Science & Mathematics - 6 September 2007

can someone tell me the difference between a reflector telescope and a newtronian telescope...thanks

2007-09-06 11:10:01 · 6 answers · asked by Anonymous in Astronomy & Space

2 0.375
4 0.188
6 0.125
8 0.094
10 0.075

These are the values of the graph. (x,y) I have to manipulate the x coordinates in any way so that they make what looks like a linear graph when u plot the points. Right now it looks like a curve...can anyone help?

2007-09-06 11:08:21 · 2 answers · asked by Anonymous in Mathematics

4x - 2 = 5x + 10 = 3x - 8 I need Help!!!!

2007-09-06 11:07:28 · 5 answers · asked by Patrice D 2 in Mathematics

and it cannot be a sponge

2007-09-06 11:05:50 · 6 answers · asked by Nikki 1 in Biology

there are two perfect number out of 100.
what are they

2007-09-06 11:04:52 · 4 answers · asked by Anonymous in Mathematics

Question

The electrolysis of an unknown pure substance resulted in two separate components. The original sample is a(n) _______. The resulting substances can be __________ or _________.


a. heterogeneous mixture b. solution c. compound

d. element

2007-09-06 11:02:01 · 1 answers · asked by edge0125 1 in Chemistry

There is a very long hallway, longer than the eye can see. Along the midline of its ceiling, there are light bulbs, spaced a few feet apart, for as long as the eye can see. A string hangs from each light bulb; a pull of the string turns the light bulb on, and another pull turns the light bulb off.
A woman begins walking down the hall and pulls every single string, turning all of the light bulbs on. A second woman begins walking down the hall and pulls every second string (2,4,6,...), thereby turning off each of those light bulbs. And then a third woman begins to pull every third string (3,6,9,...), thereby turning some light bulbs on and others off. And then a fourth woman does the same (4,8,12,...), and then a fifth woman (5,10,15), and so on. Eventually, the women are only pulling strings that are farther away than can be seen.
Of those that can be seen, which light bulbs are on?

You don't have to give me the answer, but how would you go about answering this?

2007-09-06 11:00:44 · 3 answers · asked by Anonymous in Mathematics

=]

2007-09-06 11:00:10 · 8 answers · asked by Anonymous in Astronomy & Space

To stop a car, first you require a certain reaction time to begin braking. Then the car slows down at a constant rate. Suppose that the total distance moved by your car during these two phases is 56.7 m when its initial speed is 75.0 km/h, and 24.4 m when the initial speed is 42.8 km/h. (a) What is your reaction time? s (b) What is the magnitude of the deceleration

How would I figure this out

2007-09-06 10:59:55 · 1 answers · asked by tjmierzwa 2 in Physics

If two sides of a square field were increased by five feet, the area of the field would increase by 245 ft squared. Find the area of the orginal square. Can anyone tell me how I would solve this problem

2007-09-06 10:59:02 · 7 answers · asked by Anonymous in Mathematics

2007-09-06 10:57:55 · 4 answers · asked by jay j 1 in Zoology

what are all the name bodies of the water

2007-09-06 10:57:11 · 5 answers · asked by Juice F 1 in Astronomy & Space

2007-09-06 10:57:09 · 17 answers · asked by Anonymous in Earth Sciences & Geology

2007-09-06 10:56:23 · 4 answers · asked by Harjizzle 1 in Mathematics

1) It takes you 9.5 min to walk with an average velocity of 1.2m/s to the north from the bus stop to the museum entrance. What is your displacement?

2.) Simpson drives his car with an average velocity of 48.0 km/h to the east. How long will it take him to drive 144km on a straight highway?

2007-09-06 10:55:03 · 8 answers · asked by bubblebee 2 in Physics

2007-09-06 10:51:26 · 5 answers · asked by gallo pollo 1 in Botany

I want to program one of these babies to make my furby say demonic crap to scare people.
I'm easily amused.

2007-09-06 10:50:54 · 2 answers · asked by Anonymous in Engineering

Watching piles being driven into the ground is an interesting sight -- the huge machine, the chug and puff and hiss of the engine and then the bang of the hammer. Suppose the hammer and the pile each weigh one ton. Then suppose the hammer drops on the pile from a height of two feet and the impact drives the pile one inch into the earth. What would be the average force of the pile on the ground as it penetrates that one inch?

a) One ton
b) Two tons
c) Twelve tons
d) Thirteen tons
e) Fourteen tons

2007-09-06 10:50:49 · 5 answers · asked by ? 6 in Physics

2007-09-06 10:50:40 · 15 answers · asked by Anonymous in Astronomy & Space

math

2007-09-06 10:48:44 · 14 answers · asked by san martin 1 in Mathematics

What is the temperature or example of how hot lightning is?

2007-09-06 10:45:38 · 9 answers · asked by DEE-TUH-DEE 1 in Weather

A bus traveled in a straight line (east) for 3.2hours, with an average velocity of 88km/h. The bus stopped for 20 minutes, and then went south for 2.8hours at an average velocity of 75km/h.

What is the average velocity for the ENTIRE trip (including the time spent while stopped)?

I wouldn't normally ask but when you have a substitute that knows nothing about what you're learning it's just hard to understand it!!

Thanks in advance....

2007-09-06 10:43:13 · 3 answers · asked by Anonymous in Physics

How do enzymes effect the equilibrium constant?

2007-09-06 10:42:46 · 2 answers · asked by dfgh d 1 in Chemistry

of course i know what less than and greater than is but what does a greater sign mean with a line under it.

2007-09-06 10:41:41 · 4 answers · asked by Anonymous in Mathematics

Guys, Im taking anatomy and I cant find this answer. Please help,,thanks

2007-09-06 10:41:30 · 5 answers · asked by Anonymous in Medicine

how come little birds aways hungry lol

2007-09-06 10:40:36 · 3 answers · asked by Anonymous in Zoology

Is the bottom of a building flat or round? Obviously the building is on the Earth, and the Earth isn't flatten. The use a grader and other tools to prepare the ground for the building though. Is that prepared ground flat, or the surface of sphere. More importantly, how much land would a HUGE building have to cover before the people building it had to worry about the difference?

2007-09-06 10:39:05 · 2 answers · asked by Anonymous in Engineering

Please post scientific answers, relating to weight and pressure.

2007-09-06 10:36:17 · 5 answers · asked by Vector 2 in Engineering

2007-09-06 10:35:41 · 6 answers · asked by lilmartinos 1 in Astronomy & Space

2007-09-06 10:35:16 · 1 answers · asked by Anonymous in Physics