Ok, the last two days I have seen what seems like 2 blatent mistakes on the EK daily quiz and I am wondering if I am truely going mad or if the daily quiz is full of ****.
First:
The last passage on VR, the one about aparteid in south africa and how it was so wonderful and made the south african economy boom. The one where the author basically blamed all the problems of south africa on the repeal of aparteid.
Question: What is the author's opinion of the (name of law that segregated where black and whites could live)?
A. denounce it
B. Ambivalent about it
C. Neutral
D. Condone it
Obviously from the main idea and the tone of the passage the author likes aparteid and thus would condone it.
I would be willing to bet my life on "d" being correct.
Answer: A, condemns it, WTF!
reasoning: The author dosn't talk at all about how aparteid disenfranchised blacks in south africa but only talks about the strong economy and whites.
Am I insane or does the fact that he talks only positively about aparteid and dosn't mention disenfranchisement of blacks mean the author condones it!
Second, today's physics problem.
A 3000 watt motor pulls 350 kg weight up a mine shaft for 30 seconds at constant velocity.
Question: If the system were changed so that only a 100 kg weight had to be pulled in 30 seconds what power motor is needed then?
A. 670 w
B. 870 w
C. 1300 w
D. 1500 w
I set the ratio of 350/3000=100=x and solved to get slighty under 1000 w, (realized that doing that in my head would be faster but still got answer B).
Answer: A, 670 w
reasoning: the shaft is 20 m tall so find work by F*D = 100 kg*10= 1000 N* 20=20,000 J / 30 seconds= slightly less than 700 w.
BUT at no time does the passage say the shaft is 20 meters high!
So I checked maybe you had to calculate the height from the info in the passage.
P= FV
so V= P/F
3000 watts/3500 N=.87 m/s velocity *30 seconds=about 26 meters!
26 meters*1000 N= 26,000 J/30 seconds= 2600/3= just under 900 watts! THAT IS ANSWER B!
Useing their own logic I got the same answer!
By the way only 11% of people got that answer right!
So am I going insane or is the EK daily mcat quiz full of errors?
First:
The last passage on VR, the one about aparteid in south africa and how it was so wonderful and made the south african economy boom. The one where the author basically blamed all the problems of south africa on the repeal of aparteid.
Question: What is the author's opinion of the (name of law that segregated where black and whites could live)?
A. denounce it
B. Ambivalent about it
C. Neutral
D. Condone it
Obviously from the main idea and the tone of the passage the author likes aparteid and thus would condone it.
I would be willing to bet my life on "d" being correct.
Answer: A, condemns it, WTF!
reasoning: The author dosn't talk at all about how aparteid disenfranchised blacks in south africa but only talks about the strong economy and whites.
Am I insane or does the fact that he talks only positively about aparteid and dosn't mention disenfranchisement of blacks mean the author condones it!
Second, today's physics problem.
A 3000 watt motor pulls 350 kg weight up a mine shaft for 30 seconds at constant velocity.
Question: If the system were changed so that only a 100 kg weight had to be pulled in 30 seconds what power motor is needed then?
A. 670 w
B. 870 w
C. 1300 w
D. 1500 w
I set the ratio of 350/3000=100=x and solved to get slighty under 1000 w, (realized that doing that in my head would be faster but still got answer B).
Answer: A, 670 w
reasoning: the shaft is 20 m tall so find work by F*D = 100 kg*10= 1000 N* 20=20,000 J / 30 seconds= slightly less than 700 w.
BUT at no time does the passage say the shaft is 20 meters high!
So I checked maybe you had to calculate the height from the info in the passage.
P= FV
so V= P/F
3000 watts/3500 N=.87 m/s velocity *30 seconds=about 26 meters!
26 meters*1000 N= 26,000 J/30 seconds= 2600/3= just under 900 watts! THAT IS ANSWER B!
Useing their own logic I got the same answer!
By the way only 11% of people got that answer right!
So am I going insane or is the EK daily mcat quiz full of errors?
