GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 15 Oct 2018, 01:41

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

When asteroids collide, some collisions cause an asteroid to spin fast

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Director
Director
User avatar
B
Status: I don't stop when I'm Tired,I stop when I'm done
Joined: 11 May 2014
Posts: 542
Location: Bangladesh
Concentration: Finance, Leadership
GPA: 2.81
WE: Business Development (Real Estate)
When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 14 Jun 2017, 02:12
8
Top Contributor
30
Question 1
00:00
A
B
C
D
E

based on 1178 sessions

58% (02:57) correct 42% (03:10) wrong

HideShow timer Statistics

Question 2
00:00
A
B
C
D
E

based on 1145 sessions

52% (01:49) correct 48% (01:55) wrong

HideShow timer Statistics

Question 3
00:00
A
B
C
D
E

based on 1109 sessions

72% (01:09) correct 28% (01:25) wrong

HideShow timer Statistics

Question 4
00:00
A
B
C
D
E

based on 1099 sessions

36% (01:20) correct 64% (01:17) wrong

HideShow timer Statistics

When asteroids collide, some collisions cause an asteroid to spin faster; others slow it down. If asteroids are all monoliths—single rocks—undergoing random collisions, a graph of their rotation rates should show a bell-shaped distribution with statistical “tails” of very fast and very slow rotators. If asteroids are rubble piles, however, the tail representing the very fast rotators would be missing, because any loose aggregate spinning faster than once every few hours (depending on the asteroid’s bulk density) would fly apart. Researchers have discovered that all but five observed asteroids obey a strict limit on rate of rotation. The exceptions are all smaller than 200 meters in diameter, with an abrupt cutoff for asteroids larger than that.

The evident conclusion—that asteroids larger than 200 meters across are multicomponent structures or rubble piles—agrees with recent computer modeling of collisions, which also finds a transition at that diameter. A collision can blast a large asteroid to bits, but after the collision those bits will usually move slower than their mutual escape velocity. Over several hours, gravity will reassemble all but the fastest pieces into a rubble pile. Because collisions among asteroids are relatively frequent, most large bodies have already suffered this fate. Conversely, most small asteroids should be monolithic, because impact fragments easily escape their feeble gravity.

(Book Question: 537 RC00524-02)
The passage implies which of the following about the five asteroids mentioned in line 12?

(A) Their rotation rates are approximately the same.
(B) They have undergone approximately the same number of collisions.
(C) They are monoliths.
(D) They are composed of fragments that have escaped the gravity of larger asteroids.
(E) They were detected only recently.


(Book Question: 538 RC00524-04)
The discovery of which of the following would call into question the conclusion mentioned in line 16 [The evident conclusion—that asteroids larger than 200 meters across are multicomponent structures or rubble piles—agrees with recent computer modeling of collisions, which also finds a transition at that diameter.]?

(A) An asteroid 100 meters in diameter rotating at a rate of once per week
(B) An asteroid 150 meters in diameter rotating at a rate of 20 times per hour
(C) An asteroid 250 meters in diameter rotating at a rate of once per week
(D) An asteroid 500 meters in diameter rotating at a rate of once per hour
(E) An asteroid 1,000 meters in diameter rotating at a rate of once every 24 hours


(Book Question: 539 RC00524-06)
According to the passage, which of the following is a prediction that is based on the strength of the gravitational attraction of small asteroids?

(A) Small asteroids will be few in number.
(B) Small asteroids will be monoliths.
(C) Small asteroids will collide with other asteroids very rarely.
(D) Most small asteroids will have very fast rotation rates.
(E) Almost no small asteroids will have very slow rotation rates.


(Book Question: 540 RC00524-07)
The author of the passage mentions “escape velocity” (see line 22) in order to help explain which of the following?

(A) The tendency for asteroids to become smaller rather than larger over time
(B) The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
(C) The frequency with which collisions among asteroids occur
(D) The rotation rates of asteroids smaller than 200 meters in diameter
(E) The tendency for large asteroids to persist after collisions


_________________

Md. Abdur Rakib

Please Press +1 Kudos,If it helps
Sentence Correction-Collection of Ron Purewal's "elliptical construction/analogies" for SC Challenges

Most Helpful Expert Reply
GMAT Club Verbal Expert
User avatar
P
Status: GMAT and GRE tutor
Joined: 13 Aug 2009
Posts: 2110
Location: United States
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 21 Jul 2017, 19:04
9
2
somtsat99 wrote:
Can Anyone explain the answers to question 2 and 4 in detail. Also what could be the level of this official RC ? I find it very hard. Got only 2 answers correct.

Quote:
(Book Question: 538)
The discovery of which of the following would call into question the conclusion mentioned in line 16?
A. An asteroid 100 meters in diameter rotating at a rate of once per week
B. An asteroid 150 meters in diameter rotating at a rate of 20 times per hour
C. An asteroid 250 meters in diameter rotating at a rate of once per week
D. An asteroid 500 meters in diameter rotating at a rate of once per hour
E. An asteroid 1,000 meters in diameter rotating at a rate of once every 24 hours

The conclusion mentioned in line 16 is that "asteroids larger than 200 meters across are multicomponent structures or rubble piles." We are also told that rubble piles would fly apart if they spin faster than once every few hours. Any asteroid spinning faster than once every few hours must not be a rubble pile.

Choice (D) is an example of an asteroid larger than 200 meters that DOES spin faster than once every few hours. That asteroid must not be a rubble pile, going against the conclusion in line 16.

Quote:
(Book Question: 540)
The author of the passage mentions “escape velocity” (see line 22) in order to help explain which of the following?
A. The tendency for asteroids to become smaller rather than larger over time
B. The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
C. The frequency with which collisions among asteroids occur
D. The rotation rates of asteroids smaller than 200 meters in diameter
E. The tendency for large asteroids to persist after collisions

If the bits moved FASTER than their mutual escape velocity, then the bits would "escape" from each other and the large asteroid would remain blown to bits. However, if the bits move SLOWER than their mutual escape velocity, the bits will not escape from each other and, instead, will reassemble due to gravity. Thus, after being blown to bits, most of the bits of the large asteroid will reassemble, explaining the tendency for large asteroids to persist after collisions. (E) is the correct choice.
_________________

GMAT Club Verbal Expert | GMAT/GRE tutor @ www.gmatninja.com (Now hiring!) | Instagram | Food blog | Notoriously bad at PMs

Beginners' guides to GMAT verbal
Reading Comprehension | Critical Reasoning | Sentence Correction

YouTube LIVE verbal webinars
Series 1: Fundamentals of SC & CR | Series 2: Developing a Winning GMAT Mindset

SC & CR Questions of the Day (QOTDs), featuring expert explanations
All QOTDs | Subscribe via email | RSS

Need an expert reply?
Hit the request verbal experts' reply button -- and please be specific about your question. Feel free to tag @GMATNinja in your post. Priority is always given to official GMAT questions.

Sentence Correction articles & resources
How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

Reading Comprehension, Critical Reasoning, and other articles & resources
All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

Most Helpful Community Reply
Manager
Manager
avatar
S
Status: GMAT...one last time for good!!
Joined: 10 Jul 2012
Posts: 63
Location: India
Concentration: General Management
GMAT 1: 660 Q47 V34
GPA: 3.5
GMAT ToolKit User Reviews Badge
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 12 Jul 2017, 11:39
5
C,D,B,E...Time-9 mins

The passage implies which of the following about the five asteroids mentioned in line 12?
A. Their rotation rates are approximately the same.
B. They have undergone approximately the same number of collisions.
C. They are monoliths.
D. They are composed of fragments that have escaped the gravity of larger asteroids.
E. They were detected only recently.

"five observed asteroids obey a strict limit on
rate of rotation. The exceptions are all smaller than
200 meters in diameter"

"Conversely, most
small asteroids should be monolithic"




The discovery of which of the following would call into question the conclusion mentioned in line 16?
A. An asteroid 100 meters in diameter rotating at a rate of once per week
B. An asteroid 150 meters in diameter rotating at a rate of 20 times per hour
C. An asteroid 250 meters in diameter rotating at a rate of once per week
D. An asteroid 500 meters in diameter rotating at a rate of once per hour
E. An asteroid 1,000 meters in diameter rotating at a rate of once every 24 hours

"If asteroids
are rubble piles, however, the tail representing the
very fast rotators would be missing, because any
loose aggregate spinning faster than once every few
hours (depending on the asteroid’s bulk density)
would fly apart."-This means Ruble piles, which are the big ones are slow; Monolithic's, the small ones are fast. The definition of fast being-Spinning faster than once every few hours.

So the conclusion is---Asteroids>200m would spin slowly..
Option D says just the opposite.



According to the passage, which of the following is a prediction that is based on the strength of the gravitational attraction of small asteroids?
A. Small asteroids will be few in number.
B. Small asteroids will be monoliths.
C. Small asteroids will collide with other asteroids very rarely.
D. Most small asteroids will have very fast rotation rates.
E. Almost no small asteroids will have very slow rotation rates.


"Conversely, most
small asteroids should be monolithic"



The author of the passage mentions “escape velocity” (see line 22) in order to help explain which of the following?
A. The tendency for asteroids to become smaller rather than larger over time
B. The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
C. The frequency with which collisions among asteroids occur
D. The rotation rates of asteroids smaller than 200 meters in diameter
E. The tendency for large asteroids to persist after collisions

"A collision can blast a large asteroid to bits,
but after the collision those bits will usually move
slower than their mutual escape velocity. Over several
hours, gravity will reassemble all but the fastest
pieces into a rubble pile."

_________________

Kudos for a correct solution :)

General Discussion
Manager
Manager
avatar
S
Status: MBA Candidate Class of 2020
Joined: 10 Jan 2016
Posts: 113
Location: India
Concentration: Operations, Strategy
GMAT 1: 620 Q47 V29
GMAT 2: 670 Q50 V31
GPA: 4
WE: Business Development (Consulting)
GMAT ToolKit User Premium Member
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 20 Jun 2017, 05:02
Can Anyone explain the answers to question 2 and 4 in detail. Also what could be the level of this official RC ? I find it very hard. Got only 2 answers correct.
Senior Manager
Senior Manager
User avatar
G
Status: Active
Affiliations: NA
Joined: 24 Oct 2012
Posts: 281
GMAT 1: 590 Q50 V21
GMAT 2: 600 Q48 V25
GMAT 3: 730 Q51 V37
GPA: 3.5
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 03 Jul 2017, 04:40
3
The official answer can be found here https://books.google.co.in/books?id=f5v ... %3F&f=true
_________________

#If you like my post , please encourage me by giving Kudos :)

Intern
Intern
User avatar
B
Joined: 16 Feb 2016
Posts: 24
GMAT ToolKit User
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 11 Jul 2017, 14:18
anje29 wrote:
The official answer can be found here https://books.google.co.in/books?id=f5v ... %3F&f=true



Hi anje29,

The above URL shows explanation for only one question! If you have the rights to view other questions, you can help us out here!


Thanks,
ashygoyal
Intern
Intern
User avatar
B
Joined: 16 Feb 2016
Posts: 24
GMAT ToolKit User
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 11 Jul 2017, 14:43
somtsat99 wrote:
Can Anyone explain the answers to question 2 and 4 in detail. Also what could be the level of this official RC ? I find it very hard. Got only 2 answers correct.


Although I too got Q4 wrong, but This is what I can relate to after seeing the correct answer.

The author of the passage mentions “escape velocity” (see line 22) in order to help explain which of the following?
A. The tendency for asteroids to become smaller rather than larger over time
B. The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
C. The frequency with which collisions among asteroids occur
D. The rotation rates of asteroids smaller than 200 meters in diameter
E. The tendency for large asteroids to persist after collisions

Refer to these lines from passage:
A collision can blast a large asteroid to bits,
but after the collision those bits will usually move
slower than their mutual escape velocity.


Collision -> Large to Bits (small ones)
After collision -> Bits slower than mutual escape velocity.

Small ones (bits) will move slower than what? Large ones i guess.
So, mutual escape velocity is associated to large ones only.

Thus, look for options that talk about large ones only!



Thanks,
Ashygoyal
Manager
Manager
avatar
S
Joined: 24 Jan 2017
Posts: 150
GMAT 1: 640 Q50 V25
GMAT 2: 710 Q50 V35
GPA: 3.48
Reviews Badge
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 12 Jul 2017, 09:37
3
1
somtsat99 wrote:
Can Anyone explain the answers to question 2 and 4 in detail. Also what could be the level of this official RC ? I find it very hard. Got only 2 answers correct.


Btw, hi ashygoyal, I can read Q2 only, so I will post its explanation. But I will not type as exact as what's written in OG, because I believe that the following (in my own words) will better help test takers understand how to understand the question and how to drive to the correct answer.

My 2 cents on Q2.

The discovery of which of the following would call into question the conclusion mentioned in line 16?

According to the passage, the conclusion is "that asteroids larger than 200 meters across are multicomponent structures or rubble piles".
--> We're talking about "asteroids larger than 200 meters across", so eliminate (A) and (B) as these options mention asteroids smaller than 200 meters in diameter.

A. An asteroid 100 meters in diameter rotating at a rate of once per week
B. An asteroid 150 meters in diameter rotating at a rate of 20 times per hour[/color
]

In order to weaken the above conclusion, we need to prove that asteroids larger than 200 meters across are NOT multicomponent structures or rubble piles.
Now, let's ask "what evidence does the author use to reach the conclusion??" --> The author argues earlier in the 1st paragraph that "If asteroids are rubble piles, however, the tail representing the very fast rotators would be missing, because any loose aggregate spinning faster than once every few hours (depending on the asteroid’s bulk density) would fly apart."
. In other words, rubble piles don't rotate faster than once every few hours, because if they do, they would fly apart.

It seems to be quite clear now, right? In order claim that asteroids larger than 200 meters across are NOT multicomponent structures or rubble piles, we just need to prove that these asteroids rotate faster than once every few hours, a character that is totally contrary to that of rubble piles!

[color=#ec008c]C. An asteroid 250 meters in diameter rotating at a rate of once per week
--> Still slower than "once every few hours". OUT

D. An asteroid 500 meters in diameter rotating at a rate of once per hour
--> Yes, that's it! "a rate of once per hour" demonstrates that the asteroid rotates faster than once every few hours. CORRECT!

E. An asteroid 1,000 meters in diameter rotating at a rate of once every 24 hours
--> Still slower than "once every few hours". OUT

Hope this helps!
VP
VP
User avatar
P
Status: Learning
Joined: 20 Dec 2015
Posts: 1139
Location: India
Concentration: Operations, Marketing
GMAT 1: 670 Q48 V36
GRE 1: Q157 V157
GPA: 3.4
WE: Engineering (Manufacturing)
Reviews Badge
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 22 Jul 2017, 05:21
A very tough passage with good questions to practice .
Very good explanations .
_________________

Please give kudos if you found my answers useful

Manager
Manager
User avatar
S
Joined: 21 Dec 2014
Posts: 67
Location: Viet Nam
Concentration: Entrepreneurship, General Management
Schools: Duke '21
GMAT 1: 710 Q49 V37
GPA: 3.8
WE: Other (Other)
GMAT ToolKit User Reviews Badge CAT Tests
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 31 Jul 2017, 01:04
1
Q2:
The discovery of which of the following would call into question the conclusion mentioned in line 16?
A. An asteroid 100 meters in diameter rotating at a rate of once per week
B. An asteroid 150 meters in diameter rotating at a rate of 20 times per hour
C. An asteroid 250 meters in diameter rotating at a rate of once per week
D. An asteroid 500 meters in diameter rotating at a rate of once per hour
E. An asteroid 1,000 meters in diameter rotating at a rate of once every 24 hours

For me, the explanation for this question is the following evidence:
The evident conclusion—that asteroids larger than 200 meters across are multicomponent structures or rubble piles—agrees with recent computer modeling of collisions, which also finds a transition at that diameter. A collision can blast a large asteroid to bits, but after the collision those bits will usually move slower than their mutual escape velocity. Over several hours, gravity will reassemble all but the fastest pieces into a rubble pile
conclution: large asteroids >= 200m are multicomponent structures.
Reasoning: after collision, asteroids become bits. velocity of these bit < escape velocity. therefore, these bits remain and gravity reassemble over several hours to become rubble pile.

In D: An asteroid 500 meters in diameter rotating at a rate of once per hour
the large asteroid rotates once per hour. so gravity cannot reassemble and asteroids are not rubble piles. So weaken the argument.
_________________

Kudo is nothing but encouragement!

Manager
Manager
User avatar
S
Joined: 21 Dec 2014
Posts: 67
Location: Viet Nam
Concentration: Entrepreneurship, General Management
Schools: Duke '21
GMAT 1: 710 Q49 V37
GPA: 3.8
WE: Other (Other)
GMAT ToolKit User Reviews Badge CAT Tests
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 31 Jul 2017, 01:13
Q4
The author of the passage mentions “escape velocity” (see line 22) in order to help explain which of the following?
A. The tendency for asteroids to become smaller rather than larger over time
B. The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
C. The frequency with which collisions among asteroids occur
D. The rotation rates of asteroids smaller than 200 meters in diameter
E. The tendency for large asteroids to persist after collisions

For me, choice B tell the opposite.
In the passage: "A collision can blast a large asteroid to bits,but after the collision those bits will usually moveslower than their mutual escape velocity"
it means velocity of these bit is slower than escape velocity, so they remain.
In choice B:The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
the fragments will reassemble with escape velocity. so its incorrect.
_________________

Kudo is nothing but encouragement!

Senior Manager
Senior Manager
User avatar
G
Joined: 19 Oct 2012
Posts: 330
Location: India
Concentration: General Management, Operations
GMAT 1: 660 Q47 V35
GMAT 2: 710 Q50 V38
GPA: 3.81
WE: Information Technology (Computer Software)
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 08 Oct 2017, 12:59
somtsat99 wrote:
Can Anyone explain the answers to question 2 and 4 in detail. Also what could be the level of this official RC ? I find it very hard. Got only 2 answers correct.


Time Taken: 10mins 34seconds.
I got 1 question wrong (~Q4); Although I got it wrong as I fell for Option B, I didn't have a clear reason to rule our option E either. I should have been more diligent here.


Although people have spoken at large here, I would like to share my 2 cents here out of my analysis:

The author of the passage mentions “escape velocity” (see line 22) in order to help explain which of the following?
A. The tendency for asteroids to become smaller rather than larger over time
B. The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
C. The frequency with which collisions among asteroids occur
D. The rotation rates of asteroids smaller than 200 meters in diameter
E. The tendency for large asteroids to persist after collisions


Option B: The speed with which....Blah blah.
This option should have been ruled out of contention. The author mentions the escape velocity not to describe the speed with which the remaining parts are reassembled along side the asteriod but the speed which remaining parts don't achieve and hence remain part of the asteroid's gravitational pull.

A subtle but vast change in context here. Loved it!!
_________________

Citius, Altius, Fortius

Senior Manager
Senior Manager
User avatar
G
Joined: 04 Feb 2014
Posts: 250
Location: India
Concentration: General Management, Entrepreneurship
GPA: 3
WE: Project Management (Manufacturing)
GMAT ToolKit User
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 17 Nov 2017, 09:46
Time taken 7:30 min.
Got 1st wrong. How can the answer be C

I think only the small ones i.e below 200 are Monoliths not all 5!

And if it's c then why D is wrong?
_________________

Kudos if you like my post

Senior Manager
Senior Manager
avatar
P
Joined: 13 Oct 2016
Posts: 288
Concentration: Operations, Leadership
GMAT 1: 600 Q44 V28
GMAT ToolKit User Premium Member
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 21 Nov 2017, 09:16
Time taken - 8 mins

Got the last two questions wrong.

GMATNinja - Could you please explain the options B and E in the 4th question. Although i understood the option E explained by you in the earlier posts , however what is wrong with option B. :suspect
_________________

_______________________________________________
If you appreciate the post then please click +1Kudos :)

GMAT Club Verbal Expert
User avatar
P
Status: GMAT and GRE tutor
Joined: 13 Aug 2009
Posts: 2110
Location: United States
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 22 Nov 2017, 19:46
1
Kritesh wrote:
GMATNinja - Could you please explain the options B and E in the 4th question. Although i understood the option E explained by you in the earlier posts , however what is wrong with option B. :suspect

Quote:
(Book Question: 540)
The author of the passage mentions “escape velocity” (see line 22) in order to help explain which of the following?
A. The tendency for asteroids to become smaller rather than larger over time
B. The speed with which impact fragments reassemble when they do not escape an asteroid’s gravitational attraction after a collision
C. The frequency with which collisions among asteroids occur
D. The rotation rates of asteroids smaller than 200 meters in diameter
E. The tendency for large asteroids to persist after collisions

The "escape velocity" is the speed at which the fragments would escape an asteroid's gravitational attraction after a collision. But this has nothing to do with HOW LONG it would take the fragments to reassemble.

We are told that gravity will reassemble all but the fastest pieces over several hours, but does the author mention "escape velocity" in order to explain how long that reassembly takes? No, the author is not concerned with explaining the reassembly time (or, for that matter, with explaining what determines the escape velocity itself).

What matters is that large asteroids will reassemble after collisions, not the speed at which they will do so. Thus, choice (B) should be eliminated.

I hope that helps!
_________________

GMAT Club Verbal Expert | GMAT/GRE tutor @ www.gmatninja.com (Now hiring!) | Instagram | Food blog | Notoriously bad at PMs

Beginners' guides to GMAT verbal
Reading Comprehension | Critical Reasoning | Sentence Correction

YouTube LIVE verbal webinars
Series 1: Fundamentals of SC & CR | Series 2: Developing a Winning GMAT Mindset

SC & CR Questions of the Day (QOTDs), featuring expert explanations
All QOTDs | Subscribe via email | RSS

Need an expert reply?
Hit the request verbal experts' reply button -- and please be specific about your question. Feel free to tag @GMATNinja in your post. Priority is always given to official GMAT questions.

Sentence Correction articles & resources
How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

Reading Comprehension, Critical Reasoning, and other articles & resources
All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

Intern
Intern
avatar
S
Joined: 25 Jul 2017
Posts: 38
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 25 Dec 2017, 20:37
It took me 8 minutes to finish and I chose wrong answer for 1st question, the remaining are correct. Anyone can help me explain the 1st question. THanks.
Manager
Manager
User avatar
B
Joined: 20 Jan 2016
Posts: 94
Location: Canada
Schools: HBS '18
WE: Consulting (Other)
CAT Tests
Re: When asteroids collide, some collisions cause an asteroid to spin fast  [#permalink]

Show Tags

New post 25 Aug 2018, 11:08
I found this very very challenging. I think it has to do with lack of familiarity of the topic.
_________________

Migatte no Gokui

GMAT Club Bot
Re: When asteroids collide, some collisions cause an asteroid to spin fast &nbs [#permalink] 25 Aug 2018, 11:08
Display posts from previous: Sort by

When asteroids collide, some collisions cause an asteroid to spin fast

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


cron
Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.