Print Periodic Periodic Table Calculator Question 24 of 29 It is generally a goo

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Print Periodic Periodic Table Calculator Question 24 of 29 It is generally a good idea to gain an understanding of the "size" of units. Either using an Internet search, or to the hint panel below, find the official size and masses of the sports bails listed below and calculate their moments of inertia about their center of mass. Rounding your results to the nearest power of 10 categorize each of the sports balls according to the order of magnitude of the moment of that the balls are holiow.) 10 kg m 10 kg m 10 kg m 10 kg- m 10 kg m 1 kg m bowling ball tennis bal soccer bal volleyball golf ba As a physics demonstration, you want a special bowling ball made to demonstrate exactly 1 kg. m2, so that your students can rotate the ball about its center of mass to get a "feel" for how "big" 1 kg. m2 is. The bowling balls most familiar to your students has a weight of 15.6 pounds and have a circumference of 26,3 inches, but do not have a moment of inertia equal to 1 kg. m2. Since the sporting goods manufacturer has no understanding of how "big" 1 kg. m2 is, calculate the diameter of the demo bowiing ball (in inches) it will need to manufacture. Assume that bowling balls are solid, with a constant density Number in Check Answer Next Exit Previous Give Up & View Solution Hint

Explanation / Answer

for demo ball

moment of inertia is I = (2/5)*M*R^2 = 1 kg-m^2

M is the mass of teh ball = 15.6 pounds = 7.07 kg

R = ?

then 1 = (2/5)*7.07*R^2

radius is R = 0.594 m

diameter is d = 2*R = 2*0.594 = 1.188 m

diameter is d = 46.77 inches

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