HW 1 - 1./1 pointsNotesQuestion: Walker4 15.P.002. What...

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1. –/1 points Notes Question: Walker4 15.P.002. What weight of water is required to fill a  200 -gallon aquarium?   kN 2. –/1 points Notes Question: Walker4 15.P.003. You buy a "gold" ring at a pawn shop. The ring has a mass of  0.0160  g and  a volume of  0.00083  cm 3 . Is the ring solid gold? (Refer to table 15-1 in your  text.)   3. –/2 points Notes Question: Walker4 15.P.005. A cube of metal has a mass of  0.098  kg and measures  3.31  cm on a side.  Calculate the density and identify the metal.   kg/m 3  iron lead     silver gold aluminum 4. –/1 points Notes Question: Walker4 15.P.008. 89 -kg person sits on a 3.7-kg chair. Each leg of the chair makes contact  with the floor in a circle that is  1.3  cm in diameter. Find the pressure  exerted on the floor by each leg of the chair, assuming the weight is evenly  distributed.   Pa 5. –/1 points Notes Question: Walker4 15.P.009. To prevent damage to floors (and to increase friction), a crutch will often  have a rubber tip attached to its end. If the end of the crutch is a circle of  radius  1.4  cm without the tip, and the tip is a circle of radius  2.9  cm, by  what factor does the tip reduce the pressure exerted by the crutch?   
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6. –/1 points Notes Question: Walker4 15.P.010. An inflated basketball has a gauge pressure of  10.6  lb/in 2 . What is the  actual pressure inside the ball?    lb/in 2 7. –/1 points Notes Question: Walker4 15.P.011. Suppose that when you ride on your  8.30 -kg bike the weight of you and the  bike is supported equally by the two tires. If the gauge pressure in the tires  is  78.5  lb/in 2  and the area of contact between each tire and the road is 7.13  cm 2 , what is your weight?    N 8. –/3 points Notes Question: Walker4 15.P.012. The weight of your 
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This note was uploaded on 03/08/2012 for the course PHYS 115 taught by Professor Pedigo during the Spring '08 term at University of Washington.

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HW 1 - 1./1 pointsNotesQuestion: Walker4 15.P.002. What...

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