A solid uniform disk of diameter 3.20 m and mass 42 kg rolls without slipping to the bottom of a hill, starting from rest. If the angular speed of the disk is 4.27 rad/s at the bottom, how high did it start on the hill?

A) 3.14 m B) 4.28 m C) 3.57 m D) 2.68 m


C

Physics & Space Science

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When two elements form a eutectic phase diagram, in the eutectic reaction the atoms of the solid elements _____________.

Fill in the blank(s) with the appropriate word(s).

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In the context of astronomy, a habitable zone is:

A) a region on a planet where conditions are acceptable for life to exist. B) a region around a star where a planet's temperature would permit the existence of liquid water. C) a region on a young planet where amino acids can begin to form deoxyribonucleic acid (DNA) molecules. D) a region around a star where different types of planets can form.

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What is the formula of a compound formed from the ions M2+ and X3-?

a. MX b. M3X2 c. M2X3 d. M6X6

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Why is siltation such a pressing question for dam builders? Explain how you decided on your answer

What will be an ideal response?

Physics & Space Science