Can be either.
In Scandinavia and Central Europe, right/rear is the normal set-up, but most shops can provide left/rear AKA Moto-style brakes if you ask for it.
Actually, no. It's more difficult for the back brake to stop a bicycle as the bicycle is pulling away from the rear wheel. The front brake stops a bicycle more efficiently because the weight of the bike is pushing forward into the front wheel. But it's important not to rely on only a front brake. The front brake can stop the bike so well that the weight of the bike can shift up and over the front axle creating what is often referred to as an "endo" and will toss the rider over the handlebars.
Because to actuate the brake you pull at the brake lever.
Its all to do with the design of the gearbox and mounting of the back brake. Royal Enfield still chain on the right and Harley Davidson run belts on either side.
a block
the brake back side left side light does not work when brake the RV
Bicycle brakes are usually levers
Friction and leverage.
Because of inertia. Stuff that is moving wants to keep moving. When the bike can't go forward, it'll try to topple forward instead.
Caliper and Disk brakes
Sure you could, if there were any in production. But since there aren't, you can't. A bicycle is simply too light for the advantages of a EM brake to outweigh the added complexity.
Possibly coming from a leaking brake cylinder. Top up fluid and take to a brake shop ASAP.
Well, the engine in a 1974 vw Beetle is in the back of the car. So the brake fluid in front or the back to the left of the right.