My question applies to the case when the switch opens. By applying KCL in order to get a first order diff equation, the following problem arises when I choose different current directions (which shouldn't happen because KCL says the current direction doesn't matter because it will be fixed...
I am "continuing this thread" in hopes of asking questions that deal with the meaning of the question. https://www.physicsforums.com/threads/griffiths-e-m-3-33-write-e-field-of-dipole-moment-in-coordinate-free-form.359973/
1. Homework Statement
Show that the electric field of a "pure" dipole...
Homework Statement
Find the angle of the face diagonals of a (unit) cube.
I agree with this solution, but I have a problem with another face diagonal: the face diagonal from the angle (0,0,1),(0,0,0), and (1,1,1).
Homework Equations
dot product
cos-1(a.b/ (|a||b|)
The Attempt at a Solution...
Homework Statement
Find Io using Norton's Theorem
Homework Equations
The Attempt at a Solution
I broke it into the following circuit:
I would like to break it down some more but if I open the node between 3k and 6k (ohms), and 6k and 6k (ohms), I run into problems....
What should I do...
Homework Statement
Find the gauge pressure of a piston-cylinder system, assuming that the piston perfectly covers the cylinder. The piston's radius is 5 cm, its mass is 3kg, and the force being applied to it is 75N in the same direction as gravity. Looks like this picture...
I am a freshman mechanical engineering. I have been exposed, to some extent, mechanical/materials, robotics(electrical), and I'm headstrong about not doing civil. I considered computer science, but I'm glad I didn't because it seems that not much calculus (math) is required for the major. I...
In my physics lecture, my professor "proved" that acceleration does not affect the amount of energy used in driving a car. Assume car is driven along flat road. In the short,
(assume air resistance is neglected, and the W done by the car's engine, W_{engine} is non conservative, \Delta PE...
Homework Statement
There is an image but I will reiterate my problem.
The writer is solving for t. Okay, easy enough.
Homework Equations
y-y0 = v0 t + 1/2 a t^2
Textbook says
t = sqrt( (2(y-y0) - 2 v0) / a )
The Attempt at a Solution
Shouldn't it be
t = sqrt( (2(y-y0)...
Homework Statement
For the following dimensional equation, find the base dimensions of the parameter f:
M M-3 = a cos( f L )
Homework Equations
M represents mass, a represents acceleration due to gravity, in terms of mass * length over seconds squared [[M * L]/[t2]] where L represents...
I am going to be an incoming freshman for engineering (undecided, big 4). I am building a schedule that I don't know how to build. Scored 5 ap calc bc.
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My schedule list is
* **English**: Freshman Composition (Honors maybe, i dont think this matters much)
* **Math**: Calc 3/Lin. Alg...
I am an upcoming freshman. I will major in engineering. When applying to the school I chose mechanical because of its "versatility and stability in the job market." (I don't fully understand the meaning of these phrases; I get my knowledge from anecdotal experience when browsing forums). I may...
Homework Statement
I hope this does not violate copyright or anything but this problem originated from an assignment from Introduction to Mathematical Thinking in Coursera. I could not post there because the class ended and the discussion board there is dead.
Let C be the set of all cars, let...
I did not post this on the homework forum because they required to use the template.
First, I have been using the "Known____Unknown______Equations" format; however, I feel this is not organized well enough for me. Then, I tried "Variables____Components_______________Equations" format. Do...