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Yakvenalex [24]
3 years ago
12

7. What is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second?

Physics
1 answer:
Anestetic [448]3 years ago
4 0

Answer:

6j

Explanation:

3×2=6

j=6

if you multiply 3 by 2 then you get six so then its 6j

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Find the direction and magnitude of Ftot, the total force exerted on her by the others, given that the magnitudes F1 and F2 are
Mars2501 [29]

Answer:

 θ = 36°

Explanation:

given,

F₁ = 22.8 N

F₂ = 16.6 N

magnitude of force = ?

direction of force = ?

F = \sqrt{F_1^2 + F_2^2}

F = \sqrt{22.8^2 + 16.6^2}

F = \sqrt{795.4}

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direction

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5 0
3 years ago
Determine the amount of time for polonium-210 to decay to one fourth its original quantity. The half-life of polonium-210 is 138
Tju [1.3M]

Answer:

276 days

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So,

2 half lives = 276 days

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What does it mean to work out your core
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