1:50 Exam II Key Spring 2018 (There was a change to Lavender #9 about 12:30 on 3/9.)

Green, v1 Question White, v2 Lavender, v3
6 pts each unless noted 6 pts each unless noted 6 pts each unless noted
D 1 E C
C 2 E A
A 3 B C
D 4 A A OR E
C OR E 5 D (E=3 PTS) D
A 6 B OR D A
E 7 D = 4 PTS C = 4 PTS
A = 4 PTS 8 A (C=3 PTS) E
D 9 B E
D 10 B OR E B (D=3 PTS)
A OR E 11 D D (C=3 PTS)
C (A=3 PTS) 12 B C
A (B=3 PTS) 13 B C OR E
A 14 E A
B 15 D E

TOTAL MULTIPLE CHOICE POINTS = (14 x 6) + (1 x 4) = 88 PTS
It will be easier to count the points you earned on each question.
Your score = ( # of 6pt questions totally correct x 6) + (4pt if you got the 4-pt question) + partial credit

SHORT ANSWER 12 pts total. A complete solution and point allocation will be posted in the glass cases outside room 123 by Thursday 1:30pm.Note: the actual instantaneous rates will differ a bit based on your tangent line. Average Rates should be pretty close, but will also vary.

Green v1 White, v2 Lavender, v3
2 pt rate = 1/2 [B]/t rate = -1/2 [A]/t rate = - 1/4[B2C]/t
2 pt draw tangent, use 2 pts from tangent draw tangent, use 2 pts from tangent draw tangent, use 2 pts from tangent
4 pt instantaneous rate about 3.3 E-3 M/hr instantaneous rate about 3.0 E-4 M/s instantaneous rate about 4.7 E-4 M/s
4 pt

average rate from 4 To 8 Hrs
about 5.0 E-4 M/hr

average rate from 100 - 300 sec
about 1.1 E-4 M/s
average rate from 0 to 200 sec
about 2.9 E-4 M/s