Sheet 8.pdf - Spring 2017 Physics I Tutorial Problems (week...

This preview shows page 1 - 6 out of 13 pages.

Spring 2017Physics I GroupDr: Ashraf A. Abul-MagdEbrahim SedqyHisham YahiaEmtnan OdaSpring2017Physics ITutorial Problems(week 8)(week
Physics I -Week EightWeek eightFluid Mechanic14.1 Pressure14.2 Variation of Pressure withDepth14.3 Pressure Measurements14.4 Buoyant Forces andArchimedes' Principle14.5 Fluid Dynamics14.6 Bernoulli’s Equation14.7 Other Applications of Fluid Dynamics
Physics I -Week EightObjective Questions:1.Figure OQ14.1 shows aerial views from directly above two dams.Both dams are equally wide (the vertical dimension in the diagram)and equally high (into the page in the diagram). The dam on the leftholds back a very large lake, and the dam on the right holds back anarrow river. Which dam has to be built more strongly? (a) The damon the left (b) the dam on the right (c) both the same (d) cannot bepredictedConceptualQuestions:1.Because atmospheric pressure is about 105 N/m2and the area of a persons chest is about 0.13 m2, theforce of the atmosphere on ones chest is around 13 000 N. In view of this enormous force, why dontour bodies collapse?2.(a) Is the buoyant force a conservative force? (b) Is apotential energy associated with the buoyantforce? (c) Explain your answers to parts (a) and (b).
Physics I -Week Eight3.How would you determine the density of an irregularly shaped rock?s1.A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man andchair is 95.0 kg. If the chair legs are circular and have a radius of 0.500 cm at the bottom, whatpressure does each leg exert on the floor?2.The nucleus of an atom can be modeled as several protons and neutrons closely packed together.Each particle has a mass of 1.67 x 10-27kg and radius on the order of 10-15m. (a) Use this model andthe data provided to estimate the density of the nucleus of an atom. (b) Compare your result withthe density of a material such as iron. What do your result and comparison suggest concerning thestructure of matter?
Physics I -Week Eight3.A 50.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinylfloor covering. The heel on each shoe is circular and has a radius of 0.500 cm. (a) If the womanbalances on one heel, what pressure does she exert on the floor? (b) Should the homeowner beconcerned? Explain your answer4.Estimate the total mass of the Earths atmosphere.(The radius of the Earth is 6.37x 106m, andatmospheric pressure at the surface is 1.013 x105Pa.)5.Calculate the mass of a solid gold rectangular bar that has dimensions of 4.50 cm x 11.0 cm x 26.0cm.

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 13 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Spring
Professor
khaled
Tags
Fluid Dynamics, Pressure measurement, Fundamental physics concepts

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture