Answer: The total rotational kinetic energy of the five blades is 10.9J
Explanation: Please see the attachments below
Surface tension is a film made by water and it's polar characteristic. Since water is polar, it tends to stick together. When something tries to break the surface of water, surface tension comes into play. Simply, surface tension is a sort of film that tries to prevent things from breaking the water's surface. An example would be water on a penny that domes instead of breaking or going flat.
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Answer:
The star's luminosity rises above its previous level. Because it is so cool, the surface will be red, and it will be much farther away from the center than it was during the earlier stages of star evolution. Despite its lower surface temperature, the red giant has a large surface area, which makes it very luminous.
The volume increases, but the surface area remains the same
I'll put my answer in the comments but, part of the question is cut off do you mind putting a more readable and not sideways picture?