What is not a wave of the eletromagnetic spectrum

Sound waves, shock waves, waves of nausea, slinky waves, seismic (earthquake) waves, ocean waves, and bye-bye waves are not electromagnetic waves.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.