Wine bottles are stored tilted downward so that a. the corks are in contact with the wine and won't dry out. b. the maximum number of bottles can be stored together. c. sediment can collect toward the bottom of the bottle. d. the bottles will retain the ideal serving temperature.

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i do not get the question.

ek = (m.v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) v2/2

ek = (200 + 250) 2,32/2 = 450*5,29/2 = 1190,25 j

by: nicholas dooley