It is currently 13 Dec 2017, 09:13

Decision(s) Day!:

CHAT Rooms | Ross R1 | Kellogg R1 | Darden R1 | Tepper R1


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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Meteor showers or storms left in the wake of disintegrating

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

Hide Tags

1 KUDOS received
BSchool Thread Master
avatar
B
Joined: 21 Jun 2013
Posts: 41

Kudos [?]: 17 [1], given: 7

Location: India
GMAT 1: 740 Q50 V40
Reviews Badge CAT Tests
Meteor showers or storms left in the wake of disintegrating [#permalink]

Show Tags

New post 07 Aug 2016, 07:07
1
This post received
KUDOS
1
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  95% (hard)

Question Stats:

34% (01:55) correct 66% (02:16) wrong based on 195 sessions

HideShow timer Statistics

someone please explain its answer.

Meteor showers or storms left in the wake of disintegrating comets fall towards the earth and have caused several accidents when they collide with unmanned communication satellites. Irish astronomer James Lawrence postulated a method for calculating the position of the meteor dust at Earth's orbit by studying the dust ejected in 1866 by comet 55P/ Tempel-Tuttle and the Leonid shower return of 1898 and 1899. This method allowed him to predict with reasonable accuracy the position of the meteor dust as it approaches the earth. Hence, it can be safely assumed that accidents caused by the collision of meteor showers with unmanned communication satellites will be prevented.

Which of the following, if true, most seriously weakens the argument above?

1)Predictions about the position of approaching meteor showers are much more accurate today than they were in the last decade of the nineteenth century.
2)Scientists have corroborated Lawrence’s work and established the significance of the Leonid shower to calculations of the position of meteor dust.
3)Evidence other than that used by Lawrence has previously enabled scientists to predict the position of the meteor dust as it approaches the earth.
4)Scientists have not been able to understand exactly how the meteor showers disintegrate before they reach the earth, yet manage to have a significant impact on the unmanned satellites.
5)Some scientists have found several discrepancies between Lawrence’s work with meteors and his earlier work.
[Reveal] Spoiler: OA

Kudos [?]: 17 [1], given: 7

NTU Nanyang Thread Master
User avatar
B
Status: It`s Just a pirates life !
Joined: 21 Mar 2014
Posts: 235

Kudos [?]: 17 [0], given: 246

Location: India
Concentration: Strategy, Operations
GMAT 1: 690 Q48 V36
GPA: 4
WE: Consulting (Manufacturing)
Reviews Badge
Meteor showers or storms left in the wake of disintegrating [#permalink]

Show Tags

New post 07 Aug 2016, 07:30
anujasterisk90 wrote:
someone please explain its answer.

Meteor showers or storms left in the wake of disintegrating comets fall towards the earth and have caused several accidents when they collide with unmanned communication satellites. Irish astronomer James Lawrence postulated a method for calculating the position of the meteor dust at Earth's orbit by studying the dust ejected in 1866 by comet 55P/ Tempel-Tuttle and the Leonid shower return of 1898 and 1899. This method allowed him to predict with reasonable accuracy the position of the meteor dust as it approaches the earth. Hence, it can be safely assumed that accidents caused by the collision of meteor showers with unmanned communication satellites will be prevented.

Which of the following, if true, most seriously weakens the argument above?

1)Predictions about the position of approaching meteor showers are much more accurate today than they were in the last decade of the nineteenth century.
2)Scientists have corroborated Lawrence’s work and established the significance of the Leonid shower to calculations of the position of meteor dust.
3)Evidence other than that used by Lawrence has previously enabled scientists to predict the position of the meteor dust as it approaches the earth.
4)Scientists have not been able to understand exactly how the meteor showers disintegrate before they reach the earth, yet manage to have a significant impact on the unmanned satellites.
5)Some scientists have found several discrepancies between Lawrence’s work with meteors and his earlier work.


Hi I will give my 2 cents on this.

There is a problem of meteorites colliding with Satellites. A method was found and applied (Sample) and this is projected to say that This method can be used to avoid/prevent such attacks in the future.

Weaken the argument. Here comes the "ALTERNATE WEAKENER" (doesnot directly criticize)

A - Comparison of accuracy - Infact a mild Strengthener
B - Strengthener
C - This is the correct choice. Previously scientists have used methods to predict the collision issue. But still for some reason, This is not happening right. There could be huge complexity involved. This implies that any new prediction algorithm won`t work fine (here we have James lawrence theorem)
D - Irrelevant. You dont need to understand something to find something. (serendipity)
E - This states lawrence work with meteors and not about collision prevention algorithm.

Hope it helps!@
_________________

Aiming for a 3 digit number with 7 as hundredths Digit

Kudos [?]: 17 [0], given: 246

Manager
Manager
User avatar
B
Status: GMAT Coach
Joined: 05 Nov 2012
Posts: 130

Kudos [?]: 47 [0], given: 17

Location: Peru
GPA: 3.98
Re: Meteor showers or storms left in the wake of disintegrating [#permalink]

Show Tags

New post 24 Oct 2016, 06:58
anujasterisk90 wrote:
someone please explain its answer.

Meteor showers or storms left in the wake of disintegrating comets fall towards the earth and have caused several accidents when they collide with unmanned communication satellites. Irish astronomer James Lawrence postulated a method for calculating the position of the meteor dust at Earth's orbit by studying the dust ejected in 1866 by comet 55P/ Tempel-Tuttle and the Leonid shower return of 1898 and 1899. This method allowed him to predict with reasonable accuracy the position of the meteor dust as it approaches the earth. Hence, it can be safely assumed that accidents caused by the collision of meteor showers with unmanned communication satellites will be prevented.

Which of the following, if true, most seriously weakens the argument above?

1)Predictions about the position of approaching meteor showers are much more accurate today than they were in the last decade of the nineteenth century.
2)Scientists have corroborated Lawrence’s work and established the significance of the Leonid shower to calculations of the position of meteor dust.
3)Evidence other than that used by Lawrence has previously enabled scientists to predict the position of the meteor dust as it approaches the earth.
4)Scientists have not been able to understand exactly how the meteor showers disintegrate before they reach the earth, yet manage to have a significant impact on the unmanned satellites.
5)Some scientists have found several discrepancies between Lawrence’s work with meteors and his earlier work.


Choice C weakens the argument.

Choice C. Evidence other than that used by Lawrence has previously enabled scientists to predict the position of the meteor dust as it approaches the earth.

Premise: This method allowed him to predict with reasonable accuracy the position of the meteor dust as it approaches the earth.
Conclusion: accidents caused by the collision of meteor showers with unmanned communication satellites will be prevented

If accidents caused by the collision of meteor showers with unmanned communication satellites will be prevented because this method allowed him to predict with reasonable accuracy the position of the meteor dust as it approaches the earth, then why did the evidence that had previously enabled scientist to make same prediction did not prevent this collision?
_________________

Clipper Ledgard
GMAT Coach

Kudos [?]: 47 [0], given: 17

Manager
Manager
avatar
S
Joined: 26 Jun 2017
Posts: 114

Kudos [?]: 32 [0], given: 218

Location: Russian Federation
Concentration: General Management, Strategy
WE: Information Technology (Other)
Re: Meteor showers or storms left in the wake of disintegrating [#permalink]

Show Tags

New post 04 Nov 2017, 12:30
anujasterisk90 wrote:
someone please explain its answer.

Meteor showers or storms left in the wake of disintegrating comets fall towards the earth and have caused several accidents when they collide with unmanned communication satellites. Irish astronomer James Lawrence postulated a method for calculating the position of the meteor dust at Earth's orbit by studying the dust ejected in 1866 by comet 55P/ Tempel-Tuttle and the Leonid shower return of 1898 and 1899. This method allowed him to predict with reasonable accuracy the position of the meteor dust as it approaches the earth. Hence, it can be safely assumed that accidents caused by the collision of meteor showers with unmanned communication satellites will be prevented.

Which of the following, if true, most seriously weakens the argument above?

1)Predictions about the position of approaching meteor showers are much more accurate today than they were in the last decade of the nineteenth century.
2)Scientists have corroborated Lawrence’s work and established the significance of the Leonid shower to calculations of the position of meteor dust.
3)Evidence other than that used by Lawrence has previously enabled scientists to predict the position of the meteor dust as it approaches the earth.
4)Scientists have not been able to understand exactly how the meteor showers disintegrate before they reach the earth, yet manage to have a significant impact on the unmanned satellites.
5)Some scientists have found several discrepancies between Lawrence’s work with meteors and his earlier work.


Why C is a right answer. Because it weakens the argument.
James Lawrence found how to predict the position of meteor dust. Now he hopes, that collision accidents will be prevented.
But.
Scientists knew how to predict the position of meteor dust before him. And it did not help to prevent collisions.
So.
It is unlikely that his hope will come true.

Kudos [?]: 32 [0], given: 218

Re: Meteor showers or storms left in the wake of disintegrating   [#permalink] 04 Nov 2017, 12:30
Display posts from previous: Sort by

Meteor showers or storms left in the wake of disintegrating

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


GMAT Club MBA Forum Home| About| Terms and Conditions| 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®.