Science & Mathematics - 17 October 2006

I'm doing a project relating to dish degtergent and so on. Though finding whether the oil/grease is removed from the surface is crucial. My science teacher says there is a way to tell, but is not sure, and she has approved of my project. Pleases give a way based on facts or other reliable sources. Do not give assumptions done by visuals and etc. No, I don't have all the science tech in the world, so try to keep it simple without using a bunch of science lab tools that an average person might not have. Please and thank you!

2006-10-17 13:51:06 · 3 answers · asked by paperclip 3 in Other - Science

2006-10-17 13:50:40 · 5 answers · asked by Anonymous in Mathematics

I would really really greatly appreciate it if you guys could help me with a few of these MC Questions.

1. Lenses produce images by the process of:
a.Refraction
b.Polarization
c.Elimination
d.Diffraction
e.Reflection


2.Which one of these is constant for all types of electromagnetic waves in empty space?
a.Speed
b.Frequency
c.Direction
d.Energy
e.Wavelength

3.What physical effect or phenomenon can only be explained using a particle picture of light?
a.Photoelectric effect
b.Rainbow
c.Doppler effect
d.Double-slit interference of light
e.Magnetic dynamo effect


I will be very grateful for everyones help

thank you

2006-10-17 13:49:51 · 2 answers · asked by Roman K 2 in Astronomy & Space

2006-10-17 13:49:36 · 4 answers · asked by bearbear 1 in Other - Science

2006-10-17 13:48:28 · 2 answers · asked by antwone 1 in Mathematics

WHAT % OF 42 IS 18???

2006-10-17 13:48:17 · 8 answers · asked by yourbiggestfan:) 4 in Mathematics

2006-10-17 13:47:17 · 3 answers · asked by bearbear 1 in Other - Science

I am looking for an ADC DAC that is easy to interface with a computer. USB or PCI interfaces are both good. I need to be able to respond to an analog signal comming in and have a feedback response within under 1ms (as fast as possible, but 1ms is a good start). Preferably something that is < $1000 too, most of what I have seen that can do this is > $3000. Any ideas? And I need 18 bit output resolution. Input resolution of 8 bit would be good enough.

2006-10-17 13:46:49 · 4 answers · asked by professional student 4 in Engineering

I have a homework thinga magig..and one question askes for me to list 5 different ways u can use percents..i only have 1.!
Discounts
can someone help me ?

2006-10-17 13:46:14 · 12 answers · asked by Anonymous in Mathematics

A local pizza place would like to make a hologram of a floating pizza above the store. How could this be achieved? I am not sure what their budget is and honestly I am not sure how to make holograms at all. I am hoping there is a very intelligent person out there who can give me step by step instructions and lead me in the right direction. Thank you.

2006-10-17 13:46:01 · 3 answers · asked by Chiari 2 in Other - Science

Regular Price: $7,800, Percent of Discount: 3%, Amount of Discount:???, Sale Price:????

2006-10-17 13:44:55 · 4 answers · asked by Caroline M 2 in Mathematics

i have a uvb booth next to my router and modems ( son has physoriosis) relitvly new router failed and is in the path of a small amount of light. coincidance?

2006-10-17 13:44:48 · 2 answers · asked by steven d 3 in Other - Science

As the 'Conservation Of Energy' rule is a fundamental law of physics, what would happen if it was disproven?

I have always considered the 'laws', as human finds/perspectives on the nature of life/universe. Are they really a definate? More than likely, but never forget they are OUR perspective.

2006-10-17 13:44:14 · 12 answers · asked by thertproductions 1 in Physics

A 9.0 GeV electron has the same De Broglie wavelength as a high energy proton. What is the kinetic energy proton?


How do u solve this problem

2006-10-17 13:42:54 · 3 answers · asked by steve 1 in Physics

What is a FM receiver? How does it work? Thanks in advance.

2006-10-17 13:38:57 · 3 answers · asked by pj 2 in Engineering

What is amplitude shift key (ASK)? And how does it work? What is an ASK tranceiver and receiver circuit?

2006-10-17 13:38:22 · 4 answers · asked by pj 2 in Engineering

2006-10-17 13:37:36 · 10 answers · asked by bbcranks 4 in Physics

how would you do simplify this? (imaginary #'s)

10i(2-2i) (5+i)

2006-10-17 13:37:07 · 4 answers · asked by Mia16 3 in Mathematics

i need to do a science fair project involving a hypothesis. any ideas?

2006-10-17 13:34:48 · 4 answers · asked by Anonymous in Other - Science

a projectile is launched upward from ground level with an initial speed of 98 m/s. how high will it go? when will it return to the ground?

2006-10-17 13:34:04 · 5 answers · asked by michchristine 2 in Mathematics

http://www.burningsoulsforum.com/forum/files/dayve/camelspider_200441722335_.jpg

As an acracnaphobic when a friend sent me link I was horrified, please tell me its a fake if not what type is it ugh i'm getting nervous just looking thinking about it!!!

2006-10-17 13:33:30 · 8 answers · asked by I'm better than you 4 in Other - Science

2006-10-17 13:32:41 · 5 answers · asked by dreamerfrvrp3 1 in Mathematics

I was recently talking to my Dad and said this: My theory on the Ice Age (or any Ice Age) is that an object hit the moon and made the Earth wobble, ever so slightly. This caused tides to mess up and eventually the planet froze. He backed this up with mars. Mars always wobbles because there is no major moon.

I'm not sure, tho. Any ideas?

2006-10-17 13:31:12 · 9 answers · asked by Anonymous in Earth Sciences & Geology

I have a research paper to do about a something is classified as gentic engineering. If you have any ideas please help!

2006-10-17 13:31:05 · 4 answers · asked by kyrsten425 1 in Engineering

2006-10-17 13:31:01 · 10 answers · asked by Devi C 1 in Other - Science

the top of a 15-foot ladder is 3ft farther up a wall than the foot of the ladder is from the bottom of the wall. how far is the foot of the ladder from the bottom of the wall?

2006-10-17 13:30:50 · 7 answers · asked by michchristine 2 in Mathematics

engineering device

2006-10-17 13:30:35 · 2 answers · asked by why 1 in Engineering

2006-10-17 13:29:16 · 4 answers · asked by Ray T 1 in Astronomy & Space

2006-10-17 13:28:34 · 4 answers · asked by erin 1 in Other - Science

280% of _______ is 418

*Has to do with % and explain!!!

2006-10-17 13:28:11 · 12 answers · asked by yourbiggestfan:) 4 in Mathematics