Science & Mathematics - 14 December 2006

2006-12-14 09:50:19 · 2 answers · asked by elnino_baller 2 in Geography

An aircraft is capable of cruising at a steady speed of 300 km per hour in still air. There is enough fuel on board to last 4 hours. On the outward journey, you are helped along by a tail wind of 50km/h which increases your cruising speed relative to the ground to 350km/h. you then realise that on the inward journey you will be flying into a head wind of 50km/h which will reduce your speed to 250km/h. What is the maximum distance you can fly from the airfeild and still be sure of having enough fuel to get back? Investigate these points of maximum distance for different wind speeds.

2006-12-14 09:50:05 · 2 answers · asked by Belinda E 1 in Mathematics

I know it has something to do with genetics...?

2006-12-14 09:47:48 · 4 answers · asked by Anonymous in Biology

Beans and rice eaten together on the same meal unleashed a chemical reaction that get you a much better nutricional value than just eating beans alone or eating rice alone (separate meals or sparate days) Is it true?

2006-12-14 09:44:26 · 3 answers · asked by Herbie 1 in Other - Science

2006-12-14 09:43:30 · 4 answers · asked by bjw3rt 1 in Mathematics

2006-12-14 09:43:06 · 1 answers · asked by Anonymous in Chemistry

I'm having some difficulty with some naming of compuounds.
This one is really getting on my nerves
Its an Ionic compound
KMnO4

2006-12-14 09:40:12 · 5 answers · asked by Donovan G 5 in Chemistry

the height of a building is 2000ft using the formula s-16t^2 how many seconds will it take to drop?

2006-12-14 09:37:52 · 3 answers · asked by Anonymous in Mathematics

yeah i dont get this...
it says:
The vertices of a rectangle are A(-1, 1) B(-1,7) C(8,7) and D (8,-1)

1. what are the coordinates of E on line AB so that the area of triangle EBC is 1/4 area of ABCD?
2. find measurement of angle BCE to the nearest degree

help please and thank you?!?!?!?

2006-12-14 09:37:39 · 7 answers · asked by xombiecats 2 in Mathematics

I hear that global warming will make the sea levels rise. How many feet above sea level is Ocala Florida? or Gainesville FL

2006-12-14 09:37:25 · 5 answers · asked by Hickory 2 in Geography

Are there sequences that can not be represented by a formula or general term?

2006-12-14 09:37:17 · 7 answers · asked by smiley5671 2 in Mathematics

How come we don't have 3 fingers and 3 toes for an example or 6 fingers and 3 toes? (Not sure what category to put my question under. I was looking for category of human atanomy, but since biology is the closet I'll put it here).

2006-12-14 09:33:17 · 16 answers · asked by Bobcat9 2 in Biology

2006-12-14 09:33:10 · 12 answers · asked by Anonymous in Physics

2006-12-14 09:31:52 · 12 answers · asked by Anonymous in Physics

2006-12-14 09:31:43 · 7 answers · asked by :) 3 in Geography

2006-12-14 09:30:22 · 7 answers · asked by dirtyoldman 4 in Astronomy & Space

2006-12-14 09:30:15 · 6 answers · asked by Chuck Dhue 4 in Physics

2006-12-14 09:28:35 · 5 answers · asked by dirtyoldman 4 in Physics

Either terry, chris, or kim will attend a party. The probability terry attends is 0.31 and the probability chris attends is 0.5. What is the probability that kim will attend?

a. 0.33
b. 0.5
c. 0.81
d. 0.19

2006-12-14 09:26:46 · 10 answers · asked by Eugene D 1 in Mathematics

When a large star becomes a supernova, its core, with a mass about equal to that of our sun, may be compressed so tightly that it becomes a neutron star (composed of only neutrons). Suppose the radius of the neutron star is 20 km (about the size of Rochester) and that it rotates once every 1.2 s.

(a) What is the speed of a neutron on the surface of the neutron star at its equator? m/s

(b) What is the magnitude of the acceleration of this neutron? m/s2

2006-12-14 09:26:34 · 2 answers · asked by ckielblock18 1 in Physics

if yuo stake out a plot of land with a steel tape measure using map measurements on a very hot day, will you enclose more or less land than on a very cold day?

2006-12-14 09:26:23 · 1 answers · asked by kobay 2 in Mathematics

A. 700
B. 107
C. 100
D. 27

2006-12-14 09:23:36 · 8 answers · asked by Eugene D 1 in Mathematics

HRW7 4-48E A rotating fan completes 1.61 103 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.187 m.
(a) Through what distance does the point move in one revolution?
m
(b) What is the speed of the point?
m/s
(c) What is its acceleration?
m/s2
(d) What is the period of the motion?
s
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2006-12-14 09:22:39 · 1 answers · asked by ckielblock18 1 in Physics

2006-12-14 09:22:20 · 18 answers · asked by Jalalcohol 2 in Other - Alternative

2006-12-14 09:22:10 · 6 answers · asked by prettyqbee07 1 in Biology

which is bigger?

-5/7

-1/3

2006-12-14 09:21:52 · 7 answers · asked by Captain705 1 in Mathematics

Find the remainder when 3^98 is divided by 5.

2006-12-14 09:21:18 · 8 answers · asked by Anonymous in Mathematics

2006-12-14 09:21:06 · 4 answers · asked by prettyqbee07 1 in Biology

2006-12-14 09:19:53 · 17 answers · asked by sarah T 1 in Biology

I dont understand their different in telophase (mitosis) and telophase II (meiosis)...i search in internet and there like 2N and 1N....what is the N stand for

2006-12-14 09:19:45 · 5 answers · asked by Anonymous in Biology