Final answer:
The true height capacity of a rolling scaffold engineered to 125 feet cannot be determined without specific regulations and engineering details, but it is typically subject to safety restrictions. High-voltage wires are held up by insulators but are not wrapped in insulating material. The force needed to push a box up a ramp is not solely determined by the ramp's height and length.
Step-by-step explanation:
Regarding the question of whether a rolling scaffold designed by a registered professional engineer can be built as high as 125 feet, there are practical and regulatory factors that need to be considered. However, without specific safety regulations and engineering details being addressed in the question, a definitive answer cannot be provided. In practice, scaffolding commonly adheres to certain height-to-base width ratios for stability purposes, and very tall structures may require additional supports or design considerations. Safety regulations often limit the maximum permissible height of scaffolding without special provisions.
For the subsequent question, an engineer designing structural supports for tall buildings would need to consider many variables, but the change in the value of g (acceleration due to gravity) is negligible over the height of a building and typically does not affect the structural support design significantly. The value of g decreases with distance from the Earth's center, but the difference over the height of a building is extremely small.
Regarding the statement about high-voltage wires, it is false that these wires are wrapped in an insulating material. They are, indeed, held aloft by insulating connectors, but the wires themselves are not insulated, as the air around them acts as an insulator.
The claim that pushing a box up a ramp with a force of exactly 100 N due to the ramp's dimensions is false. The force required to push the box up the ramp would also depend on other factors such as friction and the angle of the ramp.