Explosion Definition and 278 Threads

Homework Statement an internal explosion breaks an object, initially at rest, into two pieces, one of which has 1.5 times the mass of the other. If 7500 J were released in the explosion, how much kinetic energy did each piece acquire. Homework Equations mgyi+1/2mvi2=mgyf+1/2mvf2 The...

What are all the given aspects of this? I understand how the reaction happens, but what about it pushes the piston.

Homework Statement A block of mass 8.45 kg in outerspace is moving at 2.47 m/s with no external forces acting on it. After an explosion, the block is split into two parts both having mass equal to half the mass of the original block. The explosion supplies the two masses with an additional...

I'm doing a project for my job, and am currently stuck with a situation that I'm unsure of how to proceed. Note: not homework. The situation is that I have an object of approximately 100kg, which was thrown a horizontal distance of 16m from it's original position by an explosion. We've...

Homework Statement An object with total mass mtotal = 20 kg is sitting at rest when it explodes into three pieces. The first piece with mass m1 = 5 kg moves NW at an angle of θ1 = 20° above the –x axis with a speed of v1 = 30 m/s. A second piece with mass m2 = 4 kg moves SE at an angle of...

Projectile motion...? Homework Statement An artillery shell is fired with an initial velocity of 300 m/s at 55 degrees above the horizontal. It explodes on mountainside 42 s after firing. If x is horizontal and y is vertical, find the (x,y) co-ordinates where shell explodes? Homework...

Since all the auxiliary parts of the bomb are instantly vaporized, there may be little solid waste left. However, if the vapor does not expand fast enough, or cools quickly, liquids and solids may nucleate again and cause a problem. Another point is that any waste exceeding the escape velocity...

So, my welding book has this big ole warning that says this: If oxygen under pressure comes into contact with oil or grease. A violent reaction will occur. When they say "comes into contact" does this mean the outside of the O2 cylinder or just the actual pressurized O2? Second, Why...

Hi All, I'm working on a problem about describing the energy released when a bomb explodes, assuming it releases energy, E, I'm trying to describe the rate at which the radius of the bomb blast wave is expanding. I'm having some difficulty conceiving where to start in connecting the energy...

http://www.nytimes.com/external/readwriteweb/2010/05/31/31readwriteweb-the-coming-data-explosion-13154.html An interesting book: http://research.microsoft.com/en-us/collaboration/fourthparadigm/ So basically, the two main paradigms used to be experiment and theory. Then in the 1950s came...

ok just a couple of questions I have been thinking about.. this is not my area of expertise so help would be greatly appreciated Could anyone tell me how far away from Earth I would have to be before I could shoot a bullet from a gun that would hit the moon. Supposing the bullet could travel at...

Is it possible to direct a nuclear explosion in a particular direction? The idea of a "Nuke Cannon" seems humorously over the top and impractical, but just for arguments sake, could it be done?

Homework Statement a bomb explodes into three pieces of equal mass. two pieces move off at 120 m/s at right angles to each other. how fast is the third mass moving? Homework Equations p = mv pi = pf The Attempt at a Solution I know how to do most of these questions, it's just...

Hello :) When I read about Tsar Bomba, I find that all sites say "The fireball touched the ground, reached nearly as high as the altitude of the release plane and was seen and felt almost 1,000 kilometres (620 mi) from ground zero." Diameter of the fireball is 8 km. Now , there are some...

As topic says Can we see Nuclear Explosion form orbit altitued? or even form space? Just curious.

Correlation between "Snowball Earth" and Cambrian Explosion I know there is a theory that the Earth was once covered in ice that precisely pre-dates the cambrian explosion. is there a leading idea of how snowball Earth allowed for the blossoming of multicellular organisms? Did the ice sheets...

A few years back, you couldn’t open any newspaper, magazine or law review journal without seeing yet another article about the crazy things that were going on in virtual worlds. *Today, not so much. *News of the*closure of Metaplace didn’t even make it very far beyond the usual VW blogs… *So...

Homework Statement A 975-kg two-stage rocket is traveling at a speed of 5.80 x 103 m/s with respect to Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a relative speed (relative to each other) of 2.20 x 103 m/s along the original line...

Homework Statement An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. the heavier fragment slides 8.2m before stopping. how far does the lighter fragment slide? Assume that both fragments have the same coefficient of kinetic...

Homework Statement A 1.0kg physics puck is at rest when a small explosion breaks it into three pieces. A 0.50 kg piece, goes north at 10 m/s, a .3 kg piece goes east at 20 m/s. What is the magnitude of the momentum of the third piece. Homework Equations p = mv Momentum Before =...

Hi, I was wondering about a query on Coulomb's Explosion? Can Coulomb's Explosion occur in macroscopic level? I mean for a large bodies that are visible by naked eyes?

If you have a sphere of metal electrically isolated by a vacuum, and continuously add negative charge to it, the metal will eventually discharge due to field electron emission. This depends primarily on the work function. Take the same situation as above, but continuously remove negative...

OK all since I do not have a physics background I figured I would come to the WWW and search those who did. I am needing some questions answered... here is the badckground info...I work and a Cryogenic plant that has a max of 17000 gallons of Liquid Oxygen and 12000 of liquid nitriogen on hand...

OK all since I do not have a physics background I figured I would come to the WWW and search those who did. I am needing some questions answered... here is the badckground info...I work and a Cryogenic plant that has a max of 17000 gallons of Liquid Oxygen and 12000 of liquid nitriogen on hand...

Hi, Just a quick question. Does anyone know the original reason for discarding the idea of the big bang as an explosion?

Homework Statement A firecracker, initially at rest, explodes into two fragments. The first, of mass 14g, moves in the positive x direction at 48m/s. The second moves at 32m/s. Find the mass and direction of its motion. Homework Equations p=mv The Attempt at a Solution So I...

Homework Statement A body m1 + m2 is split into 2 part m1 and m2 by internal explosion which generate kinetic energy K. If they move in the same line after explosion, show the speed of one part relative to the other part is Square root of ( 2K(m1+m2)/m1m2) Homework Equations The...

Homework Statement During testing of a fireworks device an engineer records that data shown in the table below when the device, initially at rest, explodes under controlled conditions into three components that spread out horizontally. Determine the unknown quantity...

Suppose we set off a nuclear weapon 400 km above the surface of the Earth. See: http://en.wikipedia.org/wiki/Starfish_Prime When the x-rays hit the atmosphere what gets the greatest velocity boost, electrons or ions? Can we assume the averaged velocity of all boosted particles is in...

Homework Statement An object at rest explodes into three pieces. Two of them are equal in mass and break off at an angle of 85.3° to each other, both with a speed of 33.2 m/s. The last piece has 4 times as much mass as each of the other pieces. What is the magnitude of the velocity of the last...

I was wondering if anyone knew what an explosion would look like in a vacuum? Theoretically let's say if something blew up in space. I was just curious because Hollywood sometimes still makes it look like an explosion on Earth but it should not be, right?

Homework Statement A 4.00-kg cannon ball is flying at 18.5 m/s [0º] when it explodes into two fragments. One 2.37-kg fragment (A) goes off at 19.7 m/s [325º]. What will be the velocity of the second fragment (B) immediately after the explosion? Assume that no mass is lost during the explosion...

Can nuclear weapons explosion produce "neutrino pluse"? Can nuclear weapons explosion produce "neutrino pluse"?

Are the temperatures produced from a nuclear reaction special in anyway? If a 20 kiloton nuke is producing hundreds of thousands of degrees at it's center, would the same ballpark be true of 20,000 tons of TNT, which is roughly equal in yield?

I'm a science fiction writer, as yet unpublished. I really like to try to get as much of the science right as I can. I'm working on a story in which an asteroid hits a kilometer long spacecraft that is loaded up with 130 30m long 10m diameter tanks. They hold hydrogen and oxygen (in...

This got me wondering: If vapor can travel down so fast, can it also travel up at the same speed? Can other gases or particles be injected into or dejected from the atmosphere at this speed?

Homework Statement A 20.0–kg particle is shot horizontally with an initial speed v0 = 10 m/s at a height of 100 m above the ground level (see figure). The particle explodes into identical fragments when its velocity makes an angle of 35° below the horizontal. Immediately after the...

hey guys i need some help...why is it safer to be near a wall during an explosion?

Frames from the latest MythBusters episode, an explosion where they fuse some plates together. You can see the phantom flash high above the explosion place. What is it? It appears to be in a right place for a lens flare, but doesn't look like one.

http://www.users.muohio.edu/rakovajf/WTTW%20Kimberlite.pdf"

A projectile of mass M is moving in the +x direction with speed V when it explodes into two fragments: a lighter one having mass M/4 and a heavier one having mass 3M/4. The heavier fragment moves in the -y direction with speed V. What is the speed of the lighter fragment? (Assume there are...

Friday Febury 20th, 2009. NASA's Fermi telescope has spotted an massive and gigantic explosion in space which is detected to be roughly the largest gamma-ray burst ever. The blast put off three to five thousand billion times that of visible light. Scientists believe that the blast occurred...

Homework Statement A 4.2 kg object, initially at rest, "explodes" into 3 objects of equal mass. Two of these are determined to have velocities of equal magnitudes (5.0 m/s) with directions that differ by 90 degrees. How much kinetic energy was released in the explosion? (that is what is the...

Homework Statement An object, with mass 71 kg and speed 23 m/s relative to an observer, explodes into two pieces, one 5 times as massive as the other; the explosion takes place in deep space. The less massive piece stops relative to the observer. How much kinetic energy is added to the system...

Homework Statement The acousitc wave from a sperical explosion is sometimes represented by a function: p = 0 for t < r/c p = B / r * exp [ - (t-r/c) / t0 ] for t > r/c (or equal) a) Does this represent a possible soltion for the wave equation? b) Find the corresponding velocity...

My first post here, so Hello Everyone! I searched the forum for info but unfortunately I couldn't find it. I am in the middle of making nuclear explosion map (google maps based). Can anyone support me with equations for calculating approximate blast radius based on yield? I would like...

So yes that's the question: In a cart explosions (where 2 carts with springs on the back are pushed together and let go) is the kinetic energy conserved? If not why? I can't find it in my textbook or on internet sites (things specifically related to cart explosions anyways) But attempting to...

Have I missed the investment opportunity of years or what? http://money.cnn.com/data/dow30/

[b]1. A projectile of mass 50 kg moving horizontally at 100m/s explodes into three pieces. Two pieces fly off vertically while a third continues horizontally at 150m/s (neglect gravity). What is the kinetic energy of the horizontally moving piece? [b]2. Homework Equations...

sonic boom?? A sonic boom sounds much like an explosion correct? Explain the similarity between the two??