Science & Mathematics - 25 November 2007

Does your body directly sense a gravitational field? Compare to what you would feel in free fall.

This is a question from chapter 6 of a physics textbook, please help if you can! Many thanks!

2007-11-25 13:21:30 · 3 answers · asked by Kiwikahuna 2 in Physics

Small segments of DNA which can "jump" from one region of

DNA to another are called ___________________________.

2007-11-25 13:19:42 · 2 answers · asked by David 2 in Biology

I am completely lost, can someone please help me understand how to find the reciprocal. Use this for example:

(1/3)(9-4)
Keep in mind that it is one third (one over three) times (9-4), I am completely lost, thanks

2007-11-25 13:19:36 · 2 answers · asked by feastofmagic03 2 in Mathematics

A person bounces up and down on a trampoline, while always staying in contact with it. The motion is simple harmonic motion, and it takes 1.90s to complete one cycle. The height of each bounce above the equilibrium is 45 cm. Determine the amplitude and the angular frequency of the motion. What is the maximum speed attained by the person?

Please tell the equation used and describe what was done in detail.....Thanks

2007-11-25 13:18:24 · 3 answers · asked by Jamgirl108 1 in Physics

with methylene chloride.

2007-11-25 13:17:39 · 4 answers · asked by ? 4 in Chemistry

2007-11-25 13:16:51 · 2 answers · asked by Guy B 1 in Chemistry

2007-11-25 13:16:48 · 20 answers · asked by Antonio M 1 in Astronomy & Space

2007-11-25 13:15:07 · 2 answers · asked by b.palmer98 1 in Geography

would gambling be outlawed?, would the stock exchange be pointless? would this be a better thing? would i forever keep going back 1 hour just as my alarm clock rings?

2007-11-25 13:14:37 · 3 answers · asked by Anonymous in Other - Science

2007-11-25 13:12:42 · 1 answers · asked by Lisaaa 1 in Physics

HELP! THIS HW IS SO HARD :(

2007-11-25 13:08:11 · 2 answers · asked by wowz 2 in Mathematics

We found this track in the Southern California desert near San Diego. It's not a deer, because we see deer tracks all the time. I am hoping the picture is clear enough for someone to identify what animal made it. Thanks!
http://i86.photobucket.com/albums/k83/JennyCrackCorn/track2.jpg
http://i86.photobucket.com/albums/k83/JennyCrackCorn/track1.jpg

2007-11-25 13:07:07 · 7 answers · asked by Anonymous in Zoology

1 Devise a measure of solute concentration that you would place on the label for the following case: You weigh out 2.56g of zinc iodide. you put the solid zinc iodied in a 500mL flask and fill the flask with water to the 500mL mark. you now have 500mL of a zinc iodide aqueous solution. on the label of the flask you write:


2. Two students need zinc iodide that is in solution in the following amounts;
student 1: 0.43g of zinc iodide
Student 2. 5.0x10^-4 moles of zinc iodide.
for each case use your 500mL of zinc iodide solution in exercise 1.

2007-11-25 13:06:47 · 2 answers · asked by Neha G 1 in Chemistry

2007-11-25 13:06:07 · 20 answers · asked by trackman 3 in Paranormal Phenomena

WHAT ARE THEY? ARE THEY DIFFERENT FROM PLANTS?
ARE DETERGENTS MICROORGANISMS?

2007-11-25 12:54:36 · 10 answers · asked by o. O! 1 in Biology

4Al + 3O2 --------> 2Al2O3

2007-11-25 12:46:59 · 2 answers · asked by Minette S 1 in Chemistry

2007-11-25 12:41:43 · 1 answers · asked by Anonymous in Biology

Is it a reflection of rays from the sun?

2007-11-25 12:39:11 · 11 answers · asked by Mr. Nobody 5 in Astronomy & Space

2007-11-25 12:37:52 · 6 answers · asked by Anonymous in Other - Science

I have a question that asks: What is the mass of a block of wood that weighs 6.0 Newtons?

Is there a formula for this, like mass x grams or some other?

2007-11-25 12:36:54 · 4 answers · asked by platypus 2 in Physics

i want to prepare 100mL of a 0.125M solution of zinc iodide from the stock solution. how would i do this? assume you have a 100mL flask availabe. this is called a dillution. it is crucial that you be able to do this type of calculation.
how many moles of solute are you going to want to end up with the 100mL solution?
. how many milliliters of solution are you going to need to take from the stock solution to get the moles in a?

2007-11-25 12:34:19 · 2 answers · asked by Anonymous in Chemistry

pls. answer my question......thankzzzzzzzzz

2007-11-25 12:34:13 · 6 answers · asked by marielle 1 in Astronomy & Space

As you can see Ladies and Gents our kids have crάpped this category with drab and boring questions, the bulk being ungrateful to their answerers; I hope my question would entertain you a bit;

So why Chinese roofs are crooked? What can you say about roofs of other cultures? How could you explain this variety?
Since this is physics category, analysis, speculations, and formulas are welcome; do not hurry, the first does not mean the best! I’ve never seen this question anywhere before not saying of the answer;

2007-11-25 12:33:01 · 2 answers · asked by Anonymous in Physics

Heres the problem:

Triangle EFG is isosceles, and
measure of angle E = x + 25 ,
measure of angle F = 2x + 30 ,
measure of angle G = 2x

Which of the following is true?
A. EF = EG
B. EF = EG = FG
C. FG = EG
D. EF = FG
E. None of the Above

2007-11-25 12:28:17 · 5 answers · asked by Bottle 3 in Mathematics

please help
i dont understand this.
thanks

2007-11-25 12:23:15 · 2 answers · asked by sally.webs 1 in Chemistry

Gayle runs at a speed of 3.45 m/s and dives on a sled, initially at rest on the top of a frictionless snow covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 18.5 m? Gayle's mass is 50.0 kg, the sled has a mass of 5.00 kg and her brother has a mass of 30.0 kg.
m/s

2007-11-25 12:22:43 · 1 answers · asked by Anonymous in Physics

Tell me your likes and dislikes about your profession, and your approximate salary if you don't mind. I'm looking into a college degree in radiography, and want to know any details you can provide me. PLEASE be detailed! Thanks!

2007-11-25 12:21:48 · 2 answers · asked by coughy bean 2 in Medicine

Why does Lamark's theory of Acquired Traits difficult to use specificly for the evolution of plants?

2007-11-25 12:20:47 · 5 answers · asked by Mokusan 1 in Biology

2007-11-25 12:16:47 · 47 answers · asked by ? 1 in Chemistry

a 10 kg object is being pulled to the left at a constant speed of 2.5 m/s. F norm is 80 and there is a 30 degree angle. find the applied force, F grav force, "mu" force, and the friction force.

Please help!! I know its a lot of work, but im soo stuck!!

2007-11-25 12:16:16 · 1 answers · asked by Fuzzyglasses 3 in Physics