Science & Mathematics - 5 December 2007

After you pick up a spare, your bowling ball rolls without slipping back toward the ball rack with a linear speed of v = 3.22 m/s (Figure 10-24). To reach the rack, the ball rolls up a ramp that gives the ball a h = 0.50 m vertical rise. What is the speed of the ball when it reaches the top of the ramp?
m/s

2007-12-05 12:23:03 · 1 answers · asked by Amber G 2 in Physics

Let f be a strictly increasing function on the interval [0,1]. Can the range of f ever consist of irrational numbers only?

2007-12-05 12:22:49 · 7 answers · asked by moshi747 3 in Mathematics

2007-12-05 12:21:21 · 6 answers · asked by Anonymous in Mathematics

2007-12-05 12:20:45 · 3 answers · asked by k.o. 1 in Botany

A 115 kg astronaut and a 970 kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.18 m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with the shuttle. What was the initial distance from the shuttle to the astronaut?
m

2007-12-05 12:20:39 · 1 answers · asked by Amber G 2 in Physics

how do waves affect the shore?
1.
2.
3.
i don't have my science book and i need his answer by tonght

2007-12-05 12:20:11 · 1 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-05 12:19:43 · 8 answers · asked by nportales@sbcglobal.net 1 in Mathematics

no calculators please

2007-12-05 12:19:06 · 1 answers · asked by chrys 1 in Mathematics

2007-12-05 12:17:47 · 6 answers · asked by buddy 2 in Medicine

FACTORING POLYNOMIALS

I have two problems.

1) Factor.

x^6 - 2x^5 + 7x^4

My answer is "not factorable." (Which means that it's impossible to factor.) My friend graded this, and she marked it wrong... Is my answer correct?

2) Factor.

m^4 + 8m^3 + 8m^2 +64m

My answer is (m + 8)(m^3 + 8m). Like I typed, my friend marked my answer wrong... Is my answer correct?

If I am wrong, please explain these two problems to me (and show your work).

If I am right, please tell me so.

Thanks for helping me!

2007-12-05 12:15:18 · 6 answers · asked by *smart smartie* 4 in Mathematics

2007-12-05 12:14:46 · 3 answers · asked by Rae 2 in Earth Sciences & Geology

We were shown a graph today in Biology, which showed the population of a certain type of Aphids throughout the 12 months of the year. The population increased greatly between the month of October and February. I was wondering why that happened at such a time, because where I live, the plants the Aphid feeds on have lost there leaves. I was unable to ask the teacher as the bell rang just then. My most reasonable guesses for this would be either this type of Aphid lives in the Southern Hemisphere, where October through February are the warmest months, or the Aphid thrives in cooler conditions, such as the moderate temperatures in, say, Florida. What are your ideas as to why this occurs?

2007-12-05 12:13:58 · 1 answers · asked by distnceswmmr 1 in Earth Sciences & Geology

I'm really having trouble with chemistry homework... I dont want homework answers, I just want help on how to do something.

I have to find the specific heat of a Iron. I dont know how to do it. I also have to determine the heat gained by water that is in a calorimeter that had iron heated to 100C put into the calorimeter.

So basically, can somebody tell me how to find specific heat of water and of metal.

Also, it isnt just regular water, it is water heated at different temperatures.

2007-12-05 12:13:52 · 1 answers · asked by Harry D 1 in Chemistry

identify the sample size. what is your recommendation for a desired margain of error of 1% and a confidence level of 99%.

help

2007-12-05 12:12:51 · 1 answers · asked by Anonymous in Mathematics

I need help by today! This sheet of paper is due tomorrow! HELP ME!!!!!!!! Below is a copy of the page.... Thank you so much if you help me! ♥


P.S. -- My page is the one that says REINFORCEMENT






Here it is :

http://www.mccsc.edu/~waronis/Chapter%2010/ESCh10worksheets.pdf

2007-12-05 12:12:13 · 2 answers · asked by Whitney W 2 in Earth Sciences & Geology

I need some info on the pathogens, bacteria, chlamydia, virus' and rickettsia. for example things like, whether they are direct or indirect, and causes, and diseases they cause.

2007-12-05 12:12:06 · 1 answers · asked by Anonymous in Biology

Please help me. Thanks in advance.

1.) Katie pushes on a cow with a force of 200 N while John pulls on the cow with a force of 250 N. If the cow pushes back with a force of 325 N, what is the resultant force vector?

2.) Amanda is riding her flying cow towards north wth a velolcity of 280 m/s. If the wind blows from the west at 50 m/s, what is her resulant vector?

3.) If Alex pulls a cow with a force of 890. N with a rope that is 25 degrees to the horizontal, what are the X and Y components of the force exerted by Alex?

4.) A cow jumps off a diving board witha velocity of 9.5 m/s at a vertical angle of 22 degrees to the vertical. What are the X and Y components of the velocity?

5.) Bob pulls a cow in a wagon with a force of 55 N at an angle of 38 degrees to the horizontal. What are the X and Y components of the force?

2007-12-05 12:11:46 · 1 answers · asked by Serena 1 in Physics

my son has a homework question, find 3 things around the house that are pyramid shaped and are 3-d, we can not come up with anything , please help

2007-12-05 12:10:38 · 3 answers · asked by hippychick3925 1 in Other - Science

...Even though the Deccan volcanism was going on, which one would think would reduce the sun's rays reaching the Earth, and ocean levels were dropping?

2007-12-05 12:09:33 · 1 answers · asked by dinotheorist 3 in Earth Sciences & Geology

Hi, is there an easy way to know if something is real solid 92.5 silver, and not sterling silver?

2007-12-05 12:08:34 · 2 answers · asked by Lola 4 in Chemistry

what is the probablitity ..
you roll a blue number cube and a green number cube. Find the probability


P(blue and green less than 7)

2007-12-05 12:08:31 · 2 answers · asked by Anonymous in Mathematics

I have a math test on thursday on identities and equations but i have trouble doing it, if you guys could help, really appreciate it, ill list some questions here and you can explain to me step by step how it works. thanks

Solve each quation algebraically for 0 < x < 2pie. Express roots in exact forms..
Cos(square)x - sin(square)x = 1
Sin(square)x - cos(square)x = 1

Consider the identity cos(pie - x) = -cosx
verify the identity numerically, when x = pie/6
for what values of x is the identity defined?

2007-12-05 12:08:26 · 1 answers · asked by playpwnsu 2 in Mathematics

((solving equations-variables on both sides)) i just want to compare answers to make sure im doing it right

2007-12-05 12:07:49 · 15 answers · asked by Anonymous in Mathematics

2007-12-05 12:05:16 · 1 answers · asked by M.Bear 1 in Chemistry

2007-12-05 12:04:15 · 4 answers · asked by brunaldhino 2 in Mathematics

does the size of the sample injected in a GC affect the retention time?

2007-12-05 12:03:30 · 2 answers · asked by Anonymous in Chemistry

How do Drafting and programs like CAD used for are they the same thing are they related. In general how do drafting and CAD improve engineering

2007-12-05 12:03:13 · 3 answers · asked by J39P 1 in Engineering

The A string of a violin is a little too tightly stretched. Four beats per second are heard when the string is together with a tuning fork that is oscillating accurately at concert A (440 Hz).

What is the period of the violin string oscillation?

Explain your work. Thanks!

2007-12-05 12:02:36 · 2 answers · asked by Anonymous in Physics

Solid barium carbonate is added to an excess of dilute nitirc acid

2007-12-05 12:01:23 · 1 answers · asked by moviefan254 1 in Chemistry

The AREA (not perimiter) of a Pentagon is 800, what is the lenght of each side??....(this is not my homeowork...i don't cheat likesome people.)

2007-12-05 11:59:14 · 1 answers · asked by K-LA 3 in Mathematics