Science & Mathematics - 16 December 2007

I live near a nuclear reactor which has had its share of unusual events and alerts and I'm wondering if there is a site that logs the emergencies that occur at nuclear reactors in the US.

This information always shows up in the news so I would expect that somewhere out there someone is chronicling it...

Thanks!

2007-12-16 13:20:12 · 1 answers · asked by John 1 in Physics

Recently, I always found a lot of small animal feces at my backyard (maybe rabbit or squirrel).How can I stop them pooping at my yard? Thanks!

2007-12-16 13:19:32 · 4 answers · asked by apple 1 in Zoology

help

2007-12-16 13:17:21 · 9 answers · asked by Anonymous in Mathematics

What's the point of it if one of the assumptions is "the population size doesn't increase or decrease during the sampling study"?

Isn't the point of the mark-recapture method to determine what the population is?

What would happen if this assumption wasn't taken into consideration?

2007-12-16 13:16:56 · 1 answers · asked by Anonymous in Botany

h traits?

A. 1/16
B. 3/16
C. 1/4
D. 9/16
E. 3/4

2007-12-16 13:15:52 · 2 answers · asked by kevinpatel98 1 in Botany

2007-12-16 13:15:31 · 3 answers · asked by Beatrice c 3 in Earth Sciences & Geology

2007-12-16 13:14:58 · 2 answers · asked by Anonymous in Mathematics

how big would the tidal wave be, or how fast, damage

2007-12-16 13:13:34 · 1 answers · asked by Anonymous in Physics

Andrea has a mass of 49 kg. She rides the up escalator at Ocean Park in Hong Kong. This is the world's longest escalator, with a length of 227 m and an average inclination of 31°. How much work does the escalator do on Andrea?

I have no idea... any help would be apprecaited

2007-12-16 13:08:21 · 2 answers · asked by Anonymous in Physics

2007-12-16 13:04:06 · 4 answers · asked by lizerbeth28 2 in Physics

2007-12-16 13:02:25 · 6 answers · asked by Holly 1 in Mathematics

2007-12-16 13:01:46 · 5 answers · asked by Anonymous in Earth Sciences & Geology

is it prokaryotes??? can't remember

2007-12-16 13:00:08 · 4 answers · asked by cheer4u_n92 1 in Biology

2007-12-16 12:55:30 · 2 answers · asked by Anonymous in Mathematics

you want to estimate the difference in grade point averages between two groupd of college students accurate to within .2 grade point, with probability approximately equal to .95.

if the standard deviation of the grade point measurements is approximately equal to .6,
how many students must be included in each group? (assume that the groups will be of equal size)

2007-12-16 12:55:21 · 2 answers · asked by Anonymous in Mathematics

2007-12-16 12:54:06 · 4 answers · asked by Anonymous in Botany

The record of primate evolution remains frustratingly incomplete and subject to debate. For certain periods of time over large areas there are no fossils known at all. At other times, in other places, there is an abundance of fossils. What are three significant gaps and/or debates involving the fossil evidence, and what kind of new fossil discovery would fill a significant gap or resolve a major debate in each case. Describe these hypothetical discoveries for each of the three cases.

2007-12-16 12:51:28 · 2 answers · asked by John 2 in Biology

Can you give me the names of deciduous forest animals in Minnesota and their species and genus?? Please and Thank you!!

2007-12-16 12:51:14 · 2 answers · asked by Mandy 5 in Botany

An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that a person inside is stuck to the wall and does not slide down when the floor drops away.
The acceleration due to gravity is 9.8 m/s/s.
Given g = 9.8 m/s/s, the coefficient u=0.444 of static friction between a person and the wall, and the radius of the cylinder R = 3.7 m. For simplicity, neglect the person's depth and assume he or she is just a physical point on the wall. The person's speed is
v= (2 Pi r)/ T
where T is the rotation period of the cylinder
Find the maximum rotation period T of the cylinder which would prevent a 65 kg person from falling down. Answer in units of s.

2007-12-16 12:48:57 · 3 answers · asked by Anonymous in Physics

Always have wondered, but never got around to asking anyone.

2007-12-16 12:46:59 · 14 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-16 12:46:10 · 8 answers · asked by Anonymous in Astronomy & Space

the canon fires at the speed of 30m/s. find the 2 possible angle of the canon that it will hit the top of the tower.

2007-12-16 12:45:54 · 3 answers · asked by samkill 1 in Physics

2007-12-16 12:45:33 · 1 answers · asked by Anonymous in Physics

2007-12-16 12:44:21 · 3 answers · asked by Anonymous in Astronomy & Space

2007-12-16 12:43:43 · 1 answers · asked by ayessa 1 in Physics

A child and sled with a combined mass of 48.6 kg slide down a frictionless hill that is 8.02 m high. If the sled starts from rest, what is its speed at the bottom of the hill?

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A person doing a chin-up weighs 755 N, disregarding the weight of the arms. During the first 25.0 cm of the lift, each arm exerts an upward force of 381 N on the torso. If the upward movement starts from rest, what is the person's speed at this point?

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A skier of mass 65.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 41 m up a 30° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

2007-12-16 12:43:41 · 1 answers · asked by Anonymous in Physics

2007-12-16 12:41:30 · 6 answers · asked by Luis O 1 in Mathematics

for physics

2007-12-16 12:40:53 · 1 answers · asked by ayessa 1 in Physics

2007-12-16 12:40:36 · 6 answers · asked by Anonymous in Astronomy & Space

2007-12-16 12:40:29 · 1 answers · asked by Anonymous in Earth Sciences & Geology