Answer:
V is greater
Explanation:
because v intial at that time V final is the that speed which it is going at that time
Battery based heaters use electric resistance heating, which uses a lot of current (electricity) to create the heat.
Answer:
number 10 is the value of acceleration due to gravity.
Answer:
Explanation:
This is a case of interference of sound , akin to YDSE in optics .
Here, like interference dark and bright fringes, region of silence and intense sound will be formed due to destructive and constructive interference respectively.
Here d = distance between two sources = 5 m
D = distance of source and screen = 12m
position of first destructive interference
= λ D /2d
1 = λ 12 /2x 5
λ = 5 / 6 m
frequency = v / λ
= 343 x 6/ 5
= 411.6 Hz