Recent content by Sandman327

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    Identifying the Strongest Base: Comparing NH2-, OH-, Cl-, NH3, and I-

    Homework Statement Which of the following species is the strongest base? A. NH2- B. OH- C. Cl- D. NH3 E. I- Homework Equations The Attempt at a Solution Ok I know that Cl- is a very weak base so I know it is not that one for sure. I want to say that the answer is NH2-...
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    Tangential Acceleration of a Pendulum

    Homework Statement A 2kg pendulum bob on a string 2 meters long is released with a velocity of 1.5 meters/second when the support string makes an angle of 30 degrees with the vertical. What is the tangential acceleration of the bob at the highest point of its motion? The answer was given as...
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    Calculate height given KE and mass

    Homework Statement At sea level a nitrogen molecule in the air has an average translational KE of 6.2x10-21 J. Its mass is 4.7x10-26 kg. If the molecule could shoot straight up without striking other air molecules, how high would it rise? Thanks for any help.Homework Equations I think to...
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    Average force opposing a proton

    Thanks I appreciate your help.
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    Average force opposing a proton

    Thanks so the plan is to solve Vf2 = Vi2 + 2(a)(x) for a and then use that value of a to solve Newton's second law?
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    Average force opposing a proton

    Homework Statement A proton with mass 1.67 X 10-27 kg that has a speed of 5.0 x10[6] m/s passes through a metal film of thickness .010 mm and emerges with a speed of 2.0 x 10[6]m/s. How large an average force opposed its motion through the film? Homework Equations I'm thinking Newtons...