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Natalka [10]
3 years ago
10

Which situation below most likely causes a theory to change?

Physics
1 answer:
Sergio039 [100]3 years ago
5 0

Answer:

A new technology is invented that allows for new experimentation.

Explanation:

This should be the best situation because new technology helps scientists make more accurate and precise experiments, usually giving changes to the old experiments, and the discovery of newer parameters that could not have been found in the old experiment.

So new technology, more accurate and precise experiments, more parameters and conditions have been found, giving scientists a deeper understanding of what is happening, therefore giving a theory a high probability to change.

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According to the graph of displacement vs. time, what is the object's displacement at time = 60 s?
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The straight line that is obtained, intercept it on the y-axis and the value of displacement will obtained.

Explanation:

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2 years ago
Calculate the heat energy released when 13.3 g of liquid mercury at 25.00 C is converted to solid mercury at its melting point.C
dmitriy555 [2]

Answer:

-270.321012\ J

Explanation:

C_v = Heat capacity of Hg = 28 J/mol

\Delta T = Change in temperature = (234.32-(273.15+25))

\Delta H_{f} = Enthalpy of fusion = 2.29 kJ/mol

The number of moles is given by

n=13.3\times \dfrac{1}{200.59}\\\Rightarrow n=0.0663\ molHg

Heat is given by

Q_1=nC_v\Delta T\\\Rightarrow Q_1=0.0663\times 28\times (234.32-(273.15+25))\\\Rightarrow Q_1=-118.494012\ J

Heat released is given by

Q_2=-n\Delta H_{f}\\\Rightarrow Q_2=-0.0663\times 2.29\times 10^3\\\Rightarrow Q_2=-151.827\ J

Total heat is given by

Q=Q_1+Q_2\\\Rightarrow Q=-118.494012+(-151.827)\\\Rightarrow Q=-270.321012\ J

The total heat released is -270.321012\ J

4 0
3 years ago
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Momentum is mass times velocity of the object

p = m • v

p = (7700 kg)(14 m/s)

p = 107809 kg m/s

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3 years ago
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