Jiskha Homework Help
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November 7, 2009
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Homework Help: Art: Photography

Recent Homework Questions About Photography

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science
what is the wavelength of radiation with a frequency of 1.50 times 10^13s-1? Does this radiationhave a longer or shorter wavelength than red light? also... What is the energy of a photon of microwave radiation with a frequency of 3.20 times 10^11 s-1?
Tuesday, November 3, 2009 at 10:17pm

biology
examine the intetnet structure of the leaf drawn say how the different layer are suiled for the function of photosynthes
Tuesday, November 3, 2009 at 5:48pm

ap bio
Hornworts differ from mosses and liverworts in containing: a. small leaves b. photosynthetic sporophytes c. gametphytes d. sporophytes e. spores Well, First I thought ok its small leaves and that was wrong. Next I thought it would be spores and that was wrong. My next guess wo...
Monday, November 2, 2009 at 9:26pm

math
a museum curator has 203 wildlife photographs. she wants to display them in groups of 8. how many groups of 8 can she make? the answer is 25 r3 but i want to know if i drop the remainder,tell whats left over or increase the quotient by one.
Monday, November 2, 2009 at 5:07pm

10th grade English
This is my short story essay. I've put some conversations now and then so please take that into account. I would really appreciate if you could fix any mistakes, awkward phrases or even how to make this essay a better writing. Thank You ¡®Honk! Honk! Move out of ...
Thursday, October 29, 2009 at 5:18am

SCIENCE
WHICH PROCESS PRODUCES MOST OXYGEN IN ATMOSPHERE PHOTOSYNTHESISI OR TRANSPIRATION WHICH GAS DOES PHOTOSYNTHESISI PRODUCE OXYGEN OR CARBON DIOXIDE GRAS--GRASSHOPPER-SNAKE-HAWK IF APART OF A FOOD WEB WOULD MORE MORE ARROWS POINT TOWARD OR AWAY FOR THE SECOND LEVEL CONSUMER WHY
Wednesday, October 28, 2009 at 6:52am

Chemistry
Ionization energy is defined as the minimum energy required to remove an electron from the ground state (n0) to infinity (n∞). Determine the wavelength of radiation required to ionize the hydrogen electron from the n = 2 energy level. Calculate the energy (Joules) associ...
Monday, October 26, 2009 at 4:01pm

Japanese
How do I write the following four sentences in romaji: 1. Is this book yours? 2. Your money is over there. 3. There is your pencil. 4. Here is your photo.
Friday, October 23, 2009 at 8:36pm

english
The photo me, shows an intelligent girl whose life might seem perfect. I have a smile on my face and I seem extremely happy, but when you look deeper into my eyes you see sadness and struggle. Struggle to be something my parents want me to be; the smile isn’t real the dim...
Thursday, October 22, 2009 at 5:08pm

science
Assignment says label the parts of a plant cell. I'm blind so I'm going to write the names and put their functions. Cell wall, strenghthens the cell. vacuole is where the cell sap is produced. cell membrane is on outside on the cell. It controls what goes in and out of...
Wednesday, October 21, 2009 at 5:12am

science
crossword puzzle about photosynthesis. this part of the plant is where the reproductive organs can be found (6 letters) flower? these parts of the flower were once the bud(6 letters) petals or sepals? which is right:) thankyou
Sunday, October 18, 2009 at 10:17am

operating system
Can someone tell me how I would make a process tree with the following data: F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD 4 S 0 1 0 0 80 0 - 764 select ? 00:00:01 init 5 S 0 2 0 0 75 -5 - 0 kthrea ? 00:00:00 kthreadd 1 S 0 3 2 0 -40 - - 0 migrat ? 00:00:00 migration/0 ...
Saturday, October 17, 2009 at 10:27am

math133
a photograph measures 9 in by 12 in. earl put it in a frame that addded 2in to everyside. find the ouside perimeter and total of the photograph and frame.
Thursday, October 15, 2009 at 9:39pm

english
Which of the following usually gets a source note on the same page it appears? a. Quote b. Photo c. Paraphrased Passage d. Statistics please help me it urgent!! thank you!
Monday, October 12, 2009 at 2:54pm

Biology
1. A famous scientist once said that wherever in the universe life exists, some of those life-forms must be colored. Why would the scientist make such a statement? 2. One of the accessory pigments used in photosynthesis is beta-carotene, a carotenoid found in high concentratio...
Monday, October 12, 2009 at 12:39pm

biology
why do plants produce far more sugar than they need? why do they not stop photosynthesis once immedaite needs are met?
Sunday, October 11, 2009 at 7:48pm

curriculum content
Which is the oldest art? A. Drama/theater B. Photography C. Dance D. Music
Saturday, October 10, 2009 at 8:32pm

english
Ranging from the use of pictures at the beginning og wtiting, to the birth of the photonic alphabet.
Friday, October 9, 2009 at 1:59pm

Physics
A hare and a tortoise compete in a race over a course 1.20 km long. The tortoise crawls straight and steadily at its maximum speed of 0.540 m/s toward the finish line. The hare runs at its maximum speed of 9.00 m/s toward the goal for 0.800 km and then stops to taunt the torto...
Friday, October 9, 2009 at 1:32am

space
does taking a photo from outer space help earth spherical shape?
Wednesday, October 7, 2009 at 6:19pm

Biology
CAM (crassulacean acid metabolism) plants such as the cacti differ from standard C4 plants such as corn in which of the following ways? a. CAM plants minimize photorespiration whereas C4 plants do not. b. CAM plants use both mesophyll and bundle sheath leaf cells for photosynt...
Tuesday, October 6, 2009 at 11:53pm

science
please could someone help me with these question please i have loked on websites but i am still stuck. true or false and i need to write a comment why:- plants photosynthesise 24 hours a day respiration uses up carbon dioxide thanks guys!
Tuesday, October 6, 2009 at 12:06pm

science
i need to answer these statements true or false:- ive answered some but stuck on others. 1)only animals respire - false 2)respiration uses oxygen 3)respiration uses up carbon dioxide 4)only green plants photosynthesise-true 5)all living things respire- true 6)plants use up and...
Tuesday, October 6, 2009 at 10:12am

Bio
why is energy absorbed twice in the light reactions in photosynthesis
Wednesday, September 30, 2009 at 9:32pm

Business English Memo
Scenario: You've been put in charge of planning a one day departmental training seminar with Dr. Melanie Dobler as the speaker. You must make travel arrangements for the speaker, reserve a company room large enough for the number of people attending, and requisiton any nec...
Monday, September 28, 2009 at 1:34pm

Communication Law Studies
Can publishing photos of people who are unaware that they are being taken can hold legal binding in court? If so how and under what statutes?
Monday, September 21, 2009 at 10:20pm

Communication Law Studies
Can publishing photos of people who are unaware that they are being taken can hold legal binding in court? If so how and under what statutes?
Monday, September 21, 2009 at 8:37pm

11th grade Biology
I have three questions that I can't find anywhere. 19) Organisms that are at the greatest risk when the dynamic equilibrium is upset would be the: A. Organisms at the top of the evolutionary tree B. Generalists C. Specialists D. Invertebrates E. All of the above 20) A majo...
Friday, September 18, 2009 at 3:30pm

Reading
If you had these to choose from Table of Contents Headings and Subheadings Glossary Index Captions for Photographs then where would you look to locate information on ancient Rome? And Where would look to find the date of the beginning of World War 1?
Thursday, September 17, 2009 at 5:42pm

11th grade Biology
Match the following.. 12. Moves in cycles from nonliving things to living things back to nonliving, etc. 13. Can be passed from one organism to another in a food chain. 14. Is constantly being lost from the biosphere. 15. Can be created by living organisms. 16. Involved in the...
Wednesday, September 16, 2009 at 1:35pm

Repost- Biology
Will someone please help me out.. I have been posted these questions for 7 hours .. but no one has helped me out..please help me out..I got to figure it out within today..please.. 1. Which of the following is a biotic factor that might affect the life of a water-dwelling organ...
Sunday, September 13, 2009 at 9:27pm

Biology
1. Which of the following is a biotic factor that might affect the life of a water-dwelling organism? A. Temperature of the water B. Speed of water current C. Pollutions in water D. Bacterial population in water My guess: D? 2. Which of the following things does NOT allow plan...
Sunday, September 13, 2009 at 2:56pm

Biology
1. Are the third-order heterotrophs consumed by gungal decomposers? My guess:Yes? 2. Which of the following fixes atmospheric N2 (nitrogen gas)? A. photosynthesis B. symbiotic bacterianon the roots of legumes C. uv light D. decay organisms E. autotrophs My guess: B? 3. Which e...
Sunday, September 13, 2009 at 2:44pm

French
I need to translate this paragraph. Can someone check my work? I didn't write it so I can't just change it to have only words I know so I need help to translate it. Thanks! I would like to travel if I had the time and the money. I would like to see the mountans of tibe...
Sunday, September 13, 2009 at 12:44am

AP Bio
This is the summary formula for photosynthesis: 6CO2+6H20 yields C6H12O6+6O2 Refer to the summary formula for photosynthesis. If you know the number of molecules or moles of any of the reactants used (or products produced), how would you calculate the number of molecules or mo...
Saturday, September 12, 2009 at 1:40pm

biology
4. Both photosynthesis and aerobic cellular respiration are examples of complex metabolic pathways, consisting of many linked chemical reactions that require enzymes to function. Briefly, explain two attributes of enzymes in catalyzing chemical reactions and in metabolic pathways
Saturday, September 12, 2009 at 12:54am

Math
Asha plans to place vacation photos of her friends on a square bulletin board measuring 72 units by 72 units. a) Which size of phot can be placed without any spaces or overlapping? 10 X 8 6 X 4 5 x 7
Wednesday, September 9, 2009 at 4:14pm

science
Please explain photosynthesis.
Monday, September 7, 2009 at 9:49am

science
photosynthesis and aerobic cellular respiration
Sunday, September 6, 2009 at 4:48pm

biology
How did the primordial atmosphere, photosynthesis, oxygen, the ozone layer, and the endosymbiotic theory influence the origin of living organisms?
Wednesday, September 2, 2009 at 1:40am

Physics
1. What is the weight of a 24kg mass on Mars if its surface gravitaional field = 3.5N/KG? a) 235.2 N b) 84 N c) 24 kg d) 6.86 kg 2. A space shuttle is placed in a circular orbit around the Earth. It then thrusts its engine and moves to a new orbit, as shown below. Which statem...
Monday, August 31, 2009 at 6:02am

Physics
(a) Identify the significance of scientists James Clerk in hertz’s research. (b) Explain the physics of why hertz was able to detect sparkling in small detector coil when the detector was located in the position shown on the diagram above. (c) Describe two tests Hertz car...
Monday, August 31, 2009 at 6:01am

GIS
What is the term for measuring spot heights using stereographic pairs of survey-quality aerial photographs?
Saturday, August 29, 2009 at 8:50am

english
Need to write a memo. Scenrio:You've been put in charge of planning a one-day departmental training seminar with Dr. Melaine Dobler as the speaker. You must make travel arrangements for the speaker, reserve company room large enough for the number of people attending,and r...
Monday, August 17, 2009 at 2:09pm

physics
In Bohr's model of the hydrogen atom, the radius of an orbit a. is proportional to n2. b. is smallest for the highest energy state. c. increases when a photon of light is emitted from an excited atom. d. can have any value that is larger than the ground-state radius. e. no...
Saturday, August 15, 2009 at 12:46pm

physics and geometry
ok proving that thest two angles are equal Gesh almost done lol :O h t t p : / /w w w .a n g e l f i r e. c o m / s ta r s / d h s ph y s i c s / f r ic t i o n . j p g ok How to prove this? Similar triangles. Notice the upper angle in that photo is a right angle (ramp to Fn),...
Tuesday, August 11, 2009 at 1:39pm

AP Physics
A glider on an air track carries a flag of length through a stationary photogate that measures the time interval td during which the flag blocks a beam of infrared light passing across the gate. The ratio vd = / td is the average velocity of the glider over this part of its mo...
Monday, August 10, 2009 at 7:30pm

AP physics
A glider on an air track carries a flag of length through a stationary photogate that measures the time interval [box]td during which the flag blocks a beam of infrared light passing across the gate. The ratio vd = l(italicized)/[box]td is the average velocity of the glider ov...
Sunday, August 9, 2009 at 1:06pm

social studies
My child is having problem memorizing the dates related to the battles and establishments of kingdoms.so was browsing to find methods to help him improve his memory,came across a site funnelbrain which provides a collaborative platform to study using flash cards,videos and pho...
Saturday, August 8, 2009 at 6:08am

english
What is the word Capitalized in the sentence: He is very ENTHUSIASTIC about photography.
Monday, August 3, 2009 at 1:54pm

algebra
Solve problem. Telephoto lens. find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. tel formula is 1/f=1/o + 1/i 1/250=1/2,000,000 + 1/i 5i(1/250)=(1/2,000,000 + 1/i)5i 1/50i = 5i/400,000i + 5i/5i 1/10i = 5i/80,000i + 5i/5i I=8,000 Is this...
Sunday, July 19, 2009 at 3:15pm

math..word problem
Tom and Fred are inseparable twins. They are in a five-person club. How many ways can these five line up for a photo if Tom and Fred must stand together?
Friday, July 17, 2009 at 6:35am

art
On the Internet, look up and list two or more definitions of the word "art" from different reliable sources. Be sure to properly quote and cite these definitions. See the "Resource Links" (in Course Materials for this unit) for useful sites. Then search the...
Friday, July 17, 2009 at 2:29am

biology
what happens to the CO2 and H20 that plants absorb from the surroundings during photosynthesis?
Thursday, July 16, 2009 at 11:34am

English
I had to do this hero characterization and I did rough draft of the assignment. The direction ask me to do this: This character may be one you encountered either as a child or adult, one that may have appeared in any medium: television, film, literature (stories, poems, drama)...
Wednesday, July 8, 2009 at 10:32am

Biology
Angiosperms (flowering plants) are the largest Phylum in the Plant Kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These plants have true roots, stems, leaves and flowers. The roots grow into the soil to anchor the plant in place and take up water and nu...
Tuesday, July 7, 2009 at 1:18pm

Pre-Algebra [Combinations]
Need help with these- 1.How many groups of 4 fabrics can be selected from 7 fabrics? 2.The school photographer wants to photograph 3 students from a club with 14 members. How many combinations can be made? 3.Philip wishes to check 2 books out of his school library. If the libr...
Thursday, June 25, 2009 at 6:05pm

French
You are on vacation in Paris, describe each attraction you visited. Can someone please check my work? Eiffel Tower The queue to get up the Tower was enormous, but, after an ice cream, I decided to go up. After 30 minutes of waiting in line, I managed to catch the lift. At the ...
Sunday, June 14, 2009 at 8:33pm

Art
On the Internet, look up and list two or more definitions of the word "art" from different reliable sources. Be sure to properly quote and cite these definitions. See the "Resource Links" (in Course Materials for this unit) for useful sites. Then search the...
Saturday, June 13, 2009 at 10:16pm

Biology
Cellular Respiration and Photosynthesis co-exist as paired metabolic processes. Photosynthesis uses light energy to convert carbon dioxide into glucose, a simple sugar, in two steps, the light dependent and light independent reactions. Oxygen is produced as a by product during...
Friday, June 12, 2009 at 7:24am

critical thinking
The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of th...
Saturday, June 6, 2009 at 11:31am

10th grade English
This is my English oral speech. Please check whether there are any mistakes or awkward phrases. Please help ASAP Published in 1974, Where the Sidewalk Ends by Shel Silverstein is a poem which depicts our typical human life. In this poem, he criticises our life full of distress...
Wednesday, June 3, 2009 at 5:08am

Chemistry
What is the energy of a single photon from a helium -neon laser that emits light 632.8nm?
Monday, June 1, 2009 at 5:33pm

Chemistry UGH
Help please! I can't solve any of these, would someone be as kind as to show me the answers? How many moles of NaHCO3 are in a 125.0 g sample of the compound? 3. How many moles are in 6.73 x 1024 water molecules? 4-5. AgBr, a chemical used in photography can be made with t...
Thursday, May 28, 2009 at 5:10pm

Physics
if light touching a surface has an intensity of about 1000W/m^2, how many numbers of photons per m^2 per sec does this show? wavelength of P=600nm
Thursday, May 28, 2009 at 11:09am

physics
The hydrogen atom consists of a proton with an electron in orbit about the proton. The laws of quantum mechanics determine that the radius of this orbit is 5.29x10^-11 meters. Therefore, calculate a) The electric potential the electron experiences. b) The next available orbit ...
Friday, May 22, 2009 at 11:14pm

physics
1.A spherical bowl(R = 20 cm) contains water(n = 1.33) and your pet gold fish who, is swimming 15 cm from the centre of the bowl. You however are 35.0 cm from the edge of the bowl-outside, of course. Describe the image your fish sees. 2.The hydrogen atom consists of a proton w...
Friday, May 22, 2009 at 11:12pm

Math
The aperture setting, or f-stop, of a digital camera controls the amount of light exposure on the sensor. Each higher number of the f-stop doubles the amount of light exposure. The formula n=log_2(1/p) represents the change in the number, n, of the f-stop needed, where p is th...
Wednesday, May 20, 2009 at 5:28pm

Math
The aperture setting, or f-stop, of a digital camera controls the amount of light exposure on the sensor. Each higher number of the f-stop doubles the amount of light exposure. The formula n=log_2(1/p) represents the change in the number, n, of the f-stop needed, where p is th...
Wednesday, May 20, 2009 at 3:28pm

english
Write a memo of 6–15 sentences based on the scenario given here. You’ve been put in charge of planning a one-day departmental training seminar with Dr. Melanie Dobler as the speaker. You must make travel arrangements for the speaker, reserve a company room large enou...
Saturday, May 16, 2009 at 4:07pm

science
how could you utilize a collection of photographs showing local plant and animal life to infer an area's climate?
Friday, May 15, 2009 at 10:27pm

Grammar
What kind of complement is the underlined word? 1.Email DAD a copy of the photograph tonight. Ans- direct object Is this correct? Thanks! -MC
Tuesday, May 12, 2009 at 11:33am

Grammar
Are all of these words in caps predicate nominatives? 1.Isn't this movie THE BLACK STALLION? 2.Have you met DR.CARLOS WHITMAN, Sally? 3.The winner of the first place ribbon for science is ROBIN SENAROS! 4.Email DAD a copy of the photograph tonight. Thanks! -MC
Monday, May 11, 2009 at 2:08pm

Physical Science
I need help with some of these questions: 1.If you look at a red leaf, what describes what happens when you see it? A.The leaf absorbs red light from our eyes B.Our eyes reflect red light back to the leaf C.Red light reflected from the leaf enters our eyes D.The leaf radiates ...
Saturday, May 9, 2009 at 11:17am

englih
The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of th...
Thursday, May 7, 2009 at 12:48pm

english
16. How could you combine the following two sentences into one compound sentence? The rabbit jumped into the bushes. The dog followed it. A. After the rabbit jumped into the bushes, the dog followed it. B. The dog and the rabbit jumped into the bushes. C. The rabbit jumped int...
Thursday, May 7, 2009 at 12:20am

CSS
How would I upload an image from photobucket to a website using css? I would also like it centered, top of page, like a banner. Thanks :)
Saturday, May 2, 2009 at 4:01pm

English
Any ideas on grouping students? It has to be an activity.The only thing I have found is this: Recycle greetings cards/magazine pictures. Rip or cut old greetings card into the required number of group members, shuffle and distribute amongst the pupils, for example five cards c...
Saturday, May 2, 2009 at 7:56am

art
Search the internet and find one specific example of each of the eight types of art listed below. Your examples should be by established artists and/or from museum collections online. Submit the URL for each example, a description of the art and an explanation of why the examp...
Friday, May 1, 2009 at 9:42pm

Quick science question #2
Why are the reactions in the 1st and 2nd stages of photosynthesis called "light reactions."
Saturday, April 25, 2009 at 5:55pm

10th grade
1.the flame of the candle or other burning matter always towards upward direction.why? 2.when the photos is taking by looking to the camera and later when the photo printed, why the photo always seems to look at the direction wherever we move around to it?
Friday, April 24, 2009 at 3:39am

BIOLOGY
What is the difference between PS-I and PS-II. where PS is for photosystem
Tuesday, April 21, 2009 at 2:02pm

Earth science
How long an exposure would a photographer need to photograph star trails that are complete circles? Why? The star Sirius is 4.3 light years from Earth. Determine the distance to Sirius in km and in astronomical units. THe moon's average distance from Earth is about 380,000...
Sunday, April 19, 2009 at 3:22pm

IPC
Explain whether the photons emitted by a bright light bulb are more energetic than those emitted by a dim light bulb of the same color. how does the color of the light bulb determine the amount of energy of the electromagnetic waves?
Wednesday, April 15, 2009 at 10:11pm

True/False science question
Is this question true? Autotrophs are photosynthetic organisms.
Wednesday, April 15, 2009 at 1:06pm

bio
Assignment: Photosynthesis and Cellular Respiration Energy acquisition is essential for all life. Whether the organism is classified as plant or animal, single-celled or multi-cellular, the exchange of energy and the formation of products consist of a series of chemical reacti...
Sunday, April 12, 2009 at 3:06pm

CHemistry
Research the role of chemistry within a specific industry. Identify chemical processes upon which the industry relies. Explore environmental impacts of the industry that are related either to the chemicals it uses or produces. Procedure Choose one of the industries listed belo...
Monday, March 30, 2009 at 1:56am

Business writing
Write a memo of 6–15 sentences based on the scenario given here. You’ve been put in charge of planning a one-day departmental training seminar with Dr. Melanie Dobler as the speaker. You must make travel arrangements for the speaker, reserve a company room large enou...
Sunday, March 29, 2009 at 10:37pm

History
I figured out that "We Can Work it Out/Day Tripper" were the first two music videos, they were released as the same single. I am having trouble finding a way to watch this original music video. I could not find any on Youtube besides a montage of photos with the two ...
Friday, March 27, 2009 at 5:30pm

biology
Which one of these occurs durning the light reactions of photosynthesis? a. carbon dioxide fixation b. g3P production c. NADPH production d. reduction in carbon dioxide
Wednesday, March 25, 2009 at 3:43pm

Business Writing
Write a memo of 6–15 sentences based on the scenario given here. You’ve been put in charge of planning a one-day departmental training seminar with Dr. Melanie Dobler as the speaker. You must make travel arrangements for the speaker, reserve a company room large eno...
Tuesday, March 24, 2009 at 6:19pm

PC Basics
1. Computers are classified by price, processing speed, capacity, and A. user friendliness. B. use. C. decade in which they were designed. D. physical size. 2. To get connected to the Internet, you must have a A. mouse. C. browser. B. fax machine. D. CD-ROM. 3. Which one of th...
Tuesday, March 24, 2009 at 1:26am

italian
I realy dont want this with a computer translation because it never comes out the right way could someone translate it for me? If I won 1.000.000 dollars I would go to Sardegna with all my friends for a whole year.To get their since we live in America we would take a plane rid...
Monday, March 23, 2009 at 6:45pm

Types of Business Writing
You've been put in charge of planning a one- day departmental training seminar with Dr. Melanie Dobler as the speaker. You must make travel arrangemnets for the speaker, reserve a company room large enough for the number of people attending, and requistion any necessary it...
Wednesday, March 18, 2009 at 10:07pm

Science
How are biomes and photosynthesis connected?
Monday, March 16, 2009 at 7:58pm

Biology
Explain how the alternate arrangement of leaves in Ivy plant increase photosynthesis? Please help me! I am stuck in this question!!!
Sunday, March 15, 2009 at 10:26am

physics
there is a figure that looks kind of like this: E6--------------------- E= -0.378eV E5--------------------- E= -0.544eV E4--------------------- E= -0.850eV E3--------------------- E= -1.51eV E2--------------------- E= -3.40eV the figure shown above shows the enrgy levels for a...
Saturday, March 14, 2009 at 11:01am

physics
please check these: Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges? a. strong b. weak c. electromagnetic d. gravitational i got A, but someone said C , so i just want to make sure How is a motor's mechanical en...
Saturday, March 14, 2009 at 10:57am

math
Jen wants to enlarge a 4 inch by 6 inch photo so that the longer side will be 14 in, how long will the shorter side be?
Friday, March 13, 2009 at 6:19pm

physics
please check these: A concave mirror with a focal length of 10.0 cm creates a real image 30.0 cm away on its principal axis. How far from the mirror is the corresponding object? a. 20cm b. 15cm c. 7.5cm d. 5.0cm B A diffraction grating that contains 650 472 lines/m is illumina...
Friday, March 13, 2009 at 5:46pm

psychology
1. The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful to...
Friday, March 13, 2009 at 8:00am

chemistry
We did a LAB where we used a spectrophotometer to measure the absornency of a solution. It was a bluish color, so the question is.... What could be done to modify this experiment if the original solution was colorless? HINT: you can NOT add a coloring agent such as food colori...
Wednesday, March 11, 2009 at 11:34am

psychology (social studies)
I'm suppost to find a site with a really ugly photo of Taylor Lautner. This is my hardest assignment yet!!
Sunday, March 8, 2009 at 4:22pm

computers
Its for a webdesign class at school. i already designed the interface in photoshop. "Take your completed interface page and using the knife tool slice it up into parts that should be segmented such as the header, content area, links, footer. Then, save for web and optimiz...
Thursday, March 5, 2009 at 10:40pm

Biology
What's the purpose of a blank, a postivie control and a negative control?? (say, for an experiement with a spectrophotometer).
Wednesday, March 4, 2009 at 1:10pm

English Project
I am making a photo essay. My theme is Peace, Love & Happiness. I need help finding a picture that shows all three of those in a picture. I looked on google but I dont find any good ones at all. Do you have any ideas? Please help me! I just need one more picture and Ill be don...
Tuesday, March 3, 2009 at 7:07pm

Algebra - check to see if correct
Telephoto lens. Use the formula from Exercise 67 to find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. (Section 6.7 (1/f = 1/0 +1/i) 1/i = 1/250 - 1/ (2*10^9) i=25.
Monday, March 2, 2009 at 6:49pm

dual nature of matter & radiation
Light of frequency 1.5 times the threshold frequency is incident on photo-sensitive material.If the frequency is halved & intensity is doubled,the photo current becomes 1. Quadrupled 2. Doubled 3. Halved 4. Zero
Monday, March 2, 2009 at 5:59am

HELP ME pLEASE. DUE TOMORROW D:
Four friends set up a a camera so that it would take a photograph of the group standing in a lne. They argued about who would stand where, so decided to take a photograph of every possible arrangement of the 4 of them. How many photographs need to be taken?
Sunday, March 1, 2009 at 11:42pm

Algebra
Telephoto lens. Use the formula from Exercise 67 to find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. (Section 6.7(1/f = 1/0 +1/i))
Sunday, March 1, 2009 at 6:57pm

physics
1. Calculate the frequency (Hz) and energy (eV) of green photons with wavelength of 555nm. Photon energy = hν, where ν = frequency in Hz and h = 6.626x10-34 joule-sec, the Planck’s constant. Keep in mind that: wavelengthxfrequency = speed. 2. Andy Ruddick can se...
Sunday, March 1, 2009 at 2:44pm

English
Hi! I could use some help. I am writing a photo essay and my theme is peace love and happiness. So I need to find pictures that show them. I need help finding pictures that show peace. I can not find any good ones. Please help me! I have checked google but they dont show the t...
Friday, February 27, 2009 at 9:43pm

biology
A plant whose reproductive parts produce nectar is also most likely to a produce sweet-tasting fruit. b have no parts that can perform photosynthesis. c have brightly colored reproductive parts. d rely on wind pollination. e suffer significant seed loss to sugar-seeking insect...
Monday, February 23, 2009 at 11:42pm

chemistry
what are general errors expected in a spectrophotometry lab?
Monday, February 23, 2009 at 5:20pm

photography
for photography class i have to copy a portrait photo that has different kinds of light. i am having the hardest time finding a famous black and white portrait photo that i could copy. any help? thanks!
Monday, February 23, 2009 at 4:53pm

chemistry
would the method of spectrophotometry or redox titration be a more accurate?
Monday, February 23, 2009 at 4:50pm

Word Problem
Photography reprints cost $0.52 each at a local photo shop. Through the mail, they cost $0.44 each plus $1.20 postage and handling. How many reprints must a customer purchase to make it less expensive to use mail order? Thanks!
Wednesday, February 18, 2009 at 1:59pm

Math
Photography reprints cost $0.52 each at a local photo shop. Through the mail, they cost $0.44 each plus $1.20 postage and handling. How many reprints must a customer purchase to make it less expensive to use mail order?
Tuesday, February 17, 2009 at 11:54pm

biology
h ttp://i726.photobucket. com/albums/ww263/fornss/b iology2.jpg?t=1234820797 (remove spaces)
Monday, February 16, 2009 at 5:02pm

college-- chemistry
I got stuck on this problem and I cannot figure out what to do or explain this problem. Please help me with this problem. The emission lines of one-electron atoms and ions can all be fit to the equation describing the spectrum of the hydrogen atom: E= -(2.18X10^-18J)Z^2(1/n^2f...
Monday, February 16, 2009 at 3:26am

college-- chemistry
I am having a problem with this problem from my homework. I need some help on this problem. Microwave ovens work by irradiating food with microwave radiation, which is absorbed and converted into heat. Assume radiation with wavelength=15.0cm is used and that all the energy is ...
Sunday, February 15, 2009 at 2:12am

college: Chemistry
I need help on this homework problem and I do not understand how to work on it. Please help me with this problem. The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function e...
Sunday, February 15, 2009 at 2:06am

College: Chemistry
Hi there, I need help on my homework for chemistry and I do not understand the step on how to work this problem out. Please help me with this problem: On a Sunday morning while having your breakfast you determine that you need about 2.95X10^(5)J to heat water for your tea in t...
Sunday, February 15, 2009 at 2:01am

science
why is photosynthesis critically important?
Saturday, February 14, 2009 at 7:59pm

chemistry
there are a number of differently collored molecules present in the spinach. Explain what roles these molecules might serve in photosynthesis
Saturday, February 14, 2009 at 11:28am

art history help please!
If you could please check these and just let me know which ones are correct! also if you have any input on a better answer, or atleast where i can find a better answer, i would greatly appreciate it! This artist painted scenes of upper-class recreation: Edgar Degas Claude Mone...
Thursday, February 12, 2009 at 3:07pm

biology
The light reaction of photosynthesis is very similar to" a. the electron transport chain b. the TCA cycle c. Beta-oxidation I think the answer is A. Can someone confirm my answer
Wednesday, February 11, 2009 at 9:48pm

english - essay fixed!! please check
IRRI, the International Rice Research Institute is the heart of Asia’s agricultural research. Established in 1960, IRRI headquarter is located in Los Banos, Philippines, and fourteen other offices are spread throughout different countries of Asia. IRRI carries a significa...
Wednesday, February 11, 2009 at 4:48pm

English - please check my essay!
IRRI Report The History of IRRI and IRRI’s Importance to the Rice Industry IRRI, the International Rice Research Institute is the heart of Asia’s agricultural research. Established in 1960, IRRI headquarter is located in Los Banos, Philippines, and fourteen other of...
Wednesday, February 11, 2009 at 4:44pm

English! please check my essay!
Importance of Rice and IRRI The History of IRRI and IRRI’s Importance to the Rice Industry IRRI, the International Rice Research Institute is the heart of Asia’s agricultural research. Established in 1960, IRRI headquarter is located in Los Banos, Philippines, and fo...
Wednesday, February 11, 2009 at 7:56am

advertising
I am seeking a contemporary advertisement (i.e. one that has appeared in the last five years) that touches on death. I am searching for something of which I could either print out or make a photocopy. If you could please give me a nudge in the right direction before 2:30 CST t...
Tuesday, February 10, 2009 at 8:17pm

college: Chemistry
Hi can someone help me with this other problem from my homework, The thermochemical equation is C6H12O6(s)+ 6O2(g)--> 6CO2(g)+ 6H2O(g) reaction is -2539.01 kJ/mol Part B) What is the minimum number of photons with wavelength of 645nm needed to prepare 135 grams of glucose? ...
Tuesday, February 10, 2009 at 1:16am

college: Chemistry
Hi there I need help with my chemistry homework There are two parts to the first question and i did the first part and i got E= -6.54E-18J. Part A) Calculate the energy (in J) of the photon associated with the transition of electron in He from n=2 to n=1. Part B) As the Value ...
Tuesday, February 10, 2009 at 1:11am

Chemistry
For my homework, there are two parts to the question. i did part a and I got E= -6.54E-18J. Part A) Calculate the energy (in J) of the photon associated with the transition of the electron in He from n=2 to n=1. Part B) As the Vaule of Z increases, does the wavelength of the p...
Tuesday, February 10, 2009 at 12:58am

Chemistry
Please help me with this question from my homework package What is the minimum number of photons with wavelength 645nm needed to prepare 135 grams of glucose? When the thermochemical equation is C6H12O6(s)+ 6O2(g)--> 6CO2(g)+ 6H2O(g) Reaction is -2539.01 Kj/mol
Tuesday, February 10, 2009 at 12:49am

physics
What are four situations where photovoltaic cells would have an advantage over other sources of electric energ?
Monday, February 9, 2009 at 9:34pm

physics
What are four situations where photovoltaic cells would have an advantage over other sources of electric energ?
Monday, February 9, 2009 at 8:57pm

chemistry
I am confused on how to even start this problem... A ground state H atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energy level. The atom then emits two photons: one of wavelength 1281 nm to reach an intermediate level, and a second to reach th...
Sunday, February 8, 2009 at 4:35pm

chemistry
I am confused on how to even start this problem... A ground state H atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energy level. The atom then emits two photons: one of wavelength 1281 nm to reach an intermediate level, and a second to reach th...
Sunday, February 8, 2009 at 4:35pm

photography
i was assigned a project to recreate a famous photo with my own black and white camera. it can be of anything that would be easy to recreate-people or places. i live in london. who are some famous photographers (portrait or other) or some famous photos that i could do? thanks!...
Sunday, February 8, 2009 at 4:00pm

Physics
How far does a photon (light) move in one nm in units of feet?
Sunday, February 8, 2009 at 2:37pm

english
This is a passage from Indian Education. I dont understand what to write for this question: Notice the similarities between the pairs of sentences composing paragraphs 29 and 31 and paragraphs 70 and 72, what point does Alexie make with the similarities? FIFTH GRADE 1. I picke...
Saturday, February 7, 2009 at 1:27pm

math
the width of a photograph is 4 cm more than 3/10 of the length. if the widthis 13 cm find the length
Thursday, February 5, 2009 at 9:17pm

art help needed
#1. Corot painted only in his studio using professional models for his subjects. a. true b. false 2. Photography as we know it emerged around 1840. a. true b. false 3. Claude Monet agreed with the outdoor painters of the Barbizon school in their conception of landscape as a &#...
Thursday, February 5, 2009 at 4:02pm

biology
wht gets energized at the beginning of photosynthesis
Wednesday, February 4, 2009 at 9:55pm

Chem
Why are different wavelengths used for red and blue dye in a spectrophotometer?
Wednesday, February 4, 2009 at 7:02pm

Chemistry
Why are different wavelengths used for red and blue dye in a spectrophotometer? Also..does a spectrophotometer measure concentration or absorbance?
Wednesday, February 4, 2009 at 3:23pm

Algebra 1
Please help. I need to convert this text into a trinomial equation. I have a 10x12" photo. I want to scan it and reduce it by 1/8 of the original size. Thanks
Tuesday, February 3, 2009 at 11:08pm

English:writing memo
Write a memo of 6–15 sentences based on the scenario given here. You’ve been put in charge of planning a one-day departmental training seminar with Dr. Melanie Dobler as the speaker. You must make travel arrangements for the speaker, reserve a company room large eno...
Monday, February 2, 2009 at 11:15pm

Art history
what are the major connections between the ashcan schools ethics and todays documentary photogrphers such as nan godin and corrine day?
Monday, February 2, 2009 at 3:54pm

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