right triangles (2 sides are perpendicular). In this particular problem you are trying to insist that the unit vectors, u and v, are perpendicular to one another (like a right triangle) which is false (they have 60 degrees between them).
I may need a bit more information to help you with your problem. First, by two degrees of freedom are you referring to a system of two coupled oscillators? Or are you referring to a simple mass on a spring problem in two dimensions?
Do you plan on continuing physics into graduate school or just obtaining a bachelors degree? If it's the former, quantum mechanics and relativity will be your bread and butter, learn to love them. As for just obtaining your bachelors, you will need to do some quantum mechanics, but not a...
Your difficulty might come from not having all the relevant equations. Think about how the velocity of a particle is related to its wavelength via an important equation.
So by definition the efficiency is eff=(how much energy you got out)/(how much energy you put in). In this problem, the 40N is the force you put in and the potential energy is the energy you get out. Hope that helps you
okay so I get N*C_v*(deltaT)=Q_1+Q_2=P*(delta t)+[e*(sigma)*A*T^4](delta t)
and I can find all of the variables, however how do I get rid of delta t? (the change in time, which is different from deltaT, the change in temperature). and I am not sure how to get the value of N (the number of mols...
Homework Statement
A cubical box 19cm on a side is constructed from 1.4cm -thick concrete panels. A 100 W lightbulb is sealed inside the box. What is the air temperature inside the box when the light is on if the surrounding air temperature is 20 ∘ C ?
Homework Equations
E_th=W+Q...