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mars1129 [50]
3 years ago
15

Here’s the picture of the problem

Physics
1 answer:
Dennis_Churaev [7]3 years ago
6 0
Answer:C is the answer
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25. How long does it take a child on a swing to complete one swing if her center of gravity is 4.00 m below the pivot?
Lina20 [59]
  • Length=l=4m

\\ \rm\rightarrowtail T=2\pi\sqrt{\dfrac{l}{g}}

\\ \rm\rightarrowtail T=2\pi\sqrt{\dfrac{4}{9.8}}

\\ \rm\rightarrowtail T=2\pi(0.63887)

\\ \rm\rightarrowtail T=1.27774\pi

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4 0
2 years ago
Understanding that if we say something unkind to someone else his or her
OlgaM077 [116]

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Explanation:

6 0
3 years ago
This is physics class, plzzz help ! 86.72 m to cm
Vaselesa [24]

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5 0
3 years ago
You could use an elevator or the stairs to lift a box to tenth floor.which has greater power?
erastova [34]

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7 0
2 years ago
A thin, rectangular sheet of metal has mass M and sides of length a and b. Find the moment of inertia of this sheet about an axi
slega [8]
We divide the thin rectangular sheet in small parts of height b and length dr. All these sheets are parallel to b. The infinitesimal moment of inertia of one of these small parts is
dI =r^2*dm
where dm =M(b*dr)/(ab)
Now we find the moment of inertia by integrating from -a/2 to a/2
The moment of inertia is
I= \int\limits^{-a/2}_{a/2} {r^2*dm} = M \int\limits^{-a/2}_{a/2} r^2(b*dr)/(ab)=(M/a)(r^3/3) (from (-a/2) toI=(M/3a)(a^3/8 +a^3/8)=(Ma^2)/12 (a/2))



4 0
3 years ago
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