Brain teasers.
Posting Guru
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From: Langhorne, PA
Originally Posted by Mil1ion
Okay, IIRC, this is the pressure on a whale's body at the depth of about 900 ft .....and a certain kind of Whale (probably a sperm or killer whale) can dive down to...about 3000 ft.
Posting Guru
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From: Wolfforth
okay, gotta bring it back to the top so i can see the answer.. all i found was an article talking about uranium changing to lead and you can change it's halflife by up to a second if it's under pressures up to a million psi... *shrug* or something like that.. i prolly read it wrong
Post Fiend
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From: Lafayette, IN
A guy drives a car over a hill. The hill is one mile up and one mile down. He drives up the hill at 30 MPH. How fast does he have to drive down the hill to average 60 MPH for the whole trip over the hill? (Neglect acceleration, wind resistance, alignment of the planets, etc.)
Jason
Jason
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From: Where's my map???
Originally Posted by jroehl
A guy drives a car over a hill. The hill is one mile up and one mile down. He drives up the hill at 30 MPH. How fast does he have to drive down the hill to average 60 MPH for the whole trip over the hill? (Neglect acceleration, wind resistance, alignment of the planets, etc.)
Jason
Jason
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Excuse me, but doesn't 51 thousands = 51,000? And if I read the OP correctly it said "On" the planet, not "In" the planet. Please correct me if I'm wrong.
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From: Virginia Beach
Originally Posted by tewferford
No less and no more than 90MPH
Hotshot
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From: Kansas City, KS
Wrong...no reference to time is included in the question. If he travels 1 mile at 30 mph, and one mile at 90 mph, he WILL average 60 mph over the course of the "whole trip over the hill".
Last edited by tcbofade; Apr 9, 2007 at 01:32 PM.
Government Teat-sucker
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From: Virginia Beach
Originally Posted by tcbofade
Wrong...no reference to time is included in the question. If he travels 1 mile at 30 mph, and one mile at 90 mph, he WILL average 60 mph over the course of the "whole trip over the hill".
Jumped on the incorrect answer I'm:Sofa
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Originally Posted by Admin
Almost..... between earths core and the mantle 51 million at the core a bit less between layers….so anyone else have one…a teaser.
I presume you have ended this riddle with the above reply ?
HUGE difference between 51 Thousand (51,000 psi) and 51 Million psi
No wonder none of us got it.
The figure was wrong.
Unless of course saying 51 Thousands psi as opposed to 51 Million Psi was part of the riddle ?
But, You make typos all time so how would we know that ?
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FTE Leadership Emeritus
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From: 3rd Rock
Dennis give it a break, quit trying to get me in a corner it was meant as something to have fun with, forgot can’t do that ...the problem is NOT at the center of the earth, at the center is 51 M at the layers it is 51K ....big difference I was looking for between the layers not the center. But who cares...right.
BTW on the planet means in my book all the way through it also....
BTW on the planet means in my book all the way through it also....