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QI 1:-Two vectors are given by А and B. -31+1+ E . Find the angle between A 31-4) and (A)19.3 (B)31.5 (C)82.3 (D)72.5 (E)64.8 Q12:- A worker is to paint the walls Cie dig) of a square room 8.00 ft high and 10.0 ft along each side. What surface area in square meters must she cover?1m3.28ft (A)33.8m2 (B)35.7m (C)29.7m (D)36.8m2 (E)32.7m2 Q13.- A ball is thrown vertcanily upward trom the ground with an initial speed of 12 m/s (A) 1ms- (B2ms1 (C)3ms1 (D)4ms1 (E) 5ms-
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Answer #1

1リ Te Dot Productof A ahdB A- B- AB Cos (11) The Room has wall ThL area of each wall sideメheight. Tita tal surface area= 4,メSider Beight 3.283.2-8 328 3.2-8 -.. 29 , 74 mL Are final ieloy afier Lse ball s actinohwar actual value of vitational acce Ansuex is not moet

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