Recent content by chrom68

I understand that the soft spring doesn't become any harder therefore shouldn't the overall stiffness still be greater than K1 (by just a small amount)? Surely adding a stiffer spring in series wouldn't make the stiffness weaker overall.

I have two springs arranged in series (remember circuit diagrams from physics class!). One has a low stiffness constant (K1 = 5) and the other connected to it has a much higher contant (K2 = 100). According to the equation (as used in wikipedia)...

If each wave consists of particles, are the directions of their reflection in someway related?

After making a quick sketch i agree that there is a convex disc moving back towards the source of the spherical waves, however its still unclear where the apparent source of the ones reflected back come from. I believe its the centre of the smaller sphere object, Bob thinks 2R+r. Its tricky...

Additionally, do the waves reflect off the object sphere as rays or as waves?

I'm struggling to picture the reflected rays, because shouldn't they reflect off the spherical object as the spherical waves they approached at? with the difference being that the reflected spherical waves now have a new (imaginary) point source. If this is correct shouldn't the centre of the...

I have some questions regarding the reflective properties of sound waves... If a spherically propogating wave encounters a plane, the reflection is similar to a light ray, shoots off at the critical angle it approached at, with a new 'image' centre. If the spherical waves encounter another...

Given a wave that begins at a point source that travels outward spherically, i know that for a 1D wave (from the solution of the wave equation) the amplitude at a given radius and time from the point source is: 1) A(r,t) = (1/r)*A(0)*sin(kr-wt) (or is this cosine because we take the real part...

I've narrowed down the problem to looking for the closest point on the cone, to the sphere's centre (most likely a perpendicular distance away). The sphere's centre could be inside or outside the cone, hence the radius is the key to knowing whether there is an intersection or not. I've performed...

I am looking to test detect if a cone (described by an apex, angle theta and axis) and a sphere (defined by a sphere centre and a radius) intersect. Please see here for a complete description (because i can't post the code here)...