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Olin [163]
2 years ago
11

The particles of a substance stay close together but slide past one another as they move when thermal energy is added to the sub

stances particles start move independently of one another what change in state has occurred
Its liquid to gas

A. Liquid to gas

B. Solid to liquid

C. Solid to gas

D. Liquid solid solid
Physics
1 answer:
Katen [24]2 years ago
6 0

Answer: A liquid to gas

Explanation: I just got it wrong :(

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The half-life of the radioactive isotope Carbon-14 is about 5730 years. Find N in terms of t. The amount of a radioactive elemen
Fudgin [204]

The complete queston is The amount of a radioactive element A at time t is given by the formula

A(t) = A₀e^kt

Answer:  A(t) =N e^( -1.2 X 10^-4t)

Explanation:

Given

Half life =  5730 years.

A(t) =A₀e ^kt

such that

A₀/ 2 =A₀e ^kt

Dividing both sides by A₀

1/2 = e ^kt

1/2 = e ^k(5730)

1/2 = e^5730K

In 1/2 =  5730K

k = 1n1/2 / 5730

k = 1n0.5 / 5730

K= -0.00012 = 1.2 X 10^-4

So that expressing   N in terms of t, we have

A(t) =A₀e ^kt

A₀ = N

A(t) =N e^ -1.2 X 10^-4t

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3 years ago
True or False!?
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5 0
2 years ago
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