Science & Mathematics - 7 December 2006

Find a function whose derivative is Y=(x=1)(x-2) whose graph passes through the point (0,√7), any help would be appreciated!

2006-12-07 08:25:46 · 3 answers · asked by dudeman1623 1 in Mathematics

A student moves a 25kg box of books up a ramp inclined at 10° with the horizontal by pulling a rope attached to the box. The student pulls the rope with a force of 120N at an angle of 30° relative to the ramp.

a. Find the normal force of the block.

b. Calculate the force of friction between the box and the ramp if the coefficient of kinetic friction between the box and the ramp is 0.2

2006-12-07 08:25:07 · 1 answers · asked by Some Guy 2 in Physics

question using inversely variation

please provide detail (showing work)

The time T required to do a job varies inversely as the number of people P working. It takes 5 hr. for 7 volunteer to pick up rubbish from 1 mi. of roadway. How long would it take 10 volunteers to complete a job?

(using this system.... y= K divided over x so y= K/x) thankyou

2006-12-07 08:24:53 · 2 answers · asked by Anonymous in Mathematics

2006-12-07 08:23:39 · 10 answers · asked by puffy 1 in Engineering

Mark is pulling a 12kg cart at a constant acceleration of 1.5 m/s^2 along a horizontal floor with a downward force of 20N, 20° below the horizontal.

a. What is the magnitude of the frictional force that the cart is experiencing if the coefficient of friction between the cart and the floor is 0.2?

b. What is the acceleration of the cart?

2006-12-07 08:18:54 · 1 answers · asked by Some Guy 2 in Physics

2006-12-07 08:17:33 · 11 answers · asked by jeff w 1 in Astronomy & Space

a quick thank you to haysoos2 my fellow Canadian for answering my mosquito question. I love proving my brother wrong!!! Thanks again and you will be getting my best answer nod! I tried to respond via your email link but has yet to be confirmed. Good day eh!

2006-12-07 08:15:45 · 2 answers · asked by aynatay 1 in Zoology

A padlock has four wheels. Each wheel is numbered 0 to 9. How many different combinations are possible

2006-12-07 08:14:44 · 8 answers · asked by Anonymous in Mathematics

2006-12-07 08:12:37 · 4 answers · asked by Anonymous in Biology

2006-12-07 08:12:28 · 14 answers · asked by Anonymous in Engineering

An equilateral triangle has sides 12 cm.It is divided into three triangles of equal area by two line segments passing through one of the vertices. Determine the lengths of these lines.

2006-12-07 08:11:21 · 9 answers · asked by Anonymous in Mathematics

Just want to know at which point ordinary stone melts

2006-12-07 08:10:13 · 2 answers · asked by Rozz 1 in Chemistry

i know all the stuff that ppl do to monkeys in animal testing but what are these tests for?

2006-12-07 08:09:57 · 6 answers · asked by Anonymous in Zoology

2006-12-07 08:08:20 · 10 answers · asked by Dan H 1 in Earth Sciences & Geology

i'm doing a heat saving project and i need some ideas on ways to keep conduction, convection, and radiation from taking heat away from preheated soup.

2006-12-07 08:07:17 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-07 08:07:12 · 7 answers · asked by adriana v 1 in Astronomy & Space

What traits would be present in the parent plants used in this cross?

2006-12-07 08:06:00 · 5 answers · asked by chris102188 2 in Biology

2006-12-07 08:05:51 · 6 answers · asked by therealhoward 1 in Astronomy & Space

i am just asking this bcoz wen the yahoo answers asked me to extend the deadline of this question,pls consider this .

2006-12-07 08:05:11 · 2 answers · asked by firebolt_mahesh 1 in Geography

2006-12-07 08:03:53 · 6 answers · asked by Anonymous in Astronomy & Space

We just finished the units on oscillations and frequency and waves, but we did not do sound yet.

Thank you....

2006-12-07 08:03:26 · 2 answers · asked by crockett_1969 2 in Physics

if 500 gm of dextrose are dissolved in 600ml os water, with the final vol. being 1000ml,what is the % strength of the dextrose in the sol.?

2006-12-07 08:03:01 · 3 answers · asked by rimple 1 in Chemistry

2006-12-07 07:57:53 · 4 answers · asked by sweetlaughter434 3 in Medicine

2006-12-07 07:57:13 · 7 answers · asked by Anonymous in Mathematics

can this child be either type: O, A , B, AB, or all of these types?

2006-12-07 07:56:43 · 11 answers · asked by Anonymous in Biology

2006-12-07 07:55:23 · 20 answers · asked by Anonymous in Astronomy & Space

TRANSCRYPTORECIPITATION &
TRANSCRYPTORECIPIENT.
This was given to me in a dream, I have futuristic dreams and this was to me by a Dr., He said it was an Imprintation of an Event IN Time, and used to record Energy left over by historical events.
NO I am not on drugs, I am quite normal, but I thought this dream was cool, and it could be possible?? Your thoughts?? Don't worry I can stand ridiculious opinions.

2006-12-07 07:54:59 · 4 answers · asked by Anonymous in Astronomy & Space

The integral of e^(2x) / [e^(2x) + 3e^x + 2] dx.

The answer should be:
ln[(e^x + 2)^2 / (e^x + 1)] + C .
Please show how you arrived at your final answer. Thanks for your help:)

2006-12-07 07:53:32 · 2 answers · asked by Anonymous in Mathematics

Assuming the haggis has legs of equal length.

2006-12-07 07:53:08 · 19 answers · asked by Debbie 1 in Zoology

So the two points are (a,b) and (-2a,0) and when I plug that into the distance formula, I keep getting the wrong answer...what do you get?

2006-12-07 07:52:20 · 4 answers · asked by JitterBug589 3 in Mathematics