Science & Mathematics - 28 January 2007

2007-01-28 16:07:12 · 4 answers · asked by Anonymous in Astronomy & Space

A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 3.75 m/s along the length (1.78 m) of the table at one end, by the time it has reached the other end the puck has drifted a distance 2.48 cm to the right but still has a velocity component along the length of 3.7 m/s. She concludes correctly that the table is not level and correctly calculates its inclination from the above information.

What is the angle of inclination? (Take the free fall acceleration to be g = 9.80 m/s^2)

Thanks for the help.

2007-01-28 16:04:48 · 1 answers · asked by Amanda 2 in Physics

Einstein called quantum entanglement "spooky action at a distance" Hawking tries to explain the nature of reality by experiments in which the outcome probably depends on the observer of the experiment. If the information paradox suggested by Hawking is indeed a paradox then it puts everthing back to spooky action at a distance .......... does it not? I could explain further about the relevance of the information paradox to quantum entanglement but then I would have to rephrase the question.

2007-01-28 16:04:26 · 10 answers · asked by captpcb216 2 in Physics

2007-01-28 16:03:32 · 1 answers · asked by afroz 1 in Geography

its from a worksheet... thanks in advance ♥

the amount of air resistance acting on an object depends on the object's...
a) size and shape
b) mass and weight
c) density and mass
d) none of the above

2007-01-28 16:02:25 · 9 answers · asked by that one girl from that one band 3 in Physics

2007-01-28 16:01:56 · 3 answers · asked by itching_to_know 1 in Biology

Any help is greatly appreciated.

"A person purchased 5k+2 items for the cost of 35k^2+29k+6. Find the average cost per item of this purchase."

2007-01-28 16:01:31 · 5 answers · asked by Anonymous in Mathematics

2007-01-28 16:01:03 · 3 answers · asked by afroz 1 in Geography

Find the remainder on division of n=6,523,178 by 9 and then the remainder on division of the cube of n by 9.

2007-01-28 16:00:20 · 5 answers · asked by Anonymous in Mathematics

2007-01-28 15:59:04 · 8 answers · asked by Jon A 1 in Engineering

In other words, is outside air brought into the air conditioner, cooled, and then blown into your house, or is it air that's already in the house, and cooled from that?

I ask because, if it is the second option, it wouldn't seem that you could get any fresh air that way.

Thank you in advance for your help.

2007-01-28 15:58:29 · 9 answers · asked by Anonymous in Other - Science

2007-01-28 15:57:27 · 5 answers · asked by lirael1019 1 in Biology

Describe the "properties" of the baking soda

How many elements/molecules are in baking soda and what are they?

Is baking soda a "compound"? why?

2007-01-28 15:54:27 · 6 answers · asked by STUFF 2 in Chemistry

2007-01-28 15:54:23 · 4 answers · asked by joey d 1 in Medicine

MATHS PRACTICAL SUN DIAL.

2007-01-28 15:53:37 · 5 answers · asked by harryporter 1 in Mathematics

2007-01-28 15:53:18 · 4 answers · asked by rosemariestewart64 1 in Mathematics

2007-01-28 15:50:09 · 14 answers · asked by Anonymous in Chemistry

2007-01-28 15:48:35 · 3 answers · asked by Anonymous in Mathematics

What about other evil germs? How long do they survive on an unwashed hand? Or do they live forever?

2007-01-28 15:47:27 · 5 answers · asked by Doctor Biobrain 3 in Biology

details

2007-01-28 15:46:43 · 2 answers · asked by Anonymous in Mathematics

2007-01-28 15:46:43 · 1 answers · asked by goring 6 in Engineering

2007-01-28 15:45:15 · 2 answers · asked by marknewbs 1 in Botany

Two runners start simultaneously from the same point on a circular track of length 185 m and run in the same direction. One runs at a constant speed of 5.50 m/s and the other at a constant speed of 6.50 m/s .

A: When will the fast one lap the slower one?

B: How far from the starting point will the slower one have run?

C: How far from the starting point will the fast one have run?

Thanks in advance guys :D

2007-01-28 15:44:06 · 3 answers · asked by Anonymous in Physics

linear equation in math

2007-01-28 15:44:00 · 1 answers · asked by sonali j 1 in Mathematics

2007-01-28 15:43:52 · 1 answers · asked by senovi a 1 in Physics

2007-01-28 15:42:52 · 1 answers · asked by Anonymous in Physics

2007-01-28 15:42:42 · 15 answers · asked by The King 2 in Earth Sciences & Geology

/= fraction bar

(1) 4 1/2 X 1 2/3 (2) 20 'divided by' 3 1/2
(3) 8 1/3 'divided by' 3 3/4 (4) 1 3/5 X 2 5/16
(5) 2 5/8 X 4/7 X 12 (6) 4 2/3 'divided by' 10
(7) 7/10 X 4 X 3 1/2

2007-01-28 15:39:59 · 2 answers · asked by Anonymous in Mathematics

Given twelve coins that are identical in size, shape, and color, determine which single coin is heavier or lighter in weight than the others. You are supplied with a balance and must conclude your determination in three weighings.

2007-01-28 15:39:01 · 4 answers · asked by mike c 2 in Mathematics

2007-01-28 15:38:37 · 1 answers · asked by yvonne t 1 in Earth Sciences & Geology