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Science & Mathematics - 8 December 2006

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

2006-12-08 13:54:19 · 5 answers · asked by g unit 1 in Geography

P = purple, pp = white. The offspring of a cross between two heterozygous purple-flowering plants (Pp × Pp) results in


a. all purple-flowered plants.

b. purple-flowered plants and white-flowered plants.

c. two types of white-flowered plants: PP and Pp.

d. all white-flowered plants.

e. all pink-flowered plants.

2006-12-08 13:49:30 · 5 answers · asked by Anonymous in Biology

Kinematics Question: Afigther plane flies horizontally at a constant speed of 200m/s. It carries a cannon inclined at an angle of 30 degress below the horizontal.
(a) If it takes 10s for teh projectile which has a muzzle velocity of 500m/s (with respect to the plane) to reach a target on the ground, find the height at which the plane is flying.

I don't understand the significance of the phase 'with respect to the plane' like what will change without this phase and what will change with this phase? What is muzzle velocity?
I got an answer of 2990.5m, is it correct?

(b)How far ahead of the target must the pilot fire the cannon to get a direct hit?
I got an answer of 4330m but I didn't take into account the speed of the plane so is the answer correct?

(c)Find the horizontal and vertical compotents of the velocity of the projectile just before it hits the target.
I got horizontal: 433m/s and vertical: 348.1m/s. Is it correct?

2006-12-08 13:48:18 · 5 answers · asked by Anonymous in Physics

my friend sais that time is just an illusion invented by humans to make life more organized so they can just say come at 9:00 instead of saying come when the moon apears to be three inches in the air but then we advansed it to be like no time no life is that true.

2006-12-08 13:43:10 · 16 answers · asked by jack mono 1 in Astronomy & Space

(sin^4x - cos^4x) / (sin^2x * cos^2x) = sec^2x - csc^2x
solve the left side to make it equal the right side, plzzzzzzzzzzz

2006-12-08 13:42:27 · 4 answers · asked by R3EBOK 1 in Mathematics

I am just wondering if any current vet students or recent veterinary graduates would share what type and how much experience they had before applying to vet school, as well as any suggestions on what I should do/get before applying. I will be filling out the application next fall and will have majors in Biology and Wildlife management and minors in Chemistry and Captive wildlife ( I am planning on going in to exotic/zoo medicine)

2006-12-08 13:38:57 · 1 answers · asked by D 7 in Zoology

2006-12-08 13:37:57 · 10 answers · asked by alvin_dominicano 1 in Astronomy & Space

anyone, anyone?

2006-12-08 13:37:41 · 11 answers · asked by jbrbbt 1 in Geography

Ten points for the best answer! = )

2006-12-08 13:37:08 · 11 answers · asked by *~SoL~ * Pashaa del Ñuñcaa. 4 in Physics

guys, i need it now... thanks =^_^=

2006-12-08 13:35:35 · 3 answers · asked by happiest MASK 1 in Chemistry

2006-12-08 13:35:06 · 17 answers · asked by Liz S 2 in Zoology

As we all know our climate is getting hotter and the ice caps are melting causing waters to rise. Also due to the climate shifts deadly supper storms have appeared, and will increase exponentially as temperatures rise. Further causes of ice melt down will result in sea levels rising and costal cities shall flood causing human relocations on massive levels. I believe as it progresses the earth will shift violently due to increased pressures on the plates in turn creating or speeding up the process of volcanic activity and earthquakes. I surmise that in places the waters will flash boil killing much of the oceans sea life and cause severe torrential rains lasting for months even maybe years at a time. In turn due to violent earth eruptions the possibilities of a nuclear winter could eventually put the earth in a cooling trend repairing the planet but most of the life on earth would be destroyed and whoever is left will have to rebuild. As we all know we use up this planet and abuse it daily we are only destroying ourselves.

2006-12-08 13:34:54 · 18 answers · asked by Mark M 1 in Earth Sciences & Geology

Ok, so Im working on a "reverse" z-score thign for statistics and just want to know if I have the corrct answer here. Is it -.85?

2006-12-08 13:33:47 · 2 answers · asked by Anonymous in Mathematics

Stars, Planets, Black Holes or what?

I personally like the theories that goes with it because they can be very out there and makes me think very deep.

What do you like the most about astronomy?

If you could add some answers to these other questions before I put them to vote, thanks.
http://answers.yahoo.com/question/index;_ylt=AgMwTsVIxqH9dykvO_dGEJTsy6IX?qid=20061208082447AA4fmsb
http://answers.yahoo.com/question/index;_ylt=Ao.UgVOUd5FTxv9Fz4X7W1fsy6IX?qid=20061208083903AAVEeg0
http://answers.yahoo.com/question/index;_ylt=AqwqAWG_XhYL3F55S15pAOjsy6IX?qid=20061208090635AAHpAqK
http://answers.yahoo.com/question/index;_ylt=AqJc.TBGvAeuPTx_Gd3QVeTsy6IX?qid=20061208095054AAbkb39
http://answers.yahoo.com/question/index;_ylt=AlfmMOsbfAdzRjya5HQXyNDsy6IX?qid=20061208151136AAp7U8j

2006-12-08 13:33:19 · 11 answers · asked by Sean 7 in Astronomy & Space

2006-12-08 13:30:54 · 8 answers · asked by keyona 2 in Medicine

I am a senior at high school. My dreams are to become a future doctor. I am currently taking AP Calculus, AP Chemistry, AP Physics, and took AP Biology. I feel that I am prepared to pre-med. My question is after all the hard work how did you approach the MCAT. If you passed, whats it like in med school. How hard is it? homework and hours wise? I am a very independent person and work till 1am to get my work done. Tell me about life in med school.

2006-12-08 13:29:21 · 2 answers · asked by avalentin911 2 in Other - Science

i want to know this because my friends always brag about their chromium rims.

2006-12-08 13:21:30 · 8 answers · asked by brad 1 in Chemistry

Also, please specify the diseases caused by them.

2006-12-08 13:21:00 · 5 answers · asked by ipm 1 in Zoology

i have a college placement test next week and i just can get the math!! i want to take classes that count towards my degree not classes to get to the ones i want please help!!!

2006-12-08 13:18:54 · 5 answers · asked by bigdaddyderekswifie 1 in Mathematics

In the New Jersey and Nevada gaming casinos, craps is a popular gambling game. One of the many bets available is the "Hard-way 8." A $1 bet in this fashion will win the player $4 if in the game the pair of dice come up 4 and 4 prior to one of the other ways of totaling 8. For a $1 bet, what is the expected result?
If you can get the answer please explain how you got it. Thanks

2006-12-08 13:18:13 · 4 answers · asked by wcr98 1 in Mathematics

As I was driving to work this morning I noticed these two almost rainbow-like things on the both sides of the sun. They were slightly elliptical, I think- I couldn't stare at them too long since I'd forgotten my sunglasses. Are these what people call solar flares? That sounds kind of spacey for what I'm talking about. I took some pictures with my camera phone:
http://img.photobucket.com/albums/v214/curlyace53/college/120806_08542.jpg
http://img.photobucket.com/albums/v214/curlyace53/college/120806_08541.jpg
http://img.photobucket.com/albums/v214/curlyace53/college/120806_08471.jpg

2006-12-08 13:18:08 · 13 answers · asked by mrmcdoughnut 2 in Weather

please show me how to prove that the left side equals one. prove identity. question: sin^2x (cot^2x + 1) = 1 ? anyone know the answer.. i bet it is a very simple problem that I can't figure out. thanks... p.s. the problem is not misprinted

2006-12-08 13:17:16 · 9 answers · asked by lx88xl 1 in Mathematics

don't know anything about it. except the definition. which is the rate at which an object is moving at a given moment in time. by the way what does df(t) mean?

2006-12-08 13:17:14 · 3 answers · asked by Flirtie 1 in Physics

Can someone explain really well and in an understandable way, how to do matrices?

2006-12-08 13:16:08 · 4 answers · asked by hanalulu2☺♥☻ 4 in Mathematics

2006-12-08 13:08:36 · 7 answers · asked by sidharth_manu 1 in Weather

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