Science & Mathematics - 16 December 2006

Hello. I have just uploded onto Photobucket 16 calculus practice problems, all of which will be of similar content to my eventual final exam. Now, an answer to these questions would be nice, but is not necessary. Instead, I am concerned with and interested in THE METHOD as to how one could arrive to the correct answer, as well as an EXPLANATION as to why each step needs to be performed in relation to the ones that follow. Anybody who can break down and explain the contents of these problems to me in a SIMPLISTIC way would just be amazing in my book. So thank you very much should you decide to help enlighten me, as I appreciate this more then the words in this post could even begin to convey!

Question #5: http://www.i138.photobucket.com/albums/q271/Link3324/math5.jpg

By the way, This is NOT for any kind of required assignment. It is a guide to work from and to understand before the actual test. Any help would be greatly appreciated. THANK YOU!

2006-12-16 10:51:02 · 2 answers · asked by Anonymous in Mathematics

D=2r
and how do I solve for w if I have p=2l+2w

2006-12-16 10:48:33 · 5 answers · asked by karla g 1 in Mathematics

The male and female cardinal go from one window to the next jumping from tree limbs into the window, they go over the neighbors window and do the same thing. This has gone on for a year.

2006-12-16 10:46:38 · 8 answers · asked by Bruce A K 1 in Zoology

2006-12-16 10:45:36 · 2 answers · asked by miss jill 1 in Biology

Brent has 5 quarters, 3 dimes, and 2 nickels. Peggy has 3 quarters, 10 dimes, 3 nickels. What is the ratio of Brent's coins to the value of Peggy's coins?

2006-12-16 10:45:24 · 1 answers · asked by your wonderwall 5 in Mathematics

A 140 N block rests on a table. The suspended
mass has a weight of 69 N.

What is the magnitude of the minimum
force of static friction required to hold both
blocks at rest? Answer in units of N.

What minimum coeffcient of static friction
is required to ensure that both blocks remain
at rest?

2006-12-16 10:39:50 · 2 answers · asked by TheThing 2 in Physics

I have applied for a diploma in adult nursing (eventually topping up to BSc) and I've recently recieved an interview date. Im excited, but worried. I believe it's a vital and worthwhile job, but every nurse that I tell im going into the profession, just look at me like im stupid, the negative daily media reports don't help either. It can't be this bad, can it? I've always wanted to be a community/district nurse. Honest replies please!

2006-12-16 10:38:36 · 7 answers · asked by ali 1 in Medicine

The coeffcient of static friction between the
3.99 kg crate and the 34 degree incline is 0.336.
The acceleration of gravity is 9.8 m/s^2 .

What minimum force F must be applied to
the crate perpendicular to the incline to pre-
vent the crate from sliding down the incline?
Answer in units of N.

2006-12-16 10:38:31 · 1 answers · asked by TheThing 2 in Physics

thank you

2006-12-16 10:36:29 · 1 answers · asked by Anonymous in Botany

the distance between 2 cities is 240 miles. On the map, the cities are represented by dots 4 inches apart. What is the scale of the map?

2006-12-16 10:36:16 · 8 answers · asked by your wonderwall 5 in Mathematics

I am writing a project about animal sex organs for school, and I need to know whether a man's testicles are measured in terms of capacity?

Thanks in advance! ;)

2006-12-16 10:34:42 · 10 answers · asked by Anonymous in Zoology

In ΔABC, given that angles A = 38˚, B = 57˚ and C = 85˚ and side c = 32 cm find the length of sides a and b

2006-12-16 10:32:50 · 4 answers · asked by thomasgraham880 1 in Mathematics

There is a group of Geometry students I am working with, and there is a homework packet we have to finish. There was a question we came across and we are unsure of how to solve it.

Prove: The sum of the lengths of the perpendicular segments drawn from any point in the base of an isosceles triangle to the legs is equal to the length of the altitude drawn to one of the legs.

We have to find the picture/figure for it first and then reason it out. Can anyone help us?

2006-12-16 10:32:44 · 3 answers · asked by annoyingsquirrel 1 in Mathematics

2006-12-16 10:29:35 · 7 answers · asked by Anonymous in Zoology

I'm using an idea from the book "Vaccum Bazookas, Electric Rainbow Jelly, and 27 other Saturday Science Projects" by Neil A. Downie.

I'm making a "string nutcracker", which involves using string tension (or something like that) to generate large forces, capable of crushing a tough almond or probably something even tougher than that. I don't really understand the design really, and was wondering if there was anyone who had experience w/ this project and knew what materials i need. It says in the directions "tough wood" and other materials but it doesn't say how many feet or whatever. Thanks.

2006-12-16 10:29:22 · 5 answers · asked by Anonymous in Engineering

Other than general size, what, if anything, really differentiates a horse skull from that of a zebra?

2006-12-16 10:28:05 · 4 answers · asked by deadzebrainc 1 in Zoology

Our 5 year old son has become interested in Astronomy. This interest was put in full speed ahead drive this past week when my husband took him out to watch the Geminid Meteor Shower. We want to foster this interest, but neither of us have any clues about this hobby. I have researched this on the net and have time and time again read it is best to start them out with a good pair of binoculars as they can see a wide scope of sky with these instead of a telescope which will only focus on a small area of sky, thus making it harder to analyze what he is seeing. We are also planning a trip to a local planetarium and observatory to let him learn more.
Anyone out there who is into Astronomy and starwatching I would enjoy some feedback on how to introduce him properly and techniques so he doesn't become frustrated. I did read that this can be frustrating in the beginning until you learn how to find what you are looking for in the sky. Advance thanks!!

2006-12-16 10:26:41 · 20 answers · asked by P H 3 in Astronomy & Space

2006-12-16 10:26:28 · 6 answers · asked by Dave 4 in Zoology

2006-12-16 10:22:02 · 13 answers · asked by Anonymous in Weather

homework help!!how does fishing affect the water quality?

2006-12-16 10:20:30 · 6 answers · asked by daniellelee10 2 in Zoology

I believe it is a liquid, BUT just in case. Like is it measured by Gallons [liquid] or Ounces/Pounds [in some cases liquids, but more likely solids].

2006-12-16 10:16:52 · 9 answers · asked by rsan. <3 2 in Other - Science

they contain C=C


The general formula the formula is CnH2n+2


They are saturated

Some isomers are cis and trans

2006-12-16 10:16:45 · 5 answers · asked by jay 1 in Chemistry

same molecular formula and same molar mass but different structures

different molecular formulas and different molar masses

same molecular formulas with different molar masses


all of these

2006-12-16 10:15:14 · 6 answers · asked by jay 1 in Chemistry

They have a general formula of CnH2n+2


They have tetrahedral geometry


They are unsaturated

They are hydrocarbons that contain highest possible ratio of C to C

2006-12-16 10:14:12 · 4 answers · asked by jay 1 in Chemistry

I have heard, (I can't recall where), that the Earth's natural magnetic field is slowly declining. I have also heard that solar flares can disrupt the operation of electrical/electronic equipment. Would either of these natural phenomena affect the operation of electronic/electrical equipment? Please answer each query briefly, and provide links if possible.

2006-12-16 10:14:10 · 2 answers · asked by Dwain 3 in Other - Science

The area of a circle is given by A=(pi)r^2
If the radius of a circle is increased by 4 , the area is 100(pi). FInd the radius of the original circle

2006-12-16 10:13:59 · 3 answers · asked by John Frusciante 1 in Mathematics

2006-12-16 10:12:40 · 5 answers · asked by Mary Jane 2 in Physics

how to self-service an airconditioning unit

2006-12-16 10:09:15 · 1 answers · asked by jeffn 1 in Other - Science

Quantum mechanics explanations always seem to talk about probabilities as if they were real things instead of just observations of what the universe is actually doing. Is there an accepted QM theory that tries to explain things by proposing a sea-like background in the universe?

For instance, if you spill some oil on the surface of the ocean then in some ways it may seem like one thing or many things. Measurements would constantly vary because the ocean is always moving and shifting, yet the spill will more or less stick together (at least for a while).

If space-time is constantly moving (sort of like the ocean) and if particles are sort of like oil spills (both waves and particles) then couldn't that be a basis for an explanation of QM that Einstein wouldn't dislike?

It seems like this is so obvious that it must be wrong. Why isn't it correct?

2006-12-16 10:08:37 · 4 answers · asked by HappyEngineer 1 in Physics

2006-12-16 10:07:52 · 13 answers · asked by kofi18adu 1 in Mathematics