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adelina 88 [10]
2 years ago
9

PLEASE HELP ON EDGE I WILL GIVE U A BRAINLIST IF U GET IT RIGHT

Physics
1 answer:
quester [9]2 years ago
6 0
It should be chestnut hair.

All boxes should be Ee which is dominant.
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In order to be considered a vector, a quantity must include Magnitude (A) and Direction (D).

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The ratio of carbon-14 to nitrogen-14 is an artifact is 1:3. Given that half-life of carbon-14 is 5730years, how old is the arti
dusya [7]

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9155 years old

Explanation:

We use the following expression for the decay of a substance:

N = N_0\,\,e^{-k*t}

So we first estimate the value of k knowing that the half-life of the C14 is 5730 years:

N = N_0\,\,e^{-k*t}\\N_0/2=N_0\,\,e^{-k*5730}\\1/2 = e^{-k*5730}\\ln(1/2)=-k*5730\\k= 0.00012

so, now we can estimate the age of the artifact by solving for"t" in the equation:

1/3=e^{-0.00012*t}\\ln(1/3)= -0.00012*t\\t=9155. 102

which we can round to 9155 years old.

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3 years ago
What material reduces thermal energy
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Insulation helps to prevent that transfer of heat.

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3 years ago
A stone is projected from the ground with a velocity 14m/s one second later it clears a wall 2 m high. The angle of projection i
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30 degrees

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I WILL MAKE U BRAINLIEST PLEASE ANSWER !!!!!!!!
Nesterboy [21]

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125÷2= 62.5 is your average speed. If the train was resting it's not moving your going nowhere . If the train is traveling at constant speed in a straight line it's speed will increase going through mountains will slow it down. if the train is coming to a braking force its speed will decrease

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