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Afina-wow [57]
3 years ago
12

PLEASE HELP!!!!!!!!​

Physics
2 answers:
ivanzaharov [21]3 years ago
6 0

Answer:

the is D

Explanation:

An action-reaction force pair

lianna [129]3 years ago
3 0

Answer:

An action-reaction force pair

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A man pushed the box with a force of 20 N. He doubled his force to 40 N. The box did not
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Answer:

A

Explanation:

if the man doubles his force to 40 and the box was yet to move that means acceleration also doubled so your answer would be A

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AGREE OR DISAGREE: All light can be seen.
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Answer:

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Explanation:

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Consider two carts, of masses m and 2m, at rest on an air track. if you first push one cart for 3 s and then the other for the s
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F = m₁ a₁ = m₂ a₂

if m₁ = m and m₂ = 2m :

F = ma₁ = 2m  a₂ ⇒ a₁ = 2 a₂
 
since v = at + v₀  with t = 3, v₀ = 0 ⇒ v = 3a:

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since p = vm with v₁ = 2v and v₂ = v :

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8 0
3 years ago
A uniform solid sphere has a moment of inertia I about an axis tangent to its surface. What is the moment of inertia of this sph
arsen [322]

Answer:

option E

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given,

I is moment of inertia about an axis tangent to its surface.

moment of inertia about the center of mass

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now, moment of inertia about tangent

I= \dfrac{2}{5}mR^2 + mR^2

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dividing equation (1)/(2)

\dfrac{I_{CM}}{I}= \dfrac{\dfrac{2}{5}mR^2}{\dfrac{7}{5}mR^2}

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the correct answer is option E

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