This preview has intentionally blurred parts. Sign up to view the full document

View Full Document

Unformatted Document Excerpt

hoe (wh4655) extra c redit 01- - Turner- - (58220) 1 This print-out should have 9 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points When an object falls through air, there is a drag force ( with dimension M L / T 2 ) that depends on the product of the surface area of the object and the square of its velocity; i.e. , F air = C A v 2 , where C is a constant. What is the dimension for constant C ? 1. [ C ] = M T L 2 2. [ C ] = T L 2 M 3. [ C ] = T L M 4. [ C ] = M L 3 5. [ C ] = M L 2 6. [ C ] = T 2 L 2 M 7. [ C ] = M T 2 L 2 8. [ C ] = T 2 L M 9. [ C ] = M T 10. [ C ] = T M 002 10.0 points A cylinder, 16 cm long and 4 cm in radius, is made of two different metals bonded end-to- end to make a single bar. The densities are 4 . 6 g / cm 3 and 6 g / cm 3 . 1 6 c m 4 cm , radius What length of the lighter-density part of the bar is needed if the total mass is 4375 g?... View Full Document

End of Preview

Sign up now to access the rest of the document