A gas stove uses chemical energy.
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C.) Laser. the light from the laser reflects off the shiny surface as the CD rotates
When a red giant has insufficient mass it pretty much sheds its outer layer to leave the center core know as the white dwarf
In 6 secs, the dog covers-
S=vt
8.9*6 = 53.4 m.
In the same time, the cat covers, 53.4-3.8 = 49.6 m.
Thus, speed of the cat, v= s/t,
= 49.6/6 = 8.267 m/s
