Science & Mathematics - 31 August 2006

2006-08-31 05:35:32 · 20 answers · asked by Keith 1 in Weather

A 500 litre tank in which chocolate milk is being mixed contains 460 litres of milk and 40 litres of chocolate syrup initially. Syrup is added to the tank at the rate of 2 litres per minute and milk is added at 8 litres per minute. The syrup and milk is kept thoroughly mixed and the mixture is removed from the tank at the rate of 10 litres per minute. The amount of syrup in the tank (in litres) is denoted by S and the time (in minutes) is denoted by t. assuming perfect mixing of the milk and syrup, find an expression S in terms of t.

2006-08-31 05:34:33 · 2 answers · asked by tidus07 2 in Mathematics

2006-08-31 05:33:37 · 4 answers · asked by retarded_question_guy 1 in Earth Sciences & Geology

what job that relates to technology contributes in utilizing chemical reactions?

2006-08-31 05:28:09 · 3 answers · asked by chris18_keruso 1 in Chemistry

2006-08-31 05:26:27 · 46 answers · asked by Spurs17 4 in Astronomy & Space

1/2 divided by 3/4

It says to use reciprocals...please help

2006-08-31 05:24:50 · 8 answers · asked by didyouseethat5 1 in Mathematics

2006-08-31 05:24:40 · 7 answers · asked by TOP DOG 4 in Other - Science

2006-08-31 05:24:11 · 10 answers · asked by sur2124 4 in Mathematics

2006-08-31 05:23:04 · 15 answers · asked by ? 6 in Zoology

2006-08-31 05:22:11 · 9 answers · asked by Anonymous in Mathematics

An object starts at time t = 0 with a velocity of v0 = +3 m/s and undergoes a constant acceleration of a = -16 m/s2.

a) At what time does the speed of the object reach zero?
b) How far from its starting (t = 0) position is the object at time t1?
c) At what time does the object again pass through the starting (t = 0) position?
d) If the object had initially been moving twice as fast (6 m/s), how far would it have gone before its velocity reached zero?
e) Suppose a second object begins moving with a constant speed of v = 3 m/s in the same direction from the same location at the same time as the object in part (d). At what time do the paths of these two objects once again cross?

2006-08-31 05:22:05 · 5 answers · asked by hardik p 1 in Physics

2006-08-31 05:18:59 · 18 answers · asked by steveehrlich2002 1 in Astronomy & Space

2006-08-31 05:18:45 · 19 answers · asked by ? 6 in Other - Science

2006-08-31 05:17:42 · 16 answers · asked by ? 6 in Earth Sciences & Geology

Which of the following factors help organize the ocean part of the hydrosphere?

A.pressure and temperature
B.temperature and moisture
C.pressure and salinity
D.temperature and salinity

2006-08-31 05:17:32 · 6 answers · asked by chaingangsoldier207 2 in Earth Sciences & Geology

2006-08-31 05:16:10 · 5 answers · asked by Anonymous in Biology

no bs please...

2006-08-31 05:13:10 · 2 answers · asked by Anonymous in Physics

2006-08-31 05:10:18 · 15 answers · asked by Anonymous in Astronomy & Space

2006-08-31 05:06:40 · 14 answers · asked by lilspongebob da freak_ keke 1 in Astronomy & Space

Suppose that two rectangles are similar, meaning that the ratio of their bases is proportional to the ratio of their heights. If their bases and heights are commensurable, prove that the ratio of their areas is proportional to the ratio of the squares of (or on) their bases. By taking halves, the same result obtains for similar triangles (why?).

What ratio am I trying to prove? And then, any help in proving it? Thanks.

2006-08-31 05:04:45 · 4 answers · asked by Jesse 2 in Mathematics

precise answers,websites needed

2006-08-31 05:04:00 · 6 answers · asked by Anonymous in Engineering

Grains of fine sand are approximately spheres with an average radius of 50 μm and are made of silicon dioxide. A solid cube of this material with a volume of 1 m3 has a mass of 2600 kg.

a)What mass of sand grains would have a total surface area (the total area of all the individual grains) equal to the surface area of a cube 1 meters on an edge?
mtotal = ______kg.

2006-08-31 05:03:32 · 4 answers · asked by hardik p 1 in Physics

If the bases of two pyramids have equal areas and the height of the two pyramids is equal also, why does it follow that the corresponding sections parallel to their bases have equal areas?

2006-08-31 05:03:21 · 2 answers · asked by Jesse 2 in Mathematics

cos athching all those documentaries, they seemlikie they are always working to feed the queen, rebuilding their nests and feeding the princesses-i need expert advice here

2006-08-31 05:02:00 · 7 answers · asked by Chunkylover53 3 in Zoology

We live at the top of a hill at we can't use any electronic device that has a speaker (or its equivalent) because of the constant interference of a radio station, or other sources.

2006-08-31 05:01:30 · 3 answers · asked by ozauary 1 in Engineering

Please and Thank you!

=]

2006-08-31 05:01:13 · 7 answers · asked by didyouseethat5 1 in Mathematics

2006-08-31 05:00:51 · 3 answers · asked by Anonymous in Engineering

i am now making a bicycle trailer and some parts requires a joint. i am using stainless steel pipes . it is very hard to cut out a 45 degree angle on a pipe- i know it is easy on a flat surface. does any body knows how to cut out a 45 degree off a stainless steel pipe with a diameter of 4 cm ? or is there another solution that will work the same?

2006-08-31 04:54:23 · 10 answers · asked by 47 2 in Engineering

Or is magnetism equivalent toTime itself?

2006-08-31 04:53:42 · 4 answers · asked by goring 6 in Physics

2006-08-31 04:52:47 · 6 answers · asked by abu a 1 in Physics