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Sergeeva-Olga [200]
2 years ago
7

Solids , liquids are the three different states of matter However , they show some similarities of their properties

Chemistry
1 answer:
frozen [14]2 years ago
6 0

Answer:

1 may is the answer for the question

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An animal skeleton has a carbon-14 decay rate of 13.1 disintegrations per minute per gram of carbon. When did the animal die? (A
Olenka [21]

Answer:

1034 yrs

Explanation:

The equation to use in this question is:

t = -2.303/k log (A/A₀) where

A=    present number of disintegrations

A₀ =  intial number of disintegrations

k =  decay constant

The decay constant we will obtain it from the given hal-life:

k: 0.693/t₁/₂,        t₁/₂ = half-life   ⇒

k: 0.693 / 5730 y =  1.209 x 10⁻⁴ /y⁻¹

t = - 2.303 / 1.209 x 10⁻⁴ /y⁻¹ x log (13.1/15.3) =  1034 yrs

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3 years ago
Imagine a moving boat making waves in the middle of a pool of water. Also, imagine two observers, one behind the boat and one in
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The person who is behind the boat will see much powerful and bigger waves than the person who is in front of the boat. This phenomenon is caused by the Doppler effect which describes the changes in the observed frequency of a wave whenever there is relative motion between the wave source and the observer.
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3 years ago
What causes an ionic bond to form?<br><br>Look at the picture above
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Attraction between a cation in one element and an anion in the other element
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based on the article what are some of the advantages that can be given by radio frequency and microwaves​
bonufazy [111]

Answer:

higher data rates are

Explanation:

transmitted

as the bandwidth

is more

more antenna gain is possible

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3 years ago
Medical diagnosis and ______ are common uses of radioactive elements in health care.
KengaRu [80]
<span>The half-life of Carbon 14 and radionuclides are used to estimate the absolute (versus relative) age of pre-history items </span>
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