First of all, how would you go about to do that? I don't think that is even possible.
Light cannot travel faster than the speed of light, so a bulb traveling at the speed of light is not possible in the laws of physics as we know them. If it were somehow possible, the bulb may emit light, but we cannot definitively predict what would happen under such extreme conditions.
The port speed setting for a modem, controls the speed that the computer communicates with its modem.
It would turn to energy
Yes, speed increases your heart rate. Although many things could happen that could kill you, you would most likely have a heart attack or stroke.
You could be arrested for exceeding the speed limit and public endangerment.
You will be extinct in a wink.
Could be a bad fan motor resistor
Yes, it is possible for a nonzero net force to act on an object without changing its speed. This can happen if the force is acting perpendicular to the direction of motion, resulting in a change in direction but not speed (as in circular motion).
Could be low idle speed setting. Always give plenty of throttle when releasing clutch pedal
This sounds like it could be your speed setting, but in all likelihood, you are not going deep enough with the liner. It could also be a combination of the two. The setting of your contact screw will also play a part in the overall packing ability of your machine.
Yes. Acceleration by definition is a change in speed, direction, or both. If the speed is constant, the direction could still be changing. You can feel a change in direction, therefore you can feel acceleration even if the speed is constant.