Science & Mathematics - 29 January 2007

Franklin can do a job in 6 hours and Michael Hodges can do it in 4 hours. What part of the job can they do if they work together for y hours?

I think the first part is set up as 1/6 for franklin and 1/4 for michael then I think you are supposed to add them but from there I am lost.

Thank you for the help in advance!

2007-01-29 09:48:09 · 3 answers · asked by mike 1 in Mathematics

2007-01-29 09:46:36 · 9 answers · asked by Anonymous in Botany

This is the typical Physics problem with the wire and boom connected to a wall with a mass hanging on the end of the wire.

Does the tension in the wire increase or decrease when the wire is connected higher on the wall (meaning the angle between the wire and the boom increases).

2007-01-29 09:46:26 · 1 answers · asked by on_the_bb 2 in Physics

2007-01-29 09:45:16 · 2 answers · asked by Anonymous in Biology

(The Milky Way)

2007-01-29 09:42:48 · 11 answers · asked by M J 3 in Astronomy & Space

i have already asked this question..but can anyone give me a detailed answer?

2007-01-29 09:42:43 · 3 answers · asked by carolyn 3 in Chemistry

2007-01-29 09:42:19 · 5 answers · asked by Lady Twilight 3 in Botany

2. Comment, using complete sentences, on the effect of one low grade or high grade on the mean of the test scores.

i want to compare my answers to yours pls. help me, need more to understand I appreiciate your help tnx.

2007-01-29 09:41:15 · 3 answers · asked by hi h 1 in Mathematics

How would someonem go about doing a problem like this:
____% of 25 = 15?

2007-01-29 09:40:42 · 4 answers · asked by Anonymous in Mathematics

2007-01-29 09:40:28 · 4 answers · asked by PoppingBubbles<3 5 in Mathematics

what are sun spots on the sun?

2007-01-29 09:39:57 · 3 answers · asked by Eden B 1 in Astronomy & Space

how strong is the earth's magnic??

2007-01-29 09:39:34 · 2 answers · asked by alishokie 2 in Astronomy & Space

IT'S A SCIENCE QUESTION??? IF YOU KNOW IT..I WILL GIVE 10 POINTS TO YOU!

Jamal is in a car going north. he looks out his window and thinks that the northbound traffic is moving very slowly. Ellen is in a car going south. She thinks the northbound traffic is moving quickly. Explain why Jamal and Ellen have different ideas about the motion of the traffic?

10 points to you...;)

2007-01-29 09:38:58 · 13 answers · asked by Anonymous in Physics

The carbon deposits are inside the heat exchanger of a central heating boiler. Hence the need for a liquid solution.

2007-01-29 09:38:35 · 4 answers · asked by Anonymous in Chemistry

ok if you can can yuo please turn these mixed #s into a decimal?

15/16 of an inch

1 15/16 inches

if yuo can can you please help me? : )

2007-01-29 09:34:58 · 6 answers · asked by Anonymous in Mathematics

2007-01-29 09:32:46 · 17 answers · asked by nicky o 1 in Geography

Since everyone doesn't have the same opinions on what nice vs. bad weather is, or what types of weather they like or dislike, I'm surveying to see what range of answers I get. Please explain why you like or don't like certain types. For example, if you say you like sunshine, tell me why. If you dislike sunshine, again, tell me why.

2007-01-29 09:32:41 · 9 answers · asked by TPmy 2 in Weather

is there a terminal velocity or maximum speed which can be reached in space?

2007-01-29 09:32:11 · 12 answers · asked by Taylor G 2 in Physics

2007-01-29 09:32:08 · 18 answers · asked by Anonymous in Earth Sciences & Geology

people who believe in biorhythms claim that there three cycles that rule our behavior- the physical, emotional, and mental. Each is a sine function of a certain period. the function for our emotional fluctuations is:
E=Sin pi over 14 (x)
where x is measured in days starting at birth.

Emotional Fluctuations, E are measured from -1 to 1, inclusive, with
1 representing peak emotional well-being,
-1 representing the low for emotional well-being
0 representing feeling neither emotionally high nor low.
A. sketch a graph of this function.
B. find E corresponding to x=7,14,21, and 35.
Describe what you observe
C. what is the period of the emotional cycle ??????


help pleaseee????

2007-01-29 09:32:04 · 2 answers · asked by Anonymous in Mathematics

what is the scientific definition of time, mass, gravity and nature????

2007-01-29 09:31:36 · 4 answers · asked by kramaster 5 in Astronomy & Space

Ok in bio lab we had to heat up water at different temps...
then we put a test tube filled with yeast in the water.... Then we trapped the oxygen in the tube and seen how much the thermometer moved up or down.
When the water was warmer the scale went up and when it was cooler the scale moved down. I guess my question is what actucally happened ???

2007-01-29 09:31:08 · 4 answers · asked by not_your_average*chick 2 in Biology

2007-01-29 09:31:01 · 6 answers · asked by specialtrv 1 in Engineering

2007-01-29 09:30:39 · 13 answers · asked by silvera222000 1 in Mathematics

2007-01-29 09:29:52 · 4 answers · asked by Anonymous in Mathematics

how can i download New Cambridge Statistical Tables please help emergency case

2007-01-29 09:29:41 · 1 answers · asked by sara j 1 in Mathematics

ok well i need help on a Algebra quiz and i spent an hour tryin to figure it out:


1.Aimee is 246 miles from her destination, New York City. She is going an estimated 48.5 mph.
a.) find an equation between the distince and time it took to New York City. With m being miles and h being hour.

i think that was it. basically i need an equation finding it with the whole hour and miles thing. my teacher is a stupid pric and she didnt help me but help the BOYS. shes so weird tryin to get with one of them.

2007-01-29 09:28:49 · 2 answers · asked by CUrly girl 2 in Mathematics

is there any animal other that a worm with both functional sex organs?

2007-01-29 09:28:20 · 3 answers · asked by kramaster 5 in Other - Science

The temperature of a sample of copper is raised while a sample of silver is maintained at 20°C. At what temperature will the resistivity of the copper be two times that of the silver?

2007-01-29 09:27:17 · 2 answers · asked by Anonymous in Physics

Your'e in a cement block room with a solid door at each end. One door has a bomb attached to it and one does not but you don't know which has the bomb. There are 2 computers in the room. One only lies, the other only tells the truth. You can only ask 1 question (the same question) to each computer. How do you get out? I don't have the answer yet.

2007-01-29 09:25:53 · 4 answers · asked by Anonymous in Other - Science