Science & Mathematics - 6 July 2007

Please give a brief description for each cause

2007-07-06 04:58:37 · 3 answers · asked by uriel 1 in Engineering

X- 1/3 = - 3/4 ??

2007-07-06 04:57:55 · 9 answers · asked by kystik83 3 in Mathematics

2007-07-06 04:55:33 · 10 answers · asked by Anonymous in Astronomy & Space

or vice versa.

2007-07-06 04:54:01 · 5 answers · asked by Anonymous in Physics

Hi,

Can someone please help me. My daughter needs help with these geometry questions. I'm ashamed to say that i suck at geometry so any help that i can get will be much appreciated.

1)What is the area of a sector of a circle that has a diameter of 10 in. if the length of the arc is 10 in. ?

a)25 sq in
b)50 sq in
c)75 sq in
d)100 sq in

2)In which one of the following figures is AB=AC?
http://img254.imageshack.us/img254/7200/gfwa9.jpg

3)The circumference of the circle in the following diagram is 128 ft. What is the length of AB?
http://img516.imageshack.us/img516/1767/hgfrw6.jpg

a)16 ft
b)22.5 ft
c)45 ft
d) 105.5 ft

4)In the following diagram AE=2, CE=3, and DE=4.What is the length of BE?
http://img340.imageshack.us/img340/2729/jhjhjgr1.jpg

a)5
b)6
c)8
d)12

5)A sample of a plane geometric surface is the

a)surface of a sphere
b)side of a cylinder
c)side of a box
d)side of a cone

6)What is the angle supplementary to the angle measuring 165°12?

a)14°48
b)75°12
c)180°
d)60°

7)If two straight lines intersect and one angle is 30°, what are the other three angles?

a)30°,90°,180°
b)90°,90°,150°
c)30°,150°,150°
d)90°,150°,150°

8)The shortest distance from a point to a straight line is

a)a parallel through the point to the line
b)the perpendicular from the line to the point
c)the perpendicular bisector of the line
d)a vertical line through the point

9)Find the angle complementary to the angle 80°25.

a)9°35
b)90°
c)99°35
d)180°

10)Through what angle does the minute hand of a clock turn in 12 minutes of time?

a)12°
b)36°
c)72°
d)120°

11)What is the total area of a covered box with a length of 4 ft, a width of 3 ft, and a height of 6 ft?

a)38 sq ft
b)84 sq ft
c)96 sq ft
d)108 sq ft

12)A prism whose sides and faces are all congruent squares is a

a)cube
b)parallelepiped
c)pyramid
d)frustm

13)How would you find the volume of the solid in the following figure shown below?
http://img174.imageshack.us/img174/4118/52241994vn3.jpg

a)use the formula for the volume of a prismoid
b)use the formula for the volume of a frustum
c)you can find only an approximate volume of this figure
d)divide it into solids whose volumes you can find

14)A right circular cylinder has a volume of 500 cu in.If the base has a radius of 4 in, what is the altitude of the cylinder?Round your answer to two decimal places.

a)9.95 in
b)19.79 in
c)29.84 in
d)31.25 in

15)One advantage of the prismoidal formula is that you can use it to

a)calculate precise volumes of all prismoids
b)calculate both volume and surface area
c)determine volumes of figures that are not prismoids
d)estimate the volume of solids that are combinations of other solids.

16)A sphere with a diameter of 16mm has the same surface area as the total surface area of a right cylinder with the base diameter equal to the sphere diameter.How high is the cylinder?

a)8 mm
b)14 mm
c)16 mm
d)18 mm

17)The area formed by a plane cutting through a solid perpendicular to its axis is a

a)longitudinal section
b)cylindrical section
c)cross section
d)middle section

2007-07-06 04:52:39 · 8 answers · asked by pathirajaruchi 1 in Mathematics

If they took the oath, is to protect all life, as far as they can, or only in their work as doctors, but not their life outside that field.

It doesn't make sense to me, to train as a doctor, to then maim people!

2007-07-06 04:50:06 · 16 answers · asked by Anonymous in Medicine

2007-07-06 04:45:47 · 5 answers · asked by codrock 6 in Mathematics

For someone with a bachelor's in environmental engineering...can one get a job basically anywhere?

2007-07-06 04:45:02 · 2 answers · asked by james m 1 in Engineering

If I throw a ball straight up with an initial speed of 35 m/s, how long will it take to return to me?

2007-07-06 04:42:41 · 4 answers · asked by Chablisah 1 in Physics

and from there upward to many other places and
made secret camouflaged exits,
will the havoc occur around entire globe?

Should not we monitor that inportant juction
place more closely?

2007-07-06 04:42:10 · 10 answers · asked by Alexander 6 in Physics

2007-07-06 04:27:15 · 1 answers · asked by obsidion 2 in Chemistry

two airplanes leave an airport at the same time. One plane travels at 132km/h and travels due South while the other travels at 167km/h and heads due West. How far apart are the planes after 3h.

2007-07-06 04:23:49 · 6 answers · asked by Physics 101 1 in Mathematics

2007-07-06 04:21:16 · 5 answers · asked by ♥kenz♥ 2 in Mathematics

O.o

ok..

Ummm.... I really need this answered -_- Stupid packet work.

2007-07-06 04:19:00 · 9 answers · asked by animal_legendary_wolf 2 in Mathematics

2007-07-06 04:17:42 · 3 answers · asked by Anonymous in Zoology

Animals didn't evolve into two main groups.
Neither did other plants.
Why trees?

2007-07-06 04:14:42 · 5 answers · asked by Austin W 3 in Botany

2007-07-06 04:12:10 · 4 answers · asked by brandon_burdette 1 in Mathematics

a) decrease by a factor of 1
b) increase by a factor of 1
c) remain constant
d) increase by a factor of 4

2007-07-06 04:11:35 · 8 answers · asked by Anonymous in Physics

2007-07-06 04:11:34 · 4 answers · asked by qrund 3 in Chemistry

2007-07-06 04:09:57 · 4 answers · asked by kidosha 2 in Medicine

please give me a scientific explanation rather than spiritual. i already know god made it that way, but he always works with
natural laws too.

2007-07-06 04:09:44 · 5 answers · asked by the lion and the bee 3 in Physics

i'm going to be a sophomore in high school next school year, and i'm signed up to take honors chemistry. i'm taking honors algebra 2 next year and i got an A average in honors bio last year, but i never understood how some of the chemical things (like amino acids and such) work... should i be worried about chemistry?

2007-07-06 04:07:21 · 8 answers · asked by skele39 2 in Chemistry

What happens if your on both the drugs at the same time??

2007-07-06 04:07:15 · 4 answers · asked by Anonymous in Medicine

2007-07-06 04:06:43 · 2 answers · asked by Anonymous in Engineering

Sorted list is preferrable

2007-07-06 04:02:56 · 6 answers · asked by Anonymous in Geography

about the definition of amiciprism in the chapter refraction through a prism

2007-07-06 03:55:03 · 2 answers · asked by sagar 1 in Physics

pretty much i wanna know what in ferterlizer that makes plants grow

2007-07-06 03:53:36 · 2 answers · asked by yvonne s 2 in Botany

I mean, where can I get the real data?, I have to present a job about that , I'm using OSLO ( is anyone familiar with it?..it looks like chinesse to me :/ ) , but for the lay out I don't know where can I get the power , focal lenght of the lenses, the distances among them and stuff.

PLEASE help me with this one , Optics is not my favorite subject and I'm not sure if I can read an spot diagram and stuff :/. THANKS

2007-07-06 03:50:15 · 4 answers · asked by jueves 4 in Astronomy & Space

im doing a project for maths and we have to find out about air flight. i really dont like the teacher and he doesnt like me so i want to impress to show im better then what he thinks. we have to include things like air pressure and bernoulli's principle but i dont understand any of it, so can anyone help me ?

2007-07-06 03:49:46 · 14 answers · asked by Anonymous in Astronomy & Space

Please let me know it as soon as possible..

2007-07-06 03:49:06 · 3 answers · asked by MDA 4 in Medicine