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ludmilkaskok [199]
3 years ago
6

PLEASE HELP ME ANSWER THIS!

Physics
1 answer:
dusya [7]3 years ago
5 0
This is biology,
and molecules will move from left to right.
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A person lowers a bucket into a well by turning the hand crank, as the drawing illustrates. The crank handle moves with a consta
dimulka [17.4K]

Answer:

0.453 m/s

Explanation:

Assuming the handle has diameter of 0.4 m while inner part diameter is 0.1 m then the circumference of outer part is \pi d_h where d is diameter and subscript h denote handle. By substituting 0.4 for the handle's diameter then cirxumference of outer part is \pi\times 0.4\approx 1.256 m

The rate of rotation will then be 1.81/1.256=1.441 rev/s

Similarly, circumference of inner part will be \pi d_i where subscript i represent inner. Substituting 0.1 for inner diameter then

\pi\times 0.1\approx 0.3142 m

The rate of rotation found for outer handle applies for inner hence speed will be 0.3142*1.441=0.453 m/s

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2 years ago
What element is formed in the following nuclear reaction
MissTica

Answer:

Oxygen or more precisely, the O-15 isotope.

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25. Explain why the speed of sound is faster in solids than in gases. Include two other factors Chapter 17 says the speed of sou
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In solids, particles or atom are very closely arranged compared to gasses. When these particles are arranged in such proximity, vibrations from sound are very easily transmitted from one particle to another in the solid. Hence, the sound vibrations can travel through the solid medium more quickly than through a gas medium.
Speed of sound also depends on its frequency and the wavelength.
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Two point charges are separated by a distance of 1 meter. How much would the force change if one charge was 4x larger?
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the force would increase 4 times more

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c

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