Lectric light patent's for
ne of th
b Commissioned
also
B Genius
research and experiment
ii) Someone possessing
extraordinary intelligence
ii) Officially charged someone to do
something
iv) Someone who sells his service
without a long time contract
v) To be attended to
d Inquisitive
e Fascinated
f Laboratory
15x1=5]
or the following questions.

Physics make-up packetname_cle14. an observer hears a sound with a frequency of 400 hz. if the speed of sound is 340 m/s,what is the wavelength of the sound? a. 0.85 mb. 1.2 mc. 2.75 m13.6 m15. as sound travels from steel into air, its speed decreases. if the frequency of the wavedoesn't change, what happens to its wavelength? a. it increases(b) it decreasesc. it remains the samed. there is not enough information given

Iwill give brainliest if you answer right : )

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?