In most situations no it cannot. I would check with who you bought the stick/blade from and ask their opinion.
A replacement blade can be put into a tapered shaft as long as the blade has a tapered hosel. A standard hosel blade will not fit into a tapered shaft. The tapered shaft must also actually be a shaft and not a recently broken one-piece stick. Some players try to cut broken blades off of one-piece sticks and then think they can replace the blade in the remaining shaft. This can work in principle but only at the expense of the natural performance of the stick. It is generally not recommended.
Sure it'll fit, but it will also come flying out after the first shot you take. Either that or destroy your stick because the tapered blade didn't fit so snugly into your non-tapered shaft.
Nobody knows. Buy the new lawn mower. You will save your time and nerves...
On the hockey stick, you have the shaft (the part you hold), and the blade (the part that touches the ice). In the blade, you have the Heel, which is the part connected to the shaft. Then you have the toe, which is the tip of the blade, or the end which does not connect to the shaft.
The blade will have glue on it when you purchase it. Heat the end of the blade that goes into the shaft, preferably with a heat gun, until the glue softens.If you dont have a heat gun, you can use a torch. Lightly heat the inside of the shaft as well, and then push the blade down into the shaft, with the butt end of the shaft on the floor. Avoid putting too much heat to the shaft, as it could damage the shaft.
yes
you will need a tapered blade preferably a Dolomite blade
replacing a blade takes a lot of practice and the right tools so unless you want to bugger up your stick, it would be a good idea to take it to a shop and get it done for a couple bucks(plus the cost of a blade)...if you want to do it on your own you'll need the right glue and a torch. the amount of heat depends if you have a composite shaft or (unlikely) an aluminum one. using the torch keep the flame visible(orange or red or whatever) and roast the end of the shaft like a hotdog. constantly move it right to left while rotating slowly. check every couple of seconds by trying to pull out the blade. once out put some glue in thin strips on all 4 sides of the blade and a little inside the shaft. heat the glue on the blade a little and shove that thing up there
Yes
the curve from the shaft to the tip of the blade
yes