Science & Mathematics - 5 November 2007

A friend called me one night in late November to talk. Her boyfriend wasn’t at home and she was a little scared of some noises. They had lived in that little house out in the countryside for years and strange noises had never bothered her before. The sounds from the woods surrounding the house and the animals in it were something that she was used to, but the noise she was hearing was different. She told me that it sounded as if a man walked up the steps to their front door, stomped his feet to get the snow of his boots and then opened the door. The first time she thought is was a friend that came to visit and went to the hallway to greet him, but there was no one there. The second time she went to the hallway she thought someone was playing a prank on her and she opened the front door to yell at him. It had been snowing and there were no tracks in the snow. That’s when she called me.
(continues in add on)

2007-11-05 23:57:31 · 9 answers · asked by zaT 7 in Other - Alternative

1- What is the maximum acceptable decimal dimension for a 36 degree angle with a tolerance of plus or minus 30 minutes?

2007-11-05 23:45:52 · 3 answers · asked by hitman812001 1 in Mathematics

2007-11-05 23:36:31 · 17 answers · asked by Anonymous in Zoology

2007-11-05 23:34:25 · 14 answers · asked by hellllloooooooo 1 in Mathematics

2007-11-05 23:29:59 · 2 answers · asked by Alex N 3 in Other - Science

in a lab we used a dynamic cart photogate smart timer etc

2007-11-05 23:29:19 · 2 answers · asked by tonet 1 in Physics

2007-11-05 23:26:06 · 11 answers · asked by Sergey G 2 in Astronomy & Space

2007-11-05 23:22:38 · 4 answers · asked by Alex N 3 in Astronomy & Space

2007-11-05 23:19:36 · 2 answers · asked by Hoodio33 1 in Engineering

2007-11-05 23:19:02 · 5 answers · asked by Alex N 3 in Other - Science

2007-11-05 23:14:32 · 16 answers · asked by Anonymous in Parapsychology

For the last several days, it has been getting brighter and is visible to the naked eye (in the constellation Perseus).

Did you use a 'scope? What have you seen?

2007-11-05 23:13:11 · 14 answers · asked by Richard 7 in Astronomy & Space

2007-11-05 23:00:32 · 13 answers · asked by Anonymous in Physics

I'm talkin like every animal in the book, birds, mammals, marine life. it all interests me and i would love to do a job where i could learn a lot about them. not just a veterinarian i mean like wild animals all around the world

2007-11-05 22:49:32 · 7 answers · asked by bkvaluemenu1 3 in Zoology

it will return back down right? I just had a test at my school about these thing and a question popped up in my head, if the bullet comes down, it will have a high velocity right? Can it hurt someone as bad as a bullet fired directly at the person?

My guess is no, because air friction won't make the bullet as fast.

Please explain what would actually happen and correct me if I'm wrong...

2007-11-05 22:40:18 · 14 answers · asked by Anonymous in Physics

2007-11-05 22:35:49 · 5 answers · asked by Anonymous in Physics

2007-11-05 22:35:03 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-11-05 22:31:01 · 8 answers · asked by Danial_K999 2 in Mathematics

2007-11-05 22:29:56 · 4 answers · asked by Anonymous in Physics

How do I do that?

cosec 210

I can do the standard ones straight through my calculator but I'm pulling a blank with the cosec and the other advanced (?) ratios.

2007-11-05 22:29:14 · 6 answers · asked by Skaggy says: 5 in Mathematics

2007-11-05 22:16:17 · 11 answers · asked by davon f 1 in Physics

Y=(-1/3X)+(1/2)
i can rearrange the formula
1/3X+Y-1/2=0 but i can't leave it like this,, need be whole number how can i do that?

2007-11-05 22:10:28 · 3 answers · asked by randike2007 1 in Mathematics

2007-11-05 22:07:33 · 14 answers · asked by llo_uk 2 in Engineering

plz suggest the simplest and direct way.... or may be a short trick.

2007-11-05 21:42:32 · 2 answers · asked by El diablo 2 in Other - Science

2007-11-05 21:34:02 · 13 answers · asked by Luke B 1 in Earth Sciences & Geology

2007-11-05 21:30:24 · 15 answers · asked by Anonymous in Astronomy & Space

A 100 N table is pushed by a horizontal force of 40 N for 3 s. What is the velocity of the table at the end of 3 s? The coefficient of kinetic friction between the floor and table is 0.25.

Please identify the given, formula and solution..thank you!

2007-11-05 21:29:11 · 3 answers · asked by Anonymous in Physics

1. As presented in "Planet in Peril", what are some of the potential effects of the chemicals that can be detected by a "body burden" test?

2007-11-05 21:27:33 · 1 answers · asked by Phil 1 in Earth Sciences & Geology

A car has a mass of 1800 kg. It is traveling at a velocity of 17m/s northward. A gravel and sand delivery truck with a mass of 3000 kg moving at 20m/s southward collided head on with the car. They stick together upon colliding with each other. Find their common velocity after the collision.

please identify the given, formula and solution..,thank you..

2007-11-05 21:26:06 · 4 answers · asked by Anonymous in Physics

2007-11-05 21:17:24 · 2 answers · asked by jon 1 in Zoology