True / False: All elements will burn a particular color, sometimes with hints of other colors showing.
1 answer:
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Answer:
The sound travels at
Option: c
Explanation:
Unknown source plays of middle C (fs) = 262 Hz
The sound wave from this source have to travel to raise the pitch to C sharp is (fd) = 272 Hz
Substitute the given values in the formula,
Therefore, The sound travels at
Answer:
H=10.93 m
Explanation:
Given that
h'= 0.75 m
r= 1.5 m
ω = 3 rev/s
ω = 3 ₓ 2 π rad/s
ω = 6 π rad/s
Speed of the ball when it releases from the rope,V.
V= ω x r
V= 6 π x 0.75
V=14.13 m/s
We know that acceleration due to gravity always in downward direction.
The final speed will be zero
h = 10.18 m
So the height from the ground,H = h' + h
H= 10.18 + 0.75 m =10.93 m
H=10.93 m