Hot Student Stories

# Physics

Eric Morgan

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Rodney Fox

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Timothy Norman

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Tara Andrews

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Jessie Thompson

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Ronald Miller

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Eric Morgan

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Ross Pratt

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Curtis Rhodes

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#### The area of a circular trampoline is 108.94 square feet. What is the radius of the trampoline? Round to the nearest hundredth. A. 10.44 feet B. 5.89 feet C. 34.68 feet D. 3.32 feet

Caroline Campbell

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Kathy Robinson

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James Washington

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Kaitlin Dean

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Jeremy Wood

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Megan Page

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#### Niobium has a density of 8.57 g/cm3 and crystallizes with the body-centered cubic unit cell. Calculate the radius of a niobium atom.

Caroline Campbell

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Samantha Barber

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Whitney Matthews

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Jeremy Wood

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Timothy Norman

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Theresa Perry

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Ashley Howard

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Melissa Norris

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Alexa Spicer

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Craig Stewart

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Ralph Lopez

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#### The wavelength of some green light is 530.0 nm. what is the frequency of this green light?

Jeffrey Rodriguez

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Whitney Matthews

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Jessie Thompson

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Karen Wright

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Zach Chandler

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Dana Keller

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Kyle Mckinney

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Bethany Evans

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Mindee Nelson

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Blair Lewis

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Roger Moore

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Brandon Scott

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Ronald Miller

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Kathy Robinson

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James Washington

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Jodi Brooks

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#### Which statement describes a major drawback of the Bohr model that caused scientists to replace it? A) It worked only for helium and larger atoms. B) It did not identify the distance between an electron and the nucleus. C) It contradicted the Heisenberg uncertainty principle. D) It stated that spectral lines of atoms are similar.

Jeffrey Rodriguez

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Justin Parker

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Timothy Norman

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Samantha Barber

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Donald Ward

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Dana Keller

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Melissa Norris

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