The sphere chair is like a large ball and is generally quite comfortable to sit in. These chairs are generally available in a price-reduction outlet. They are also easily found on many websites.
Two points. These may coincide if the line is a tangent to the sphere.
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Aqua Sphere goggles can be purchased online at least from Aqua Sphere website, Amazon, and eBay. They may also be available in local stores that specialize in swimming gear.
We live on a sphere. Calculating 'shortest' distance on the sphere is not a simple trig problem, you may need spherical trig.
a sphere/ball or neither. it may be nothing
A lean back chair can be purchased online. Another place to buy a lean back chair would be your local furniture store. You may even get lucky enough to find one at your local Walmart.
A local mall may have a furniture store that can provide you one or a lead to another source. A local medical supply company may also be a source for a lower price chair that works for specific ailments.
The problem with this scenario is that it is extremely difficult to find an exact match to the broken chair leg so there could be some problems here. You may have to settle for something that looks close enough to what you have.
It really depends how uncomfortable you are in the chair and how much you are willing to spend. If you really want to save a bit of money by just getting better padding, feel free to do so. Although padding a chair may not save you much money at all.
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Two points. These may coincide if the line is a tangent to the sphere.
You can buy cheap student chair several places. Look for sales at stores like Best Buy, Staples, or Office Max. You may find them at furniture stores when they have sales. Yard sales or places like craigslist might have them for a very cheap price.
A stockbroker can help individual investor buy stock but this may be a costly alternative. There are may online sites that allow individuals to purchase online with aid.
A geriatric chair, also known as a Geri chair may flip over backwards if they are not leveled out right with weight. By this I mean if the weight sitting in the chair is not leveled out forward to backward and the position of the chair placed where the persons feet level out their top body, the chair may flip over.
In general terms, a chair in Antarctica is called a chair -- in English. It may be known by another term in other languages.
It may be both
The answer depends on their relative masses and elasticity. Some of the kinetic energy of the first sphere will be lost in sound (the bang), some will be absorbed by the elasticity of the two spheres. If there is any energy left over, the second sphere will begin to move in the direction that the first one was moving in. Finally, depending the first sphere may continue moving in the direction in which it was moving, it may come to a stop or it may reverse its direction of motion.