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IRINA_888 [86]
3 years ago
5

2. What is a statement that summarizes a pattern found in nature?

Physics
2 answers:
Rus_ich [418]3 years ago
4 0

Answer:

scientific law is a statement that summarizes a pattern found in nature.

Masteriza [31]3 years ago
3 0

Answer: a scientific law

Explanation:

Scientific law can be define as the statement which is based upon repeated experiments and observations. It describes the aspects of the natural world. It can be useful in describing the observed patterns that are found in nature. It is not an explanatory approach and but can be used to predict the range of natural phenomena.

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An example of an anaerobic exercise is what?
san4es73 [151]

Answer:

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6 0
3 years ago
An object is moving along a straight line, and the uncertainty in its position is 1.90 m.
just olya [345]

Answer:

2.78\times 10^{-35}\ \text{kg m/s}

6.178\times 10^{-34}\ \text{m/s}

0.31\times 10^{-4}\ \text{m/s}

Explanation:

\Delta x = Uncertainty in position = 1.9 m

\Delta p = Uncertainty in momentum

h = Planck's constant = 6.626\times 10^{-34}\ \text{Js}

m = Mass of object

From Heisenberg's uncertainty principle we know

\Delta x\Delta p\geq \dfrac{h}{4\pi}\\\Rightarrow \Delta p\geq \dfrac{h}{4\pi\Delta x}\\\Rightarrow \Delta p\geq \dfrac{6.626\times 10^{-34}}{4\pi\times 1.9}\\\Rightarrow \Delta p\geq 2.78\times 10^{-35}\ \text{kg m/s}

The minimum uncertainty in the momentum of the object is 2.78\times 10^{-35}\ \text{kg m/s}

Golf ball minimum uncertainty in the momentum of the object

m=0.045\ \text{kg}

Uncertainty in velocity is given by

\Delta p\geq m\Delta v\geq 2.78\times 10^{-35}\\\Rightarrow \Delta v\geq \dfrac{2.78\times 10^{-35}}{m}\\\Rightarrow \Delta v\geq \dfrac{2.78\times 10^{-35}}{0.045}\\\Rightarrow \Delta v\geq 6.178\times 10^{-34}\ \text{m/s}

The minimum uncertainty in the object's velocity is 6.178\times 10^{-34}\ \text{m/s}

Electron

m=9.11\times 10^{-31}\ \text{kg}

\Delta v\geq \dfrac{\Delta p}{m}\\\Rightarrow \Delta v\geq \dfrac{2.78\times 10^{-35}}{9.11\times 10^{-31}}\\\Rightarrow \Delta v\geq 0.31\times 10^{-4}\ \text{m/s}

The minimum uncertainty in the object's velocity is 0.31\times 10^{-4}\ \text{m/s}.

6 0
3 years ago
If force is made to act on a smaller area, then the pressure will be ______________
torisob [31]
Pressure=force/area therefore pressure is inversely proportional to the area if the force is constant. As a result the pressure will be greater.
5 0
4 years ago
An artificial satellite orbits Earth at a speed of 7800 m/s and a height of 200 km above Earth’s surface. The satellite experien
stepladder [879]

Answer: less than 9.8 m/s^2 but greater then zero

Explanation:

Gravitation law

8 0
3 years ago
Is the answer 0.055 seconds? (Only problem 13)
Semenov [28]

Answer:

155÷8.5

=18.235294117647

6 0
3 years ago
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