Answer:
100 watt
Watt is a unit of power, for the light bulb its produces or consumes 100 watts of power
Answer: the amphoteric line, mental- nonmetal line, metalloid line, staircase, semimetal line. it can be called any of these names
It can't. Waves must have a medium to travel through
The formula without numbers is

do the initial velocity would be
8.1 m/s
and the acceleration would be
2.9 m/s^2