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alekssr [168]
3 years ago
13

Which of the following best explains why snow predictions by meteorologists are sometimes incorrect?

Physics
1 answer:
den301095 [7]3 years ago
6 0

Answer:

C. Interference from the sun causes data to be collected inaccurately.

Explanation:

Snow predictions by meteorologists are sometimes incorrect because from the sun causes data to be collected inaccurately.

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Explain why a book placed on a table does not move?
kifflom [539]

Answer:

The force that the book exerts down on the table is equal to the force the table exerts upward.

Explanation:

I am 100% positive. That results in balanced forces which is why it does not move. If you did want it to move, you would apply unbalanced forces.

4 0
3 years ago
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A(n) _____ particle is a particle that contains two protons, two neutrons, and has a 2 charge.
Oksanka [162]
<span>A(n) alpha particle is a particle that contains two protons, two neutrons, and has a 2 charge.
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b. alpha
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3 years ago
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When drawing a Bohr model for an element that has 16 electrons, how many electrons would be placed in the third energy level?
lubasha [3.4K]
There would be 6 electrons placed on the third energy level.
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3 years ago
An aluminum cylinder with a radius of 2.7 cm and a height of 67 cm is used as one leg of a workbench. The workbench pushes down
soldier1979 [14.2K]

Answer:

1.9\times 10^{-4}

1.2\times 10^{-4}\ m

Explanation:

r = Radius = 2.7 cm

F = Force = 3.2\times 10^4\ N

A = Area = \pi r^2

\sigma = Stress = \frac{F}{A}

E = Young's modulus = 7\times 10^{10}\ Pa

\epsilon = Strain

L_0 = Original length = 67 cm

\Delta L = Change in length

Young's modulus is given by

E=\frac{\sigma}{\epsilon}\\\Rightarrow \epsilon=\frac{\sigma}{E}\\\Rightarrow \epsilon=\frac{\frac{3.2\times 10^4}{\pi 0.027^2}}{7\times 10^{10}}\\\Rightarrow \epsilon=0.0001996=1.9\times 10^{-4}

Strain is 1.9\times 10^{-4}

Strain is given by

\epsilon=\frac{\Delta L}{L_0}\\\Rightarrow \Delta L=\epsilon\times L_0\\\Rightarrow \Delta L=1.9\times 10^{-4}\times 0.67\\\Rightarrow \Delta L=0.0001273\\\Rightarrow \Delta L=1.2\times 10^{-4}\ m

The cylinder height decreases by 1.2\times 10^{-4}\ m

3 0
3 years ago
Answer all these questions
Kazeer [188]

Answer:

mechanical waves,

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the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.

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If the amplitude increases the volume increases and vice versa.

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The type of medium affects a sound wave as sound travels with the help of the vibration in particles.

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The higher the frequency, the shorter the wavelength.

Explanation:

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3 years ago
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