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alex41 [277]
2 years ago
6

Which statements about radiocarbon dating are true?

Physics
2 answers:
seropon [69]2 years ago
8 0
Radiocarbon saying assume the half life for radioistopes change over time. The half life of C -14 is 5730 years
Reika [66]2 years ago
8 0

both are the correct answers:

B. It's useful for dating some organic (once-living) things.

D. It's useful for dating some materials that are thousands of years old.

You might be interested in
Which statement best explains the speed of light waves as they travel from gas to solid?
igomit [66]

Answer:

Light waves slow down as they travel from gas to solid.

Explanation:

The speed of light is often quoted with reference to a vacuum. Light travels fastest in a vacuum and in a gas.

When light travels through other media such as solids or liquids, the speed of light is decreased due to absorption and scattering of photons by molecules as well as remissions.

Hence the speed of light decreases from gas to solid.

8 0
3 years ago
Que es la expansión del universo?
anastassius [24]

Answer:

La expansión no es más que el incremento con el tiempo de la distancia entre cualquier par de galaxias lejanas. Se suele utilizar para representar este hecho la analogía de un globo donde hemos pintado una serie de puntos a modo de galaxias.

Explanation:

3 0
2 years ago
Carbon dioxide in the blood is removed from the body through the A. kidneys B. lungs C. mouth D. skin​
natka813 [3]

Answer:

<h2>C) Mouth</h2>

Explanation:

<h2>When we inhale air, it contains oxygen. The lungs take in oxygen and the heart and the other body parts use it.</h2><h2>Carbon dioxide is removed from the blood mouth when we exhale.</h2>
8 0
2 years ago
How do you disseminate a car if you rub it with rubber
natta225 [31]
I have honestly never read anything about a car being disseminated,
or any instructions on how to do it, or any of the theory behind it.
5 0
3 years ago
A rock is dropped from a sea cliff and hits the water 3.2s later. How high is the cliff? How long would it take sound to travel
Kruka [31]
<span>A rock is dropped from a sea cliff and hits the water 3.2s later. How high is the cliff?

t = sqrt(2y/g)
3.2 = sqrt(2y/9.81)
y = 50.23 m

</span><span>How long would it take sound to travel the same distance?
t = 50.23 / </span><span>343 m/s
t = 0.15 s

</span><span>How long would it take light to travel this distance? 
t = 50.23 / </span><span>299 792 458 m / s
t = 1.68x10^-7 s</span>
4 0
2 years ago
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