Go Back   Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum > General Science Forums > Physics Forum
Register Search Today's Posts Mark Forums Read

Physics Forum Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


lol help for stupid question

lol help for stupid question - Physics Forum

lol help for stupid question - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-24-2005, 06:19 PM
rp
Guest
 
Posts: n/a
Default lol help for stupid question



hey guys

i'm a big fan of this fascinating group. i'm not sure where to find the
answer to my following question ..so i'm asking for your help please.

Say I manage to hover over the earth (not in space: for arguments's sake say
1 km high and I start hoevering at noon over Nazca). Now say it's 18:00,
will the earth rotation cause me to end up somewhere easterly at all?

and does this have any effect on airplanes travelling times?

lol i know it could be a stupid question but i'd appreciate answer
nevertheless.


Reply With Quote
  #2  
Old 08-24-2005, 06:22 PM
rp
Guest
 
Posts: n/a
Default lol help for stupid question

i meant westerly lol....maybe.

"rp" <[Only registered users see links. ]> wrote in message
news:JS2Pe.15668$[Only registered users see links. ].blueyonder.co. uk...


Reply With Quote
  #3  
Old 08-24-2005, 06:26 PM
rp
Guest
 
Posts: n/a
Default lol help for stupid question

terribly sorry ..i forgot to say tht air currents should be taken as
negligible.

"rp" <[Only registered users see links. ]> wrote in message
news:BV2Pe.15671$[Only registered users see links. ].blueyonder.co.uk ...


Reply With Quote
  #4  
Old 08-25-2005, 12:22 AM
N:dlzc D:aol T:com \(dlzc\)
Guest
 
Posts: n/a
Default lol help for stupid question

Dear rp:

"rp" <[Only registered users see links. ]> wrote in message
news:JS2Pe.15668$[Only registered users see links. ].blueyonder.co. uk...

It depends on your method of "hovering". Describe how you would
do this and we'll see how to answer your question.


No, the jet stream and the method of maintaining altitude serve
to negate any effects.


I think you are seeking for "Coriolis" effect or something
similar...

David A. Smith


Reply With Quote
  #5  
Old 08-25-2005, 08:28 AM
rp
Guest
 
Posts: n/a
Default lol help for stupid question


"N:dlzc D:aol T:com (dlzc)" <N: dlzc1 D:cox T:[Only registered users see links. ]> wrote in
message news:vb8Pe.124881$E95.87578@fed1read01...
I would be hovering stationary in earth's atmospehere relative to a point in
space directly above me. I'm not sure if it mak sense..but consider being
suspended over a running treadmill: if i hover for a while, then come down,
I'd be at another point on the treadmill from where i started. If a plane
travels against the earth's axial rotation, it could reach it's destinatoin
for the same geographical distance compared to travelling in the same
direction as earth's rotation?

I realy appreciate you putting up with my limited knowledge : )

thx for that.


Reply With Quote
  #6  
Old 08-25-2005, 11:41 AM
888
Guest
 
Posts: n/a
Default lol help for stupid question


"rp" <[Only registered users see links. ]> wrote in message
news:SifPe.23219$[Only registered users see links. ].blueyonder.co. uk...

I believe, and it can be proven, that if a plane travelled against the earth's
axis rotation it would reach it's destination quicker than if the earth didn't
rotate. Likewise, if travelled in the direction of the earth's rotation, it'd
reach it's destination later!

Reply With Quote
  #7  
Old 08-25-2005, 01:21 PM
N:dlzc D:aol T:com \(dlzc\)
Guest
 
Posts: n/a
Default lol help for stupid question

Dear rp:

"rp" <[Only registered users see links. ]> wrote in message
news:SifPe.23219$[Only registered users see links. ].blueyonder.co. uk...

OK, so you reach out and lock your "frame" to a single distant
object (using magic). The Earth has a motion of about 20 km/sec
with respect to the average object in the Milky Way, and 300
km/sec with respect to the average object (visible) in the
Universe. So you will be in deep space in 5 seconds, a minute
(if tangential to the surface), or impacted into the surface
leaving a smoking crater.


Planes don't "hover" in the sense you describe. Helicopters
don't hover either, because the rotating airfoil simply serves to
do what airplanes do, without ever having to depart the surface.

We have a motion of about 1000 mph eastwards, depending on our
latitude. (Sorry for the use of Imperial units.) If a rocket is
launched eastwards, this represents a pretty good amount of
rocket fuel that does not have to be expended. This is why most
launches are done in this direction, rather than the reverse.


No issues...

David A. Smith


Reply With Quote
  #8  
Old 08-25-2005, 03:53 PM
rp
Guest
 
Posts: n/a
Default lol help for stupid question


"888" <[Only registered users see links. ]> wrote in message
news:430dae73$0$1278$[Only registered users see links. ].net...

lol that's what i've been thinking about. you really think so too?


Reply With Quote
  #9  
Old 08-25-2005, 03:55 PM
rp
Guest
 
Posts: n/a
Default lol help for stupid question


"N:dlzc D:aol T:com (dlzc)" <N: dlzc1 D:cox T:[Only registered users see links. ]> wrote in
message news:RBjPe.124974$E95.121800@fed1read01...

thx...lol i make a confession. I'm gonna study physics at uni in Birmingham
UK starting this september. I really have been reading this newsgroupfor
ages and yeah you always seem to come up with the right answers all the
time. i got a learn to learn.


Reply With Quote
Reply

Tags
lol , question , stupid


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
question about phenol/water saturated solution Z.L. K Protocols and Methods Forum 2 02-11-2008 01:05 AM
Question about work and friction Robert Physics Forum 2 01-04-2008 12:50 PM
Just a big question... rahemanvelji@yahoo.ca Physics Forum 8 05-09-2005 08:44 PM
Sci.chem FAQ - Part 1 of 7 Bruce Hamilton Chemistry Forum 0 01-15-2004 09:06 AM


All times are GMT. The time now is 10:11 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Molecular Station | All Rights Reserved
Page generated in 0.16109 seconds with 16 queries