Timothy is repairing a picture frame. he will need 5 pieces of wood, each measuring foot in length. he is going to cut the 5 pieces from a scrap of wood that measures 4.5 feet.

not enough wood

Step-by-step explanation:

for 5 pieces each measuring 1 foot he needs 5 feet of wood

But he only has 4.5 feet

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.