A car is heading due East at a speed of 10 m s^-1. A bird is flying due North at a speed of 4 m s^-1
as shown below.

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

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

c) both a and b.

answerdmitry mendeleyev made a workable classification of the elements