Which of the following statements is true?
a. light energy does not serve any useful purpose.
b. light energy is the same as sound waves.
c. light energy does not require a medium through which to travel.
d. light energy is a form of potential energy only.

the correct answer is c

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this