# Search results

1. ### Basic Maxwell Speed Distribution Function

Homework Statement Homework Equations The Attempt at a Solution I DO NOT NEED HELP WRITING THE PROGRAM! I'm just trying to figure out the basics behind it. Since this is an integral I will be solving this problem by using riemann sums. Where I'm having the most trouble is in the...
2. ### Derive the energy equation for a van der Waal gas.

Homework Statement Derive the energy equation for a van der Waal gas when T and v are the independent variables. Homework Equations I'm required to start from: du=\frac{\partial u}{\partial T} dT +\frac{\partial u}{\partial v} dv The Attempt at a Solution We'll when I first...
3. ### Show that the Change in Volume is Independent of the Path

Homework Statement Homework Equations The Attempt at a Solution I understand what the question is asking. Both ways I should get the same answer. I'm having trouble figuring out the mathematics behind this question.
4. ### Fortran Fortran Help (Do Loop)

Hey guys, I'm new to fortran and I'm having a slight problem. I put my code below as reference. I first set up a my known values. Then I used an equation to solve for v. After I solve for v I then computed c which involves v. What I'm now trying to do is to loop the value I got for c back...
5. ### Two-conductor transmission line, find the potential difference V of th

Two-conductor transmission line, find the potential difference V of the two conductors.? Two-conductor transmission line. At point P (x=43 cm, y=32 cm) in Fig. 2-10, |E|=450 V/m. If s=25 cm, h=29 cm, and r=12.5 cm, find the potential difference if these two conductors. Ans. =1.13 kV...

Homework Statement The problem is to calculate the flux emanating from the exhaust of a jet engine. The air gas velocity from a jet engine varies linearly from a maximum of 300 m/s at the center of the circular exhaust opening to zero at the edges. If the exhaust diameter is 1.6 m, find...
7. ### General Enginnering Problem Dealing with Voltage Supply

Hello, So I'm facing some difficulties. I'm using a DC voltage supply and connecting it to a PIC Board. The AC adapter that comes with the board outputs 9V DC. To be safe I'm just using 5V from the DC voltage supply. When I connect it to the board the reading from the voltage supply drops to...
8. ### Which describes the interference at P? (Multiple Choice)

Homework Statement In Young’s double-slit interference experiment, if the rays that reach point P on the viewing screen have a path length difference of 2.50 wavelengths, which describes the interference at P? A. It is the central bright fringe. B. It is the first dark fringe to either...
9. ### When light reflects from a thin film back toward the source, what is the path length?

Homework Statement When light reflects from a thin film back toward the source, what is the path length difference? The Attempt at a Solution A. It is equal to twice the thickness of the film. B. It is equal to the thickness of the film. C. It is equal to half the thickness of the...
10. ### Finding Object Distance and Image Distance

Homework Statement More mirrors. Object O stands on the central axis of a spherical or plane mirror. For this situation (Table 34-4 below. All distances are in centimeters.) , find (a) the type of mirror (0 depicts "plane", 1 - "concave", 2 - "convex"), (b) the radius of curvature r (nonzero...
11. ### What self-induced emf appears in that coil?

Homework Statement The Attempt at a Solution I now know the units are nWb. I'm just getting a little confused by answer. ((6.1mH)(7.3mA))/224turnes=.198795) (mH*mA)/turnes So would that equal= 198.795 nWb?
12. ### When is the magnetic flux on a section of a closed surface equal to zero?

Homework Statement When is the magnetic flux on a section of a closed surface equal to zero? A. When the magnetic field is in the direction opposite that of the section’s area vector. B. When the magnetic field is in the direction of the section’s area vector. C. When the magnetic field...
13. ### Which describes the magnetic flux through a section of a loop?

Homework Statement Which describes the magnetic flux through a section of a loop? A. It is a vector that is directed outward through the section. B. It is a vector that is directed inward through the section. C It is a vector that is tangent to the section. D. It is a scalar...
14. ### Magnetic Field involving solenoids

Homework Statement Two long ideal solenoids (with radii 20 mm and 30 mm respectively) carry the same number of turnes of wire per unit length. The smaller solenoid is mounted inside the larger, along a common axis. It is observed that the magnetic field within the inner solenoid is zero. The...
15. ### Replace the three forces shown by a force-couple system.

Homework Statement Homework Equations included in the problem The Attempt at a Solution included in the problem. As you can see I already solved for the force part of the problem. What I'm having trouble with is what to do with the 40mm and 20mm of the problem. Do I even have...
16. ### In which situation is the magnetic force nonzero?

Homework Statement A particle moves through a magnetic field. In which situation is the magnetic force nonzero? A. The charge is zero and the particle is moving perpendicular to the magnetic field. B. The charge is negative and the particle is moving in the direction of the magnetic field...
17. ### Right Hand Rule for Vectors

Homework Statement Options: -z +z -y +y -z +z Questions: Situation (1), q positive: Situation (1), q negative: Situation (2), q positive: Situation (2), q negative: Situation (3), q positive: Situation (3), q negative: The Attempt at a Solution Situation (1), q...
18. ### Simplifying with Imaginary Numbers

Homework Statement I'm trying to see if what I have before the e match up with the correct answer. the correct answer is (2+.5i)e^(1+3i)x + (2-.5i)e^(1-3i)x The Attempt at a Solution This is what I have so far. I don't know how I would simplify anymore. Please help.
19. ### Capacitors connected in parallel to store a charge of 1.49 C?

Homework Statement How many 1.48 µF capacitors must be connected in parallel to store a charge of 1.49 C with a potential of 105 V across the capacitors? Homework Equations Refer to the attempt at a solution. The Attempt at a Solution Also, for the answer exact number, no...
20. ### What is the magnitude of the dipole's electric field at point P?

Homework Statement Homework Equations Included in my work. The Attempt at a Solution Final Answer = 5.04E-18 I'm not sure where I went wrong.
21. ### Electric Field on Central Axis

Homework Statement Which describes the electric field on the central axis through a ring of uniform positive charge? A. The field vectors point along the axis and toward the ring on both sides of the ring. B. The field vectors point along the axis and away from the ring on both sides of...
22. ### Finding x and y Components of Vector Sum

Homework Statement The Attempt at a Solution I wanted to make sure I use the right angle for vector B. Also just wanted to check my work.
23. ### Courses Any Online Physics 2 Courses

Hey everyone, So basically I'm looking to take an online Physics 2 course. I know that is not a great option to do because I will miss out on the hand-to-hand labs which are important. I'm currently finishing up Physics 1 for the semester and was unable to enroll into physics 2 at my college...
24. ### Find the MacLaurin polynomial of degree 5 for F(x).

Homework Statement Homework Equations The Attempt at a Solution I keep getting the answer 1- 96/4!*x^4. Can't find where I'm going wrong.
25. ### Gravitational Potential Energy (Multiple Choice Question)

Homework Statement Question: Rank the paths according to the corresponding change in the gravitational potential energy of the rocket–moon system, greatest first. A. 1 > 3 > 5 > 2 = 4 = 6 B. 2 = 4 = 6 > 5 > 3 > 1 C. 1 = 2 = 3 = 4 = 5 = 6 D. 1 > 2 = 4 = 6 > 3 > 5 The Attempt at a Solution...
26. ### Using Ratio Test to Decide Convergent/Divergent

Homework Statement The Attempt at a Solution I got that the limit goes to infinity using the Ratio Test and that would mean B. But I'm not 100% percent sure. Just looking for some to verify my answer if I'm correct or not.
27. ### Determine if the sum Converges or Diverges

Homework Statement The Attempt at a Solution 1. I have no idea. I know that the summation of the series converges. 2. I think it would diverge because the limit of the function does not equal zero. 3. I have tried the ratio test and got 1. Can't use the alternating series...
28. ### Show that the Ʃ 1/(2n-1)^3 Converges

Homework Statement Show that the Ʃ 1/(2n-1)^3 Converges The Attempt at a Solution I tried using the ratio the ratio test but that didn't work
29. ### Rotational Kinetic Energy Question

Homework Statement The picture shows an overhead view of a ring that can rotate about its center like a merry-go-round. Its outer radius R2 is 0.7 m, its inner radius R1 is R2/2, its mass M is 7.3 kg, and the mass of the crossbars at its center is negligible. It initially rotates at an angular...
30. ### Select the FIRST correct reason why the given series converges.

Homework Statement Select the FIRST correct reason why the given series converges. A. Convergent geometric series B. Convergent p series C. Comparison (or Limit Comparison) with a geometric or p series D. Converges by alternating series test The Attempt at a Solution I will...