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. P

    Static coefficient of friction between copper or brass

    Hello all I'm trying to calculate a torque needed to tighten a threaded terminal. (Both male and female parts are copper alloy) I'm using Motosh's equation which requires me to use the coefficient of friction. Web sources tells me that the copper-copper coefficient of friction is 1.0. The...
  2. X

    Static equilibrium: setting up the equation

    Homework Statement A rigid wire frame is formed in a right triangle, and set in a vertical plane as shown. Two beads, of weight W1 = 1.5 N and W2 = 2.5 N, slide without friction on the wires, and are connected by a cord. When the system is in static equilibrium, what is the tension in the...
  3. C

    How High Can Water Rise Before Tipping a Dam?

    Homework Statement Find height (h) of the water level which can result in failure of dam by tipping it over due to water pressure at U/S of dam. Also draw the free body diagram. Density of water to be = 1000 kg/m^3 and its specific weight=62.4 lb/ft^3 Hints: The specific weight of concrete is...
  4. H

    Marble Stack Equilibrium: Solving for Forces at Contact Points

    Homework Statement Two uniform, 75.0-g marbles 2.00 cm in diameter are stacked as shown in Fig. P11.75 in a container that is 3.00 cm wide. (a) Find the force that the container exerts on the marbles at the points of contact A, B, and C. (b) What force does each marble exert on the other...
  5. C

    Can static pressure be controlled in a pipe without adjusting the flow rate?

    Hi everyone, Is there any mechanism/method/device to control static pressure? Noting that, total pressure = static + dynamic pressure. The scenario I am thinking is just water flowing through a pipe (assume incompressible), and I want to control the static pressure at two points along the pipe...
  6. E

    Static Electricity -- how does it work?

    in my physics lab we did an expirement where we had to use an vernier electrostatic kit. So it consisted of placing a metal can inside a metal cage, and both were attached to an plastic disk, and below was a metal plate which was used for grounding. A black wire was connected from the cage to...
  7. Eclair_de_XII

    Finding static friction of a block on a table on a pulley?

    Homework Statement "When the three blocks in Fig. 6-29 are released from rest, they accelerate with a magnitude of ##0.500 \frac{m}{s^2}##. Block 1 has mass M, Block 2 has mass 2M, and Block 3 has mass 3M. What is the coefficient of static friction between Block 2 and the table?" Homework...
  8. G

    I have a few questions about Vce(sat) and static resistance

    I think this is the place to ask these questions about static resistance of semiconductors: The static resistance in semiconductors is that kind of resistance that will decrease if the semiconductor is more heavily doped, right? In transistors, and especialy saturated transistors the usual 0,2V...
  9. Omish

    What temperature do thermocouples show? Static or Total?

    What temperature does thermocouples show? Static or Total? And also in formulas for example Q(dot) = m(dot) * C_p * (T2 - T1) which temperature should be used precisely?
  10. marsupial

    Coefficients of kinetic and static friction in a pulley

    Homework Statement A block of mass ## M_1 ## is on an inclined plane (the plane is inclined at 30 degrees), and is attached with a light cord over a light, frictionless pulley to another mass ## M_2 ##. ## M_1 ## is fixed at 5.00kg, and ## M_2 ## can be varied. When ## M_2 = 3.20 kg ##, ##...
  11. petef

    Accelleration of a static body in wind

    Homework Statement I drop a 50mm sq concrete cube fom a notional tower into a steady horizontal wind stream of 10m/sec. Homework Equations How long before the cube reaches the wind spead What is the accelleration How far will the cube have traveled down range The Attempt at a Solution
  12. A

    I Static Problem for Upright Vessel

    Hey all, I'm currently working on a problem where whether an upright vessel will be knocked over by wind needs to be determined. The vessel is essentially an upright cylinder with a skirt on the bottom. I've attached a link to a blank diagram of it. I know how to calculate the force from the...
  13. A

    Static Equilibrium Problem involving Moments

    Equations: Net torque=0=Net force I believe this is a static equilibrium question but can't figure out how to do it
  14. H

    Static electricity and D Trump physics pic

    as far as I know this is real, from Scotland. could be a good discussion starter for static electricity;
  15. A

    Static friction vs. Normal force on an incline

    I have two surfaces that have a coifficent of friction of .6. Disregarding mass (if possible) at what angle would the force of static friction and the normal force be equal
  16. S

    Static Equilibrium Pulley Problem

    Homework Statement The attachment above contains the diagram given in the problem M1 = 25kg M2 = 35kg Friction coefficient between M1 and stucture = 0.15 Friction coefficient between M1 and M2 = 0.25 Friction on pulleys and mass on pulleys is negligible. Find the minimum mass M3 for sliding...
  17. E

    Explaining the Difference between Static & Dynamic Friction

    at the beggining of basic mechanics, we learned about friction, moreover we distinguish between static and dynamic friction. there is something quite disturbing: when an object on an inclined rod is static we can say that the static friction is holding it in place. now, whe we push the object up...
  18. hari krishna parigi

    Do electrets have static charge?

    Need some information about electret. Is it possible to charge a metal plate electostatically using electrets. will electrets attract neutral charged things, like glass rod attracting paper pieces after rubbing with wool ?
  19. The black vegetable

    Electromagnetism static charge and forces

    Hi Everyone, I'm trying to justify to myself why |F(a)| > |F(b)| > |F(c)| I think I can see why |F(b)| > |F(c)| due to special relativity case c observed from the charges point of view would observe the charges closer due to lorentz contraction. As the charge is invariant would result in...
  20. I

    Static Electricity: Can You Still Get a Shock Off the Ground?

    A (possibly stupid) static electricity question: Person A is carrying an electrostatic charge. They touch person B, both get a shock. If both persons were off the ground(eg hanging from ropes) ...would they still get a shock?
  21. L

    Newtonian physics word problem static friction

    Homework Statement truck moves at 22,5 m/s On board the truck, behind, is a box. the static friction coefficient for the box, is 0,250 with regard to the friction between truck floor and the box floor. calculate the shortest possible stopping distance, such that the box does not slide at...
  22. L

    Coefficient of Static Friction = tan (angle of incline)

    Homework Statement I am trying to prove that the coefficient of static friction is equal to the tan of the angle of incline. (You can find the proof of this from ) I set the angle of incline as my independent variable and had an angle range from 10 to 37.5 degrees. After setting the slope to...
  23. RoboNerd

    Question about finding static friction coefficient

    Homework Statement Two boxes each weighing 900 N are stacked on a horizontal floor. Box A is on the bottom, box B is on the top. The coefficient of static friction between box a and the floor is 0.3. A worker applies a force of 600 N to box b parallel to the floor, and the stack moves together...
  24. RoboNerd

    Question on elementary statics multiple choice

    Homework Statement Homework Equations sum of torques = 0 The Attempt at a Solution So I tried to put the torques into the equation: Sum torques = mgL - T *sin(theta) * (L-x) = 0. Solving for the T gave me [mgL]/[ (L-x) * sin(theta) ]. This is not an option in the answers. Could anyone...
  25. RoboNerd

    Question about static equilibrium

    1. Homework Statement problem is above Homework Equations sum of torques = I * angular acceleration = 0 for rotational equilibrium The Attempt at a Solution OK, here's what I tried to do. I wrote sigma Fy = Fleft pier up + F secondleftpierup - Fg,beam = 0 I assumed that the two piers have...
  26. A

    Does coefficient of static friction change with angle

    Hi all, I am very confused by this concept. As I searched online, all respondents say that friction decreases as angle increases because normal force decreases. BUT, they don't explain this phenomenon: A block on a ramp is static at certain angle, and after the ramp is raised by a certain...
  27. U

    A simple static equilibrium problem

    Homework Statement Suppose we have a folding ladder, so that when its legs are spread it makes an isosceles triangle. Suppose it has a support that runs parallel to the ground. There is a bucket of paint that rests on top of the ladder, and the mass of the ladder is negligible. Data: The legs...
  28. J

    Equations for bending steel in a car crash?

    I wanted to know what formula's do I need to figure how much force is required to make a dent in a car. I am then placing a bumper guard made up of carbon fiber, and wanted to know what equation do I need to use to figure out how much force is required to make a dent with the carbon fiber bumper...
  29. S

    Question about static friction adjusting itself

    In a situation like this, there are two equilibrium's, For just about to accelerate downwards: mgsinθ - Ffriction - T = 0 For just about to accelerate upwards: T - Ffriction - mgsinθ = 0 Is there a situation where there is no static friction i.e. when mgsinθ = T?
  30. Dietrichw

    Static equilibrium, tension and compression

    Homework Statement The figure below shows a light truss formed from three struts lying in a plane and joined by three smooth hinge pins at their ends. The truss supports a downward force of = 1 330 N applied at the point B. The truss has negligible weight. The piers at A and C are smooth. The...
  31. STEM_STRUGGLES

    Analyzing Forces in a Diving Board System

    Homework Statement There is a diving board held up by two pillars A and B, and there is a diver standing on it's edge. What are the directions of the forces exerted at points A and B? Picture Below: Homework Equations F_NET = 0 T_NET =0 The Attempt at a Solution I thought both A and B were...
  32. RodriRego

    Finding Static Equilibrium: Solving a Rod and Cable System

    Homework Statement Homework Equations Fr (resultante force) = 0 Sum of all forces aplied at the strut = 0 Sum of the torque of all forces = 0 The Attempt at a Solution I started by analysing the torque, since the strut is on static equilibrium and I ended up having C (tension on the cable)...
  33. Biker

    Static Electricity: Why We Get Shocks on Carpet & Door Knobs

    Here is the rub. Most of the online sources and in a kind of statement in my book says that we gain a negative charge when we rub our feet on the carpet. So when we touch a door knob we get a electric shock because the electrons is transferred from us to the door knob However, Shouldn't it be...
  34. D

    I Proving Killing Vector of Static Spacetime - David

    Hello, I am reading through some GR lecture notes and have come across the following: "A spacetime is static if there exists a coordinate chart where: ∂0gμν = 0 g0i = 0 This spacetime admits a Timelike Killing vector X that satisfies: X[α∇βXγ] = 0 " How do I go about proving that this...
  35. S

    Rotational work done by static friction?

    Homework Statement A disk roll without slipping down a incline plane. Identify the forces acting on the disk, explain qualitatively which of these forces do work. Homework Equations The rotational work is given by W=\int \tau_z d\theta (1) , where \tau_z is the component of the torque...
  36. M

    Static structural analysis on a solid sphere?

    Could you perform Static structural analysis on this solid sphere? No contacts to be used. I do not have any specific boundary conditions(unable to apply constraints to a complete solid spherical body) All i know is the pressure that needs to be applied. You could consider a smiley ball on...
  37. S

    Rotational work and forces like static friction and tension

    I have a doubt regarding the definition of rotational work, which is as follows W = \int \tau_z d \theta Where \tau_z is the component of the torque parallel to the axis of rotation z. My doubt concerns the fact that, looking at this definition, it seems that any torque which has an axial...
  38. S

    Static Equilibrium: holding a sign

    Homework Statement You are holding a sign as shown below. The sign (including the horizontal bar it hangs from) has a mass of 2.20 kg and is 40.5 cm wide. The sign is hanging from a 1.03 m tall, 4.46 kg vertical post. The sign is symmetric with a uniform mass distribution as implied by the...
  39. topsquark

    MHB PHP Static Variables: Why Doesn't It Reset?

    The code is supposed to generate 0 1 2 My question is this: If we declare $x = 0 in the function then why doesn't it reset to 0 every time we run the function? -Dan
  40. 0

    Coefficient of static friction between load and incline

    Homework Statement A 1790N force pull a 266kg load up a 17º incline. what is the coefficient of static friction between load and incline. Homework EquationsThe Attempt at a Solution Tried several times on notebook but I haven't seemed to solve the problem.
  41. B

    Calculate the coefficient of static & kinetic friction

    Homework Statement You are trying to slide a sofa across a horizontal floor. The mass of the sofa is 200 kg, and you need to exert a force of 350 N to make it begin to move. a) Calculate the coefficient of static friction between the floor and sofa b) after it starts moving, the sofa reaches a...
  42. E

    Static magnetic field from time-varying electric field

    Hello! In this thread, in this answer, my statement "A time-varying electric field creates a magnetic field which is time-varying itself" was refuted. Because I never observed this before, I would like to discuss about it. As far as I know, Maxwell's equations are valid always together, that...
  43. K

    How to Find Angles in a Static Equilibrium System with Pulleys?

    Homework Statement I have 3 masses (Fα, Fβ & Fg) with 2 pulleys, and a wind variable which is in static equilibrium. I have already calculated the appropriate forces for the 3 masses by multiplying it with 9.81m/s² (gravity). Fwind = 60N Fα = 313.9N Fβ = 619N Fg = 882.9N I'm required to find...
  44. P

    Magnitude of static friction force

    Homework Statement A 500 kg ox runs and speeds up by 3 m/s2, but is held back by a 120 kg plow that is attached to its back. Assuming the coefficient of static friction between the horse's hooves and the soil is 0.73, what is the magnitude of the static friction force the soil exerts on the...
  45. E

    Basic force with static friction problem

    Homework Statement A 70-kg skier is in a tuck position and moving down a 20-degree hill. Air resistance applies a resultant force of 15 N against the movement of the skier. The coefficient of friction between the skis and the snow is 0.09. What is the resultant downhill force acting on the...
  46. D

    How to solve for coefficient of static friction with mass

    Its for my final project. We are doing a sliding a textbook down an *incline plane* and we are expected to find coefficient of static friction without using Newton guage, and we are also now allowed to use kinematics. I just need some infomration on how to do this, like a formula or something in...
  47. A

    Does Kinetic and Static Friction Act Simultaneously on a Moving Body?

    When a body is in motion , does kinetic and static friction act simultaneously
  48. RJLiberator

    Static measurement of Spring constant with error value

    Homework Statement It's been a little while since I did one of these. My question is: We have to use http://phet.colorado.edu/sims/mass-spring-lab/mass-spring-lab_en.html to find the measurement of k, the spring factor using two different methods. For the method I am looking at, is the static...
  49. Biker

    What is the maximum deceleration for two boxes in a car without them falling?

    Homework Statement If you have 2 boxes over each other in a car that is slowing down . The mass of each one of them is 10kg and Us = 0.4 for all surfaces. What is the maximum deceleration that doesn't make the boxes fall? And will it make different if you change the masses of the objects? 3...
  50. R

    What Is the Torque Required to Rotate a Disc Between Two Static Discs?

    Hi everyone This is my first post on the forum. I work in engineering and use this forum to answer questions from time to time. I am looking for confirmation of my understanding of static rotation torque (not something I deal with in day to day work). Imagine 2 identical discs or washers that...
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