Answer
Given,
Sound Power, P = 600 W
a) Intensity of sound,
r = 5 m
we know,
I = 1.91 W/m²
b) Sound intensity
I₀ = 10⁻¹²
c) Sound experienced by the Phil
β₁ = 123 - 23 = 100 \ dB
distance from the sound
again using sound intensity formula
where, I = P/A
r = 69.09 m
Distance where Phil will experience same sound intensity without earplug is equal to r = 69.09 m
Answer:
Line 1: the spacing is even the whole time
Line 2: the spacing increases over time
Line 3: the spacing decreases over time
hope this helps!
Answer:
What is the definition magnitude?
Magnitude (mathematics), a measure of the size of a mathematical object.
xXxAnimexXx
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6b: impulse is change in momentum. Change in momentum p=m[v(final)-v(initial). Final velocity is zero and initial velocity is the one you calculated before impact: -15.7 since it’s going down. Now plug in numbers and you get 78.5 in the upward direction.
6c: change in momentum p=Ft. we already calculated change in momentum. So plug it into equation and solve for t. 78.5/655= 0.119 s
Apply the same idea for question 7. Hope this helped
Answer:
B
Explanation:
the Halogen families have 7 valence electrons
