Answer:
MIDI
Explanation:
MIDI is an acronym that stands for Musical Instrument Digital Interface. It is a standard protocol that helps to connects musical instruments with computers and several hardware devices to communicate. It was invented in the 80's as a way to standardize digital music hardwares.
260 joules is hopefully right.
Answer:
33.7410805301 s
22336.5953109 m
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity = 
s = Displacement
a = Acceleration = 
g = Acceleration due to gravity = 9.81 m/s²

The time taken is 33.7410805301 s

The plane would travel 22336.5953109 m