6) Ideal incompressible fluid flows through a 4.0-cm-diameter pipe at 1.0 m/s. There is a 2.0 c diameter constriction in the line. What is the speed of the fluid in this constriction? A) 4.0 m/s B) None of the Choices C) 2.0 m/s D) 0.25 m/s E) 0.50 m/s
H = 2.1 Li = 1.0 Na 1.0 K=0.8 Be = 1.5 Mg = 1.2 Ca = 1.0 B=2.0 Al 1.5 Ga 1.6 C=2.5 Si = 1.8 Ge = 1.8 N=3.0 P = 2.1 As = 2.0 O= 3.5 S = 2.5 Se = 2.4 F=4.0 CI = 3.0 Br=2.8 Use the electronegativities above and your knowledge of the shape of 2HCCH2 to determine the molecular polarity of CCHexplaining your answer in detall.
What is the oxygen-oxygen bond order in ozone(O3)? A) 1.0 B) 1.5 C) 2.0 D) 2.5
a. -3m b. -2m c. -1m d. 1m e. 2m Vy is the velocity of a particle moving along the x axis as shown. If x = 1.0 m at t= 1.0 s, what is the position of the particle at t = 6.0 s? V (m/s) 4.0 3.0 2.0 1.0 0 1.0 2.0 3.0 4.0 50 6.0 1.0 2.0
a. 2m/s b. 4m/s c. 7m/s d. 5m/s e. 6 m/s The only force acting on a 1.0-kg object moving along the x axis is shown. If the velocity Vx is +2.0 m/s at t = 0, what is the velocity at t = 4.0 s? F. (N) 16 8 0 +(s) -8
25. .. Two vectors are given by A = 4.0 x-2.0 and B = 1.0 (c) a vector 5.0 ỷ. Whatis (a)A-B, (b) B-A, and such that + B + = 0?
Consider the following diagram. p (atm) 4.0 3.05 2.0 1.0 R — V (L) 1.0 2.0 3.0 4.0 5.0 (a) What is the change in internal energy (in )) for the process represented by the closed path shown above? (b) How much heat is exchanged in 1)? 149 X ] (c) If the path is traversed in the opposite direction, how much heat is exchanged (in )? - 149
E 1.5 m 2.0 m 1.0 m The electric field in a region is given by 8 = a/1b + cxjî where a= 200, b=1.0, and c-2.0 What is the net charge enclosed by the shaded volume shown above? Your answer: OA) -8,8 x 10-10 OB)-70,5 x 10-10 000 OD)-21,2x10-10 OE) 15 x 10-20 Clear answer
1. Formula C,H4O 4000 3500 2H 3H 3H 2H 2H 2H 1.5 2.0 4.5 3.5 3.0 2.5 1.0 PPM 4.0 20es 0*250 T6 61 '8201 LSIT 60 99T 90 01L1 e'SPLT Or'8282 1. Formula C,H4O 4000 3500 2H 3H 3H 2H 2H 2H 1.5 2.0 4.5 3.5 3.0 2.5 1.0 PPM 4.0 20es 0*250 T6 61 '8201 LSIT 60 99T 90 01L1 e'SPLT Or'8282
Which of the following z-scores indicates the most extrem observation a. 4.0 b. 1.0 c. 0.0 d. -1.0 e. -2.9