A particle's position is r=(t^2)i + tj. At t=2s, what's its angular velocity about the origin?
Anonymous Quiz
12%
-0.2k rad/s
49%
-0.4k rad/s
32%
0.4k rad/s
7%
0.2k rad/s
Which reacts fastest with CH3I?
Anonymous Quiz
19%
(CH3)3CO- Na+
27%
(CH3)3COH
47%
(CH3)2CHO- Na+
6%
(CH3)2CHOH
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❤2
A body cools from 60°C to 50°C in 10 min. If room temp is 25°C, time to cool to 40°C is:
Anonymous Quiz
17%
10 min
47%
12 min
30%
15 min
6%
8 min
A body cools from 60°C to 50°C in 10 min. If room temp is 25°C, time to cool to 40°C is:
Anonymous Quiz
13%
10 min
56%
>10 min
29%
<10 min
1%
5 min
❤1
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🎉1
Which complex shows linkage isomerism?
Anonymous Quiz
5%
[Co(en)₃]Cl₃
16%
[Cr(NH₃)₆]Cl₃
76%
[Co(NH₃)₅(SCN)]Cl₂
3%
[Co(en)₂(NH₃)₂]Cl₃
❤1
❤1
A disc rolls without slipping. Fraction of total KE that is rotational is?
Anonymous Quiz
18%
1/4
40%
1/3
33%
1/2
8%
2/3
❤1
Which has highest boiling point?
Anonymous Quiz
17%
1-Butanol
43%
2-Butanol
33%
Diethyl ether
8%
Butanal
❤2
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