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OleMash [197]
4 years ago
10

PLEASE HELP

Physics
2 answers:
Gala2k [10]4 years ago
6 0

Answer:

C

Explanation:

Just did on APEX

Ilia_Sergeevich [38]4 years ago
5 0

Answer:

A.

Explanation:

I believe its A because lets say the ice is alone in a jar with nothing inside no water no other ice just be its self. You put that jar inside the freezer, for 18 hours. It's not going to be heaver nor lighter so the obvious answer would be A. because you gained nothing from that ice cube it will just have to stay the same. Sorry if I'm wrong

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What is the maximum value of the electric field in an electromagnetic wave whose average intensity is 4.50 w/m2 ?
Oksi-84 [34.3K]
Average intensity of electromagnetic wave is given by

I= (speed of light*permittivity*sq. electric field)/2

Speed of light = 3x10^8 m/s
Permittivity = 8.85x10^-12

Therefore,
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Answer:

16

Explanation:

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3 years ago
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Suppose that the moment of inertia of a skater with arms out and one leg extended is 3.5 kg⋅m2 and for arms and legs in is 0.80
sergiy2304 [10]

Answer:

1.3  rev/s

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Using conservation of angular momentum

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(0.80) (5.5) = (3.5) w_{o}

w_{o} = 1.3 rev/s

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