The bicycle is not a simple machine, there are too many interacting moving parts.
Yes, a CD player is considered a complex machine as it consists of several simple machines such as gears, motors, and laser optics to play the CD.
5
Friction creates heat. Heat could melt machine parts if it becomes too high. That's why many machines use lubricants while they're drilling or shaping metal.
Zero
1
It is not a machine, which by definition must transmit work and motion. The toaster does neither of these. Also machines will have some value of mechanical advantage, which is simply the ratio of force output over force input. There is no mechanical advantage from a toaster.
No, because it has many parts. It is a compound machine. It is just made of some simple machines.
The British do not hate bowling. There are many bowling lawns and bowling alleys .
No, because it has many parts. It is a compound machine. It is just made of some simple machines.
i am not 100% but i think 1,000,782 parts that move but i know alot about aircraft's
i believe 27