Bill will use stucco that is sold in bags. Each bag contains enough stucco to cover 170ft^2. Assume Bill doesn't have any stucco yet and he can't buy partial bags. How many bags will he need to buy in order to apply stucco to the building?
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Step-by-step explanation:
[tex]Angular momentum is conserved as: τexternal=0
Iiwi=Ifwf
(1 kgm2)w=(2 kgm2)w′⟹w′=2w
K.E=21Iw2
E2E1=I2w22I1w12=(2kgm2)4w2(1kgm2)w2
E1E2=21
Thus K.E will decrease.
[/tex]