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aev [14]
3 years ago
13

Two planets have the same surface gravity, but planet b has twice the radius of planet

Physics
1 answer:
nevsk [136]3 years ago
8 0
The formula for the acceleration due to gravity is:

a = Gm/r²
where
G is the universal gravitational constant = 6.6726 x 10⁻¹¹ N-m²/kg²
m is the mass of planet
r is the radius of planet

So, if they have the same a:

m₁/r₁² = m₂/r₂²
So, if m₁ = m and r₂ = 2r₁,
m/r₁² = m₂/(2r₁)²
m₂ = 4m

<em>Thus, the answer is D.</em>
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Answer:

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Explanation:

From the question we are told that

  From the question we are told that

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         The initial linear velocity is  u = 0 m/s

         The time is  t = 0.15s

         The velocity at t is  v = 16 m/s

  Generally average  angular acceleration is mathematically represented as

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        Where w_f is the finial angular velocity which is mathematically evaluated as  

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 and w_o is the initial angular velocity which is zero since initial linear velocity is zero

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A long straight wire has fixed negative charge with a linear charge density of magnitude 4.6 nC/m. The wire is to be enclosed by
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Answer and Explanation:

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