Static Definition and 1000 Threads

Static is a fictional superhero appearing in American comic books published by DC Comics. The character was created by Milestone Comics founders Dwayne McDuffie, Denys Cowan, Michael Davis, and Derek T. Dingle. Static's first appearance was made in Static #1 (June 1993) in the Modern Age of Comic Books, written by McDuffie and Robert L. Washington III, and illustrated by John Paul Leon. Virgil Ovid Hawkins is a member of a fictional subspecies of humans with superhuman abilities known as metahumans. Not born with his powers, Hawkins' abilities develop after an incident exposes him to a radioactive chemical. This event renders him capable of electromagnetic control and generation.
The character drew much inspiration and was in fact designed to represent a modern-era Spider-Man archetype. After the closing of Milestone Comics, Static was incorporated into the DC Universe and became a member of the Teen Titans. A common misconception is that Hawkins is the son of fellow DC Comics superhero Black Lightning, who debuted much earlier and possesses electrical abilities. Black Lightning addresses the coincidence once in a Justice League narrative.Static has made numerous appearances in other forms of media. The character has been featured in various animated series, including Static Shock, a version of the storyline made slightly more suitable for a younger audience, as well as animated films and video games.

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  1. J

    Static, spherically symmetric Maxwell tensor

    Homework Statement Show that a static, spherically symmetric Maxwell tensor has a vanishing magnetic field. Homework Equations Consider a static, spherically-symmetric metric g_{ab}. There are four Killing vector fields: a timelike \xi^{a} satisfying \xi_{[a}\nabla_{b}\xi_{c]} = 0 and...
  2. C

    Compression and bending on a cross section,how to make sure its static

    The problem is the following, i have a rectangle as a cross section of steel, which is bended and compressed.. i want to use the equilibrium equations to make sure its static, but since the compressive force and the traction force aren't equal, the equilibrium equations make no sense here's a...
  3. P

    MOSFET inverter that satisfies a given static discipline

    Homework Statement Consider a family of logic gates that operate under the static discipline with the following voltage thresholds: VOL = 0.5 V, VIL = 1 V, VOH = 4.5 V, and VIH = 4 V. Using the switch-resistor MOSFET model, design an inverter satisfying the static discipline for the four...
  4. S

    What Are the Unknown Masses and Tensions in a 20kg Static Pulley System?

    Homework Statement Mass 1 is 20Kg, find m2 and m3 and the tensions please help I do not know where to start :( Please help.
  5. W

    How to Simulate Force Magnitude for a 10 mm Imbus Key in ANSYS?

    Static structural simulation with rigidity and strength criterias I have a 10 mm imbus key which is constrained on the shorter end, while there's a force on the longer end simulating ccw rotation (i.e. "unscrewing"). I have no problem setting the force and simulating deformation and...
  6. S

    How Do I Solve These Equilibrium Equations with T₂ and T₃?

    I already have this equations. But I'm confused on how to solve it, because of this 100. ΣFx=0 T₂Cos30°-T₃Cos60°-100N=0 ΣFy=0 T₂Sin30°+T₃Sin60°-9810N=0 How will I solve this? Please I Really have a problem on simplifying it, I need to solve for the T₂ and T₃
  7. A

    Magnitude of the tension when there is static (variable) friction

    Hello folks, I'm being tricked by the pesky friction force again. I know that static friction acts just to put everything in equilibrium as long as its magnitude doesn't exceed a certain value. That is ok. But when there are other adjustable force such as TENSION and NORMAL, (which in this...
  8. C

    Static failure analysis of a pin

    So i am confused on how to do the analysis on the pin where the hook attaches to the arm. would their be a shear and a torque at that point?
  9. J

    Coefficient of static friction for tongs.

    Homework Statement I´ll show the problem with a picture: Homework Equations M=rxf Sum Forces = 0 Sum Moments= 0 The Attempt at a Solution I recognize that I am completely lost with this problem, so I´ll try to analyze every force acting on every body to show where are my doubts. When...
  10. mesa

    Question about an electron beam traveling through static B-fields

    In the figures below is a sketch of an electron beam entering alternating static magnetic fields perpendicular to that of the motion of an electron beam. This beam is injected from a 45° angle below the x-axis. Figure 1 is a representation of this and is supposed to be an illustration of a basic...
  11. Astrum

    Static Equilibrium and D'Alembert's Principle

    Virtual work principle states: δW = \sum^{N}_{i=1}\vec{F}_{i}\centerdot δ\vec{r}_{i} And from this, we can see that if a system is to be in equilibrium we have δW = (\sum^{N}_{i=1}\vec{F}_{1} \centerdot \frac{\partial \vec{r}_{1}}{\partial q_{1}})δq_{1} + \cdots = 0 Where did q come...
  12. G

    Static Universe vs Expanding Universe

    Hey I'm 16 and currently studying my last year of physics in high school. I have to write an extended research task on a topic relating directly or indirectly to astrophysics. I have chosen to do the static universe theory vs the expanding universe theory. I've been researching as of late and...
  13. mesa

    Does a charged particle rotate when traveling through a static Bf?

    I have been looking at mass spectrometers, in particular the interactions between the Bf ind of a charged particle in motion in a static Bf of the spectrometer. Figure 1 and 2 shown below are a basic 2 dimensional slice of the problem from the top (fig 1) and from the inside of the radius...
  14. R

    Creating static charge at a distance.

    Is there any way to create an isolated point charge without any contact with the matter which one wishes to charge? I recognize that this would mean stripping off electrons from the substance, so I suppose my question is: is there any way to strip off electrons without having to specifically...
  15. zrek

    Deflection/diffraction of static electric field

    I know the fenomenon of diffraction (one slit) in case of electromagnetic waves. http://en.wikipedia.org/wiki/Diffraction What happens if there is only a static electric field? There is a point-like charge at the point C. The black line is a wall that blocks the electric field. At the...
  16. K

    Simulating deformation from impact with static load possible?

    Hi everyone, For current project at work I am looking into possibility of simulating deformation from impact with static force. Here is the input data: A ball of 0.5 kg at speed of 25 km/h crashes into a damping foam which is placed on a rigid wall. Stopping (deformation) distance in the foam...
  17. S

    Static equilibrium - girl on diving board

    Homework Statement A diving board of length L is supported at a point a distance x from the end, and a diver weighing w1 stands at the free end (Figure 1) . The diving board is of uniform cross section and weighs w2. (Figure 1) Find the force at the support point. Find the force at the end...
  18. J

    Is a static EM field made of photons? Do they move at c?

    So i am taking the MOOC of Galitski et al on Exploring Quantum Physics. I like it. But i keep running into some difficulty with my understanding of what it means to quantize a static EM (or E or M) field: Is the field made up of photons? If so, are they somehow moving at the speed of...
  19. W

    Does Static Equilibrium Necessitate Zero Velocity?

    1. What occurs during static equilibrium? 3. The net force and net torque on the object is zero. The acceleration of the object is zero too. Would velocity of the object also be zero? Or no because it has constant velocity?
  20. B

    Can You Help Me Solve This Static Mechanics Problem?

    Hi I can't figure out this problem, can you please help me out? Thank you so much! http://imageshack.us/scaled/landing/515/19200619.jpg
  21. G

    Static vs. Moving wave in an Oscilloscope

    I have a basic question about using an oscilloscope... What's the difference between an oscilloscope displaying a static wave versus a moving wave? Is the difference in the type of scope you're using (digital vs. analog) or is it a setting on the scope itself? This would be used for visualizing...
  22. B

    Why Do Helical Viruses Remain Attached?

    according to http://en.wikipedia.org/wiki/Virus_(biology) helical viruses keep their genetic material in place because of "interactions between the negatively charged nucleic acid and positive charges on the protein". Why do these two structures continue to be attached to each other? I would...
  23. S

    Static friction and kinetic friction

    A chuck is sliding downward an inclined plane with friction. The inclined plane has an angel 26 degrees with the horisontal. At a point the chuck has a velocity 4 m/s. The velocity after 2 seconds goes down to 2 m/s. The g is applied to 9.81 m/s^2. So from here I need to find the kinetic and...
  24. J

    Static equillibrum problem (FBD)

    Homework Statement The forearm weighs 20.0 N and has a center of gravity in the position shown in the diagram. The person is pushing DOWN on the weight scale shown in the picture. If the reading on the scale is 70 N, calculate the tension, M, in the triceps muscle. I understand how this...
  25. M

    How photons and static em feilds work

    The photon as I understand it is a massless particle that "must" travel at the speed of light. However I do not understand the idea that a photon is also the carrier of the em force. If there is a simple ball of static charge and a test charge comes near do photons exchange between the two...
  26. V

    Static situations and electric fields - special relativity

    Homework Statement Is it possible to create an electrostatic field E(x) (in 3 spatial dimensions x and E is a vector of course) such that i) E(x) = a × x (cross product) ii) E(x) = (a.x) b (dot product between a and x) where a,b and non-zero vectors that do not depend on time and the...
  27. M

    Tension & Torque, Static Equilibrium

    Homework Statement Homework Equations Ʃτ = 0 τ = rFsinθ The Attempt at a Solution I'm not even really sure where to start with this. My first thought was that it's not moving, so presumably the forces sum to 0. I also thought of treating the point where the net is exerting...
  28. WannabeNewton

    Dust generated static space-time implications on fluid 4-velocity

    Imagine we have a perfect fluid with zero pressure (dust), which generates a solution to Einstein's equations. Show that the metric can be static only if the fluid four-velocity is parallel to the time-like (and hypersurface orthogonal) Killing vector characterizing the static metric. So, I...
  29. P

    Quick Static Equilibrium Questions

    Homework Statement A horizontal beam of weight W is supported by a hinge and cable as shown. The force exerted on the beam by the hinge has a vertical component that must be: Answer is nonzero and up. The pull P is just sufficient to keep the 14-N block and the weightless pulleys in...
  30. I

    Static Friction Can Cause Motion

    Homework Statement Two people start running from rest. The first person has a mass of 59 kg and is wearing dress shoes with a coefficient of static friction of 0.52. The other person is wearing running shoes with a coefficient of static friction of 0.66. Explain why we do not really need...
  31. L

    What Force is Needed to Wheel Over an Obstacle?

    Homework Statement what magnitude of force applied horizontally at the axle of the wheel is necessary to wheel over an obstacle of height h = 0.108 m? The wheel's radius is r = 0.698 m and its mass is m = 1.71 kg. Homework Equations I know that in order to have a static equilibrium we...
  32. M

    Static friction between two objects.

    a child (m=30kg) sits 5m from the axis of rotation on a flat turn table which makes a full rotation every 8 seconds. A. find the childs period (t) and frequency (f) Full rotation every 8 seconds, T=8 Frequency = inverse of period = 1/8 B. What is the tangential velocity of the child? Vtan=ωR...
  33. A

    Understanding Static Magnetism: How Does it Work?

    Maybe a stupid question, but I'm trying to get my brain around the concept of magnetism, specifically for static magnets, not electromagnets. I understand that the magnetic field is a result of all the moments in the atoms being aligned. The spin of the electrons around the atoms is the current...
  34. C

    Breaking static friction w/ a circle

    Homework Statement A crate (35 kg) is located in the middle of the flat bed of a pickup truck as the truck rounds an unbanked curve in the road. The curve may be regarded as an arc of a circle of radius 80.0 m. If the coefficient of static friction between crate and truck is 0.410, how fast...
  35. S

    Static Stability of Aircraft designed in X Plane

    HI Everyone. First of all, I'm not an aeronautical or mechanical engineer. I'm an electronics engineer but I'm currently doing a group project where I'm required to carry out a stability analysis on an aircraft that we've designed using the simulator software, X Plane. I apologise in...
  36. Y

    Static pressure inside an air conditioner's capillar

    Let's a system be as follows (with approximate but, still, real numbers). Compressed refrigerant gas get condensed in a condenser and as liquid with +/- 15 B SP enters a capillary (a "metering device"). It exits the capillary at high speed and enters the pipe leading to the evaporator having...
  37. L

    Difference btw induced and static electric field.

    ∇x E≠0 for an induced electric field whereas for field produced by static charges we have ∇x E=0. This is a very huge difference in the property of a vector field,then why do we call both of them electric field ?
  38. C

    Force to get a crate to overcome static friction

    Homework Statement A crate has a mass of 42.0 kg. The coefficient of static friction between the surface and the crate is 0.422. The coefficient of kinetic friction between the surface and the crate is 0.3.44. If a person pushes the crate by pushing down at an angle of 24°, what is the...
  39. R

    Coulomb's Law, what charge will make the two charges in static eq.

    Homework Statement In the figure below the charge in the middle is Q = -3.7 nC. For what charge q1 will charge q2 be in static equilibrium? Homework Equations F = (K*q1*q2)/(r^2)The Attempt at a Solution I'm not sure where to go after acknowledging that Fq1->q = -Fq2->q
  40. L

    Mastering Physics: Rolling Motion, Pebble stuck in a Tire by Static Fr

    Homework Statement A 1.2 g pebble is stuck in a tread of a 0.76 m diameter automobile tire, held in place by static friction that can be at most 3.6 N. The car starts from rest and gradually accelerates on a straight road. How fast is the car moving when the pebble flies out of the tire...
  41. L

    Archived Rolling Motion, Pebble stuck in a Tire by Static Friction

    Homework Statement A 1.2 g pebble is stuck in a tread of a 0.76 m diameter automobile tire, held in place by static friction that can be at most 3.6 N. The car starts from rest and gradually accelerates on a straight road. How fast is the car moving when the pebble flies out of the tire tread...
  42. I

    Minimum force to overcome static friction

    Homework Statement http://postimage.org/image/530mgjivr/ How come the solution states: (20)(9.8)(0.7cos30 - sin 30) isn't sin30 going in the positive direction? shouldn't the solution be Sin30 - .7cos30? Also, when solving these types of problems should I leave the mg part outside of the...
  43. H

    Static Equillibrium. [T=0, [F=0? Problem finding force using component

    Taking a physics 12 class in night school and he only gave us an example of a Beam and Wire question where the Wire was holding a Beam against a wall. The wire was at the end of the beam and holding a sign. Using the methods taught, I have been able to understand the Torque = 0, but Forces get...
  44. R

    Static equilibrium against a wall

    Homework Statement A uniform strut of length, L and weight 780 N is free to pivot about point P where it is attached to the wall (see diagram) A weight W = 815 N hangs straight down from the end of the strut. A rope is attached to the same end as the load and the wall completes the support as...
  45. C

    Static friction and fraction of mass of rope that can hang.

    Homework Statement The coefficient of static friction between a rope and the table on which it rests is μ. Find the fraction of the rope that can hang over the edge of the table before it begins to slip. Express your answer in terms of μ. Homework Equations The Attempt at a...
  46. J

    Circular Motion and Static Friction Problem The Wall of Death ride

    Circular Motion and Static Friction Problem.. "The Wall of Death" ride Homework Statement A fairground ride called "The Wall of Death" consists of a cylindrical container of internal diameter 6.50m, mounted on a cylindrical axis. The passengers feel as if they are being pushed against the...
  47. J

    Static Friction Coefficient Problems

    Homework Statement There are 2 questions in the attachments both with the same scenario I'm having troubles with. Homework Equations f=ma The Attempt at a Solution I tried finding the budging force between the 2 masses and that was about 4. I don't know where to go from there to...
  48. H

    Coefficient of static friction on an inclined plane

    Homework Statement A dump truck loaded with rock has a coefficient of static friction of 0.4, and a coefficient of kinetic friction of 0.2 between the rock and steel tray. If the truck tilts its bed to 25°, calculate the coefficient of static friction on the load. Hence calculate the angle...
  49. R

    Calculating Centrifugal Force for a Bug on a Spinning Compact Disc

    1. A bug crawls outward from the center of a compact disc spinning at 230 revolutions per minute. The coefficient of static friction between the bug's sticky feet and the disc surface is 1.2. How far does the bug get from the center before slipping? Homework Equations fs ≤ μs nThe Attempt at a...
  50. L

    What is the difference between coasting and static cosmology?

    Is the key difference between coasting and static cosmology models the presence of a linear acceleration, or are there other major differences? Regards, Noel.
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