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Sergio039 [100]
3 years ago
7

Using Hooke's law, F s p r i n g = k Δ x , find the distance a spring with an elastic constant of 4 N/cm will stretch if a 2 new

ton force is applied to it.
1/2cm


2 cm


4 cm


8 cm
Chemistry
2 answers:
irakobra [83]3 years ago
6 0

1/2cm

just took the test and this is the right answer

ki77a [65]3 years ago
3 0
I think it is the first option 1/2 cm.
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Predict which of the following metals reacts with hydrochloric acid.
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Answer:

Pb, Cr, Fe

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You have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physics. Y
lbvjy [14]

Answer: 2.58 days

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = ?

t = age of sample  = 6 days

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a) to find the rate constant

6=\frac{2.303}{k}\log\frac{1.0}{0.2}

k=\frac{2.303}{6}\log\frac{1.0}{0.2}

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b) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

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3 0
3 years ago
If a tube is 2.2 meters in length, how long is the the tube in feet ?​
trapecia [35]

Answer:

7.22 feet long

Explanation:

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I hope this is helpful :)

3 0
3 years ago
The C=C bond in 2-cyclohexenone produces an unusually strong signal. Explain using resonance structuresBased on the above resona
frosja888 [35]

Answer:

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8 0
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3 0
3 years ago
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