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poizon [28]
1 year ago
12

A ball is swung in a horizontal circle at a constant speed. Each circle takes 0.85 seconds to complete and the rope is 0.40 m lo

ng. What is the centripetal acceleration?
A
0.19 m/s2

B
1.81 m/s2

C
2.96 m/s2

D
21.86 m/s2
Physics
1 answer:
Nataly [62]1 year ago
3 0

Answer:c

Explanation:

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Answer:

The simplified expression is M  =  \frac{v^2 r}{G}

Explanation:

From the question we are told that  

     M  = \frac{ \frac{m v^2}{r} }{\frac{ mG}{r^2 } }

So simplifying we have

    M  =    \frac{m v^2}{r} *  \frac{r^2 }{ mG }

    M  =  \frac{v^2 r}{G}

Thus the simplified formula is M  =  \frac{v^2 r}{G}

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2 years ago
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Answer:

A title

Explanation:

Because this is middle school.

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What is the magnitude of the force a 1.5 x 10-3 C charge exerts on a 3.2 x 10-4 C charge located 1.5 m away?
sweet [91]
The magnitude of the force<span> a 1.5 x 10-3 C charge exerts on a 3.2 x 10-4 C charge located 1.5 m away is 1920 Newtons. The formula used to solve this problem is:

F = kq1q2/r^2

where:
F = Electric force, Newtons
k = Coulomb's constant, 9x10^9 Nm^2/C^2
q1 = point charge 1, C
q2 = point charge 2, C
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Using direct substitution, the force F is determined to be 1920 Newtons.</span>
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main idea which will change if you turn up a radios volume: wave velocity, intensity, pitch, frequency, wavelength, loudness.
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Loudness is one of answers
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The Americium nucleus, 241 95 Am, decays to a Neptunium nucleus, 237 93 Np, by emitting an alpha particle of mass 4.00260 u and
saveliy_v [14]

Answer:

The mass of Neptunium is 237.054 u.

Explanation:

Given that,

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Let the mass of Neptunium is m.

Since the mass remain same.

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Using formula of mass

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Put the value into the formula

m=241.05682 -4.00260

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Hence, The mass of Neptunium is 237.054 u.

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