Answer:
90 J
Explanation:
Change in potential energy when the spring is stretched
ΔU = ∫[(F) dx]................... Equation 1
Where F = 40x-6x²
Substitute into equation 1
ΔU = ∫[40x-6x²]
ΔU = [40x²/2 + 6x³/3 +C]
ΔU = [20x²+2x³ +C]
If the spring is stretch from x = 0m to x = 2m
ΔU = [20×2²+2×2³+C]-[20×0²+2×0³+C]
ΔU = [80+16+C]-[C]
ΔU = 90 J.
Hence the change in potential energy of the spring = 90 J
Answer:
the question is not complete but some parts of a wave include crest and trough
50 μm = 5 × 10⁻⁵ m in diameter
<h3>Steps</h3>
1μm = 1 x m
<h3>Given</h3>
1μm = 1 x m
50μm = 50 x m
50μm = 50 x 10 x
50μm = 5 x m
<h3>Conclusion</h3>
A human hair is approximately 50 μm = 5 × 10⁻⁵ m in diameter
<h3>How big is a human hair on average?</h3>
between 17 and 181 micrometers
The typical diameter of human hair can range from 17 micrometers to 181 micrometers, according to research. Using 50 micrometers as an average figure for its diameter, this translates to 50,000 nanometers.
<h3>What is a human hair's diameter in inches?</h3>
The finest hair is flaxen, with a diameter ranging from 1/1500 to 1/500 of an inch. the coarsest hair is black, measuring between 1/450 and 1/140 of an inch.
learn more about human hair diameter here
<u>brainly.com/question/13147893</u>
#SPJ4
The frequency of the sound waves determine their pitch.
Answer:
The periodic table illustrate some of the elements from Hydrogen to Calcium