Science & Mathematics - 11 October 2007

2007-10-11 11:43:55 · 5 answers · asked by LOVELY 1 in Mathematics

list you source plz...

2007-10-11 11:41:31 · 9 answers · asked by Hy34lif3™ 2 in Astronomy & Space

2007-10-11 11:41:18 · 3 answers · asked by Anonymous in Geography

This is a question in biology. Thanks for the help!!!

2007-10-11 11:40:53 · 1 answers · asked by TTU fan 2 in Biology

sttate the coordinates of the vertex of the parabola whose equation

2007-10-11 11:39:59 · 5 answers · asked by LOVELY 1 in Mathematics

Which reagent would you use to determine the distribution of the carbohydrate stored in leaves?
Benedict's solution or Iodine?
Please help. I know Iodine test for starch and Benedict's solution test for reduced sugars....so what is the right answer in this case?Thanks in advance...got class in 1 hour.

2007-10-11 11:39:27 · 1 answers · asked by bobbino11 4 in Biology

Advanced technology is needed to keep a
telescope, travelling at almost 30 000 km/h
while orbiting Earth, aimed steadily at one
tiny spot for a long time. this is for grad 9 science

2007-10-11 11:38:56 · 3 answers · asked by Anonymous in Astronomy & Space

A ball is thrown from the ground onto a roof of height 15 m from a distance of 7 meters away as shown in the diagram. The maximum height of the ball's trajectory is 3.4 meters above the top of the roof.


Find the initial horizontal component of the velocity.
??????
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(a) Find the required initial vertical component of the velocity, Vy.
Vy = m/s *
19 OK

HELP: The ball is at its maximum height. What does this tell us about Vf?




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(b) Find the time for the ball to reach maximum height.
t = s *
1.936 OK



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(c) Find the time for the ball to fall from the maximum height to the rooftop.
t = s *
.83 OK

2007-10-11 11:37:50 · 1 answers · asked by SEXXYSuzzy 1 in Physics

i also want to know what might be the advanige of each alternative. this is for grade 9 science

2007-10-11 11:36:39 · 1 answers · asked by Anonymous in Astronomy & Space

A ball is thrown with an initial speed of 30 m/s at an angle of 45°.The ball is thrown from a height of 11 m and lands on the ground.

(a) Find the time of flight.
t = s


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(b) Find the maximum height.
h = m


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(c) Find the distance from where the ball is thrown to where it lands.
d = m


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(d) Find the speed at the impact.
v = m/s

2007-10-11 11:36:03 · 1 answers · asked by SEXXYSuzzy 1 in Physics

If a meteorite is stony and has small rounded inclusions what does it suggest about the origin of the meteorite?
a) originated from the remains of a planet shield
b) originated from the remains or a plant core
c) originated from an ancient supernova event
d)originated from an undifferentiated planet

2007-10-11 11:34:13 · 2 answers · asked by maplelearfs 2 in Earth Sciences & Geology

I'm in Brisbane, Australia and it's 8:31am. and hot.

2007-10-11 11:32:55 · 11 answers · asked by artyfarty 2 in Geography

2007-10-11 11:32:46 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Which kind of metabolic poison would interfere with glycolysis?
a. An agent that reacts with oxygen and depletes its concentration in the cell.
b. An agent that binds to pyruvate and inactivates it.
c. An agent that closely mimics the structure of glucose, but is not capable of being metabolized.
d. An agent that reacts with NADH and oxidizes it to NAD+.
e. An agent that inhibits the formation of acetyl coenzyme A.
i think answer is B

What results if glucose is metabolized under completely anaerobic conditions?
a. Pyruvic acid immediately enters the Krebs cycle.
b. Pyruvic acid is converted by fermentation into CO2 and ethanol or lactic acid.
c. Pyruvic acid is converted back to fructose until the concentration of oxygen increases.
d. Pyruvic acid leaves the cytosol and enters the mitochondrial matrix.
e. Pyruvic acid is converted to NADH.
I THINK THE ANSWER IS B

Chemiosmosis links a hydrogen gradient to the production of ATP
i think its true

2007-10-11 11:32:45 · 1 answers · asked by Anonymous in Biology

2007-10-11 11:30:59 · 8 answers · asked by jeffhardygirl24_7 3 in Mathematics

2007-10-11 11:29:30 · 11 answers · asked by Anonymous in Parapsychology

2007-10-11 11:29:21 · 5 answers · asked by romy_melendez 1 in Chemistry

2007-10-11 11:26:49 · 7 answers · asked by Anonymous in Paranormal Phenomena

Okay, what is a woodpeckers niche, snake, deer, cougar, and a rabbit? Please help me out here! Thanks a bunch!!

2007-10-11 11:24:03 · 3 answers · asked by Anonymous in Zoology

For the polynomial function f(x)=2x^4-7x^3+11x-4

a) find the x-and y-intercepts for the graph of f. Round to 2 decimal places, if necessary.
b) Determine whether the graph crosses or touches the x-axis at each x-intercept

2007-10-11 11:20:12 · 4 answers · asked by Pinkigal 2 in Mathematics

A parachutist with a camera descends in free fall at a speed of 16 m/s. The parachutist releases the camera at an altitude of 70 m.
(a) How long does it take the camera to reach the ground?
b) What is the velocity of the camera just before it hits the ground?

i got 5.75 s and 44.2 m/s.... and got both wrong.... please help

2007-10-11 11:14:14 · 2 answers · asked by Pauly Walnuts 2 in Physics

please.

tell me which of the folllowing it is:

a: -8xy

b: 5xy

c: -xy

d: -22xy

2007-10-11 11:13:32 · 8 answers · asked by Pringle 2 in Mathematics

2007-10-11 11:12:11 · 3 answers · asked by derfla J 1 in Earth Sciences & Geology

2007-10-11 11:10:54 · 5 answers · asked by derfla J 1 in Earth Sciences & Geology

fired in a time of 10s Detemine the following
1)how fast was the bullet moving at half the maximum height

2007-10-11 11:09:32 · 1 answers · asked by Anonymous in Physics

I posted about an hour ago and i don't know if the answer the guy gave was correct. So im looking for a second opinion.
How do you get the rational zeros? And also how do you find the real zeros? If work could be shown it would be greatly appreciated.

2007-10-11 11:09:01 · 5 answers · asked by Anonymous in Mathematics

like you can see and not see some sun rays...but what is the word that you can see the waves?

2007-10-11 11:07:22 · 3 answers · asked by lisa 1 in Astronomy & Space

My son is having trouble adding and subtracting integers are there games that could help him learn it?

I would hire him a tutor but he has to many activities. Thanks

2007-10-11 11:06:55 · 3 answers · asked by MentoKings10 2 in Mathematics

(5x^3+6x-8) / (x+2)

now i worked it...pls tell me if my answers right??

(x+2) (5x^3-10x^2+26x-60)

bc i have no way of telling. and if wrong pls tell me wat i did wrong!

2007-10-11 11:06:00 · 2 answers · asked by Anonymous in Mathematics

a. Outside of genes.
b. In genes that code for proteins that are used in metabolic processes.
c. In genes that code for proteins that are used in supporting the structure of cells.
d. None of the above

2007-10-11 11:02:57 · 5 answers · asked by Hugo M 2 in Biology