Homework Help: Science

Branches of Science

Recent Homework Questions About Science

science
give an example of a physical stimulus for touch, sight, and hearing. name the organs this sense is associated with.
Sunday, November 4, 2012 at 10:21pm

Science (Microbiology)
The "resistant" threshold for gemifloxacin is >1 mg/L while the "resistant" threshold for sulfamethoxazole is >512 mg/L. Explain why there might be this great disparity of values in resistance thresholds (512-fold) for each antibiotic ...
Sunday, November 4, 2012 at 10:10pm

7th grade science ASAP please!
1. Which of the following form the main components of our body cells? (1 point) carbohydrates and proteins fat and phosphorous proteins and iron nucleic acids and calcium 2. Organic compounds always contain______. (1 point) water oxygen nitrogen carbon 3. Which of these is a ...
Sunday, November 4, 2012 at 7:40pm

science
How long would it take a radio wave with a frequency of 5.1 × 105 Hz to travel from Mars to Earth if the distance between the two planets is approximately 8.00 × 107 km?
Sunday, November 4, 2012 at 9:29am

Physical Science
When you do 100 J of work on the handle of a bicycle pump, the pump does 40 J of work pushing the air into the tire. What is the efficiency of the pump?
Saturday, November 3, 2012 at 8:58pm

Science
Full form of MRI
Saturday, November 3, 2012 at 8:29pm

Science
Which one of the following is incorrect at room temperature? a.Water is liquid at 1 atmosphere b.ozone is gas at 1 Atmosphere c.O4 EXISTS AT VERY HIGH PRESSURE d.CH4 IS LIQUID AT LOW PRESSURE
Saturday, November 3, 2012 at 7:49pm

SAT Essay
Assignment: Can knowledge be a burden rather than a benefit? Plan and write an essay in which you develop your point of view on this issue. Support your position with reasoning and examples taken from your reading, studies, experiences, or observations Essay: Knowledge can ...
Saturday, November 3, 2012 at 7:14pm

Computer Science
Question #1. 1. Say that L is regular over 0, 1. Is the set, {x|x = 0y,y ∈L } also regular? 2. For two regular languages (a) Is M*L=L*M for any alphabet? (b) Is it true if the alphabet is only {0,1}? (c) Is it true if the alphabet is only {0}? 3. If L is regular, is the ...
Saturday, November 3, 2012 at 11:32am

7th grade science Ms. Sue please check
Hi! Can you check my answers please and I need help on 4 and 5 I cannot find the answers!!!! Please help! 2. _____ transports materials within a cell and between cells and makes up ______ percent of most organisms. (1 point) Fat; 60 Protein; 40 Sugar; 75 Water; 50 3. Which of ...
Friday, November 2, 2012 at 11:08pm

7th grade science Ms. Sue pleae only 1 question
1. Gene therapy research uses _______ to alter defective hereditary material. (1 point) bacteria cells interferons viruses Is the answer viruses? Or maybe its cells?
Friday, November 2, 2012 at 10:56pm

Science
1. Who is an oncologist ? 2. Allergic reactions are caused by antibodies of which group?
Friday, November 2, 2012 at 9:24pm

Science
Choose the CORRECT statement concerning blood vessels. A. Venules control blood flow through capillaries B.Arterioles drain blood from capillaries. C.Veins have thinner walls, but more valves than arteries. D.Nutrient exchange may occur along arterial vessels. E. All of the ...
Friday, November 2, 2012 at 8:08pm

Science
A mixture is prepared by adding 100 ml of 0.10M Na2CrO4 to 100.ml of ).10 N AgNO3. A precipitate forms in this mixture. The precipitate is separated from the mixture by filtration. Question: What quantity of solid product is produced?
Friday, November 2, 2012 at 6:47pm

science(reading)
"he proved the existence of neutrons - elementary particles devoid of any electrical charge. In contrast with the helium nuclei (alpha rays) which are charged, and therefore repelled by the considerable electrical forces present in the nuclei of heavy atoms, this new tool...
Friday, November 2, 2012 at 5:07pm

personal statement
this is my personal statement. plese check my grammar and what other stuff i can add or remove? thanks Ever since I was a little kid and till a year ago, I really didn’t know what I wanted to be in life. I imagined myself to be a teacher when I was 8 years old. As I grew ...
Friday, November 2, 2012 at 2:54pm

Science
How does the discovery of seafloor spreading help to explain the mechanism behind why plates move? Explain your answer.
Friday, November 2, 2012 at 1:35pm

pe
pe and science objectives
Friday, November 2, 2012 at 3:15am

Science
Use Dr.Vents results. Examine the graph . To increase the solubility , would you increase or decrease the temperature .
Thursday, November 1, 2012 at 8:51pm

Science
If 200ml of water were used instead of 100ml,how many grams of the compound would dissolve at 40c
Thursday, November 1, 2012 at 8:38pm

Science
Each student is pulling with a force of 10 newtons
Thursday, November 1, 2012 at 7:47pm

science
although each place on earth has its own climate,they can be grouped based on certain overall characteristics.what are the keys factors that scientist use to determine the climate of a particular place
Thursday, November 1, 2012 at 5:31pm

science
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?
Thursday, November 1, 2012 at 2:15pm

Science- Please Help
Is sledding done better when the air temperate is 25 degrees Fahrenheit or 0 degrees Fahrenheit? Why?
Thursday, November 1, 2012 at 12:34pm

Science- Please Help
If glaciers worldwide were to melt, would temperature around the glacier rise, fall or remain the same as the glacier was melting?
Thursday, November 1, 2012 at 12:33pm

elementary
please give me response.i don't have any idea from this science project. research graphic organizer we select dolphin.how to prepare that dolphin.which one is the best thing.can u explaine me
Thursday, November 1, 2012 at 11:35am

science
i mean how is an franken storm form
Wednesday, October 31, 2012 at 8:01pm

science
how is the menan buttes likely to look in future geologic ages
Wednesday, October 31, 2012 at 7:55pm

science
when phenolphthalein is added to ammonium hydroxide the color of the final solution is pink?
Wednesday, October 31, 2012 at 7:37pm

Science
Describe the steps in the process by which nitrogen from fertilizer used on farmlands located many miles away ends up in the Mississippi River
Wednesday, October 31, 2012 at 4:48pm

science
what is a ph scale? what is a acid? what is alkalis? what acid and alkais can you find around the house? (put pictures to go with this). when u are giving an explanation of what ph scale, acid and alkalis mean plz be as clear as possibe, use understandable low and simple ...
Wednesday, October 31, 2012 at 9:43am

Computer Science
Given three Strings, str1, str2 and str3, return the longest String. If all three Strings have the same length, return "same". There will not be a tie between two longest Strings. longestString("apple", "banana", "pear") → "...
Tuesday, October 30, 2012 at 11:18pm

science
presto abracadabra, first one then another. who am i?
Tuesday, October 30, 2012 at 8:37pm

science
Which of the following has the greatest effect on the formation of rain or snow? A)cloud cover C)air pressure B)humidity D)temperature My answer is C) am i right, if not please tell me what you got.
Tuesday, October 30, 2012 at 8:24pm

science(please help)
Which of the following has the greatest effect on the formation of rain or snow? A)cloud cover C)air pressure B)humidity D)temperature My answer is C) am i right, if not please tell me what you got.
Tuesday, October 30, 2012 at 7:37pm

Computer Science
public class RandomPhoneNumber { public static void main(String[] args) { int num1=(int)(Math.random()*7); int num2=(int)(Math.random()*7); int num3=(int)(Math.random()*7); int set1=(int)(100+Math.random()*642); int set2=(int)(1000+Math.random()*8000); System.out.println("...
Tuesday, October 30, 2012 at 6:35pm

science
umm is all light energy from the sun?Explain<-----i hate that when you have to explaim=n
Tuesday, October 30, 2012 at 5:23pm

science
If Wire A has a poterntial difference of 50V across it and carries a current of 2A. Wire B has a potential difference of 100V across it and also carries a current of 2A. Compare the resistances, rate of flow of charge, and rate of flow of energy in the two wires?
Tuesday, October 30, 2012 at 1:39pm

science
If the pressure of 20.0 mL of a gas sample is increased by 4 times and the absolute temperature is doubled, what is the new volume?
Tuesday, October 30, 2012 at 12:41pm

science
At a pressure of 2.00 atm, a sample of air consists of 0.20 moles of nitrogen, 0.65 moles of oxygen and 0.15 moles of argon. What is the partial pressure of the oxygen?
Tuesday, October 30, 2012 at 12:37pm

science
a temperature and pressure of 23.5°C and 1.05 atm, determine the volume of sulfur dioxide produced when 150.0 g of dihydrogen sulfide react in excess oxygen.
Tuesday, October 30, 2012 at 12:33pm

science
what is the force between two coaxially charged ring separated with distance 'd'? radius of both ring = 'R'
Tuesday, October 30, 2012 at 2:33am

science
what is the force between two coaxially charged ring separated with distance 'd'? radius of both ring = 'R'
Tuesday, October 30, 2012 at 2:31am

computer science
Python 3 For this option, you will first ask "how many rows?", and get a positive integer from them. Next, you will ask "how many columns?", and get another positive integer from them. The next step is to ask for an alignment of each column. They will enter...
Monday, October 29, 2012 at 11:00pm

math
Jennifer's scores on her first four science tests were 85, 76, 89 and 92. What score must she make on the fifth test to have the mean of the five tests equal 85?
Monday, October 29, 2012 at 10:09pm

Science
While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile's acceleration? How would I show the work and find this answer?
Monday, October 29, 2012 at 8:51pm

Physical science
Which is not an example of acceleration? a) A person jogging at 3m/s along a winding path b) A car stopped at stop sign c) A cheetah running 27m/s east d) A plane taking off
Monday, October 29, 2012 at 8:46pm

SCIENCE
Identify the primary biological foundations of psychology linked to behavior.
Monday, October 29, 2012 at 8:25pm

science
how many atoms of magnesium are in the magnesium molecule?
Monday, October 29, 2012 at 8:20pm

Senses- Science Grade 7
The semicircular canals sends impulses to the cerebellum? If false what is the correct answer? I do not know.
Monday, October 29, 2012 at 7:42pm

science
Give 2 different reasons why two muscles that act across the same side of the same joint are not necessarily redundant? Explain your reasons in detail and give at one real example that illustrates each reason. Question 2. : Relate their structure of a neuron to the anatomy of ...
Monday, October 29, 2012 at 7:08pm

Science
Name 4 animals that are different species. Cat Rabbit Sheep Elephant
Monday, October 29, 2012 at 6:09pm

science
What is a good way to study science? To be more specific Bellwork quizzes?
Monday, October 29, 2012 at 6:05pm

science
the distance from the earth to the moon is 240000 miles. if the speed of light is 2.998 x 10^8 meters per second, how long does it take for light reflected from the moon to reach our planet?
Monday, October 29, 2012 at 4:54pm

science
Relate their structure of a neuron to the anatomy of the cerebral cortex and spinal cord. Be sure to discuss the locations of soma, axons, dendrites, and supportive cells in each area.
Monday, October 29, 2012 at 3:39pm

science
2 different reasons why two muscles that act across the same side of the same joint are not necessarily redundant? Explain your reasons in detail and give at one real example that illustrates each reason
Monday, October 29, 2012 at 3:38pm

science grade 7
-80 decibels more than or less than -20 decibels??
Monday, October 29, 2012 at 3:58am

Science- physics
A 10 kg lawnmower is pushed along by a force applied at a 20* angle to the horizontal. If the mower accelerates at 3.4 m/s what is this force?
Sunday, October 28, 2012 at 11:35pm

Science
Sustainable development can be viewed as a compromise between which two groups? a) Those who value the environment and those who value economic development b) Those who value human rights and those who value animal rights c) Those who value economic development and those who ...
Sunday, October 28, 2012 at 8:57pm

science
High pressure systems are regions where air moves downward usually a few or no clouds form in this condition. Where r strongest winds found/
Sunday, October 28, 2012 at 6:20pm

science
Why do clouds form behind the moving cold front?
Sunday, October 28, 2012 at 6:18pm

science
Why do human beings use running shoes, winter boots, snowshoes, skis and flippers? Why are these not biological adaptations? Use animals as examples. Write 4-5 sentences.
Sunday, October 28, 2012 at 6:04pm

science
Why do humans use running shoes, winter boots, snowshoes, skis and flippers? Why are these not biological adaptations? Use animals as examples.
Sunday, October 28, 2012 at 4:58pm

Science
In the topic of centre of gravity why is it difficult to topple a doll in a circular base.
Sunday, October 28, 2012 at 2:01pm

physical science
A substance whose 0xidation number decreases during a chemical reaction
Sunday, October 28, 2012 at 8:35am

science-physics
What is the formula to calculate the speed of the electron the has a mass of 0.910000000000000000000000000000 kg and a radius of 0.5290000000000 m?
Sunday, October 28, 2012 at 2:30am

computer science
Write a method main that demonstrates class Employee's capabilities by creating two Employee objects. Initialize one of the objects (give values to the instance variables) using the constructor and display its instance variable values through the display method. Using the ...
Saturday, October 27, 2012 at 11:14pm

management science
Kim Davis has decided to purchase a cellular phone, but she is unsure about which rate plan to select. The "regular" plan charges a fixed fee of $55 per month for 1,000 minutes of airtime plus $0.33 per minute for any time over 1,000 minutes. The "executive"...
Saturday, October 27, 2012 at 8:15pm

Science
Fill in the blanks: 1. Minerals are classified in many ways, including hardness, streak, and _______ properties. 2. There are some minerals that are valued as _______ because of their hardness, color, and beauty. 3. Non-silicates make up less than 10% of Earth's _______; ...
Saturday, October 27, 2012 at 5:35pm

science
what is grossular used for
Saturday, October 27, 2012 at 2:34pm

Science Asap
As a substance is heated from its liquid phase to its gas phase, what happens to the spacing and speed of its molecules? Thank You for helping.
Saturday, October 27, 2012 at 2:08pm

science
i have a science test on monday,but i misplace my paper that i have to study on can you please give me some ideas what to study for photosynthesis
Friday, October 26, 2012 at 11:59pm

Science
What is the equation for the reaction of H2S with potassium iodate? All I know is sulphur is precipitated.
Friday, October 26, 2012 at 5:52am

science
a piece of metal weighs
Friday, October 26, 2012 at 12:33am

Science
The unit m/s is the _____.
Thursday, October 25, 2012 at 11:56pm

Science
To calculate _____ you divide the total distance traveled by the total time it takes to travel that distance.
Thursday, October 25, 2012 at 11:56pm

Science
A baseball travels 50 m in 10 s. What is the average speed of the baseball?
Thursday, October 25, 2012 at 11:55pm

science
How much volume would a 4x4x4 cm cube occupy
Thursday, October 25, 2012 at 11:48pm

Science
A mechanic pushes a 2.20 103-kg car from rest to a speed of v, doing 4,550 J of work in the process. During this time, the car moves 24.0 m. Neglecting friction between car and road, find each of the following.
Thursday, October 25, 2012 at 11:39pm

Science
How much work do you do when you push a 30kg pumpkin across 1.5 meters
Thursday, October 25, 2012 at 11:33pm

science
5 letter science word, with the 4th letter o
Thursday, October 25, 2012 at 10:34pm

science
Betty is sledding down a hill going 12 m/s. She hits a very steep patch and starts to speed up 1.5 m/s2. How fast will Betty be moving 2 seconds later?
Thursday, October 25, 2012 at 8:32pm

science
Please tell me 2 websites where i can find out if any robots or satellites landed on Venus.
Thursday, October 25, 2012 at 7:30pm

science
How hot can venus get. How cold can venus get.Please help
Thursday, October 25, 2012 at 7:17pm

science
velocity of 2.9 m/s speed increase of 7.6 m/s in 4s What is her acceleration ?
Thursday, October 25, 2012 at 6:55pm

science VERY URGENT
Once again please give me about 2 websites where i can find out interesting facts about Venus. 2 websites where i can find out if any robots or satellites landed on Venus.2 websites were I can find the average temperature of Venus. Lastly 2 websites where I can find out how ...
Thursday, October 25, 2012 at 6:46pm

science
velocity of 2.9 m/s speed increase of 7.6 m/s in 4s What is her acceleration ?
Thursday, October 25, 2012 at 6:46pm

science
Please give me about 2 websites where i can find out interesting facts about Venus. 2 websites where i can find out if any robots or satellites landed on Venus.2 websites were I can find the average temperature of Venus. Lastly 2 websites where I can find out how long it takes...
Thursday, October 25, 2012 at 5:25pm

science
how does area of an opened parachute affect the size of force
Thursday, October 25, 2012 at 4:31pm

Physics (Science)
Hi, For my physics class, we have to design our own experiments to calculate the amount of power exerted for each situation. However, I'm really unsure of how to go about finding the power for the situations. The first situation is doing a push-up, and the second is ...
Thursday, October 25, 2012 at 5:34am

science
I have made a thermometer which measures temperature by the compressing and expanding of gas in a piston. I have measured that at 100 degrees C the volume of the piston is 20 L. What is the temperature outside if the piston has a volume of 15 L? What would be appropriate ...
Thursday, October 25, 2012 at 12:14am

Comment
Excuse me, but I really need help on the science question if you could help me that would be nice!
Wednesday, October 24, 2012 at 10:53pm

Science
Fill in the blanks 1. Minerals are classified in many ways, including hardness, streak, and ______ properties. 2. There are some minerals that are valued as _______ because of their hardness, color, and beauty. 3. Non-silicates make up less than 10% of Earth's _______; the...
Wednesday, October 24, 2012 at 10:41pm

Science
Question: The greatest expansion of water occurs when: isn't it when it turns to ice?? The other answers are at 4C it gains temperature or at 4C it loses temperature. In the winter the pipes can break because the water in them freezes thats why I thought it was that. Thanks
Wednesday, October 24, 2012 at 9:59pm

science
what force must be applied to the end of a 2.0 meter long crowbar in order to lift a 500 Newton rock if the fulcrum of the bar is 0.5 meters from the rock?
Wednesday, October 24, 2012 at 9:39pm

Science
Name one feed and feeding system in pig rearing.
Wednesday, October 24, 2012 at 9:34pm

science DUE FIRST THING IN THE MORNING PLEASE HELP
where did the water on the outside of a glass come from
Wednesday, October 24, 2012 at 9:23pm

science
where does the water on the outside of a glass cup come from
Wednesday, October 24, 2012 at 9:20pm

science
What property of gases allow them to completely fill whatever space they are in?
Wednesday, October 24, 2012 at 9:15pm

science
How tall is the tree if the sun is at a 53° angle above the horizon and the shadow is 8.0 meters long?
Wednesday, October 24, 2012 at 9:14pm

Science
I need help with coming up a hypothesis for and Organic Compound lab! Anyone have an idea?
Wednesday, October 24, 2012 at 9:02pm

science(word definitions)
whats the difference between the words dominant and recessive
Wednesday, October 24, 2012 at 9:00pm

Physical Science
Sound travels about 1530 m/s in sea water. How many times faster does sound travel in sea water than in air? (The speed of sound in air at 25°C is about 345 m/s.)
Wednesday, October 24, 2012 at 8:20pm

science
what are some interactions that can take place when a beam of light hits a glass tank and then enters the water
Wednesday, October 24, 2012 at 6:08pm

science
How do you know a television change electricity into light energy? What other form energy is produced?
Wednesday, October 24, 2012 at 5:30pm

science
Where in nature could you find a source of the same energy as that provided by batteries? explain
Wednesday, October 24, 2012 at 4:35pm

science
A reaction took place between a magnesium and florine in a large empty container if attraction and repulsive between these atom are equal at a distance of 0.001*10^-10m, calculate the couloumbic force between two atoms.
Wednesday, October 24, 2012 at 1:55pm

science
How to count atoms ?
Wednesday, October 24, 2012 at 11:50am

Math
Ryan brought a red milk snake to show during science class. Then snake is 56 centimeters long. Find its length to the nearest whole inch.
Wednesday, October 24, 2012 at 3:29am

science
What is the velocity of a car traveling from the east coast to the west coast at an average speed of 50 kph?
Tuesday, October 23, 2012 at 10:21pm

7th grade science ms. sue please
have no idea what these answers are. Thanks! 1. Explain in detail one of the climate change cause-and effect relationships. 2. Explain why a new moon is not visible and the difference between the waxing and waning phases of the moon.
Tuesday, October 23, 2012 at 9:33pm

science
what is the density if the mass is 17g and the volume is 34cm3 ?
Tuesday, October 23, 2012 at 9:14pm

7th grade science bobpursley or Ms. sue please
Can you guys help me please? I have no idea what these answers are. Thanks! 1. Explain in detail one of the climate change cause-and effect relationships. 2. Explain why a new moon is not visible and the difference between the waxing and waning phases of the moon.
Tuesday, October 23, 2012 at 7:28pm

science
what is the definition of special properties
Tuesday, October 23, 2012 at 7:13pm

Science Fair
Hi, my question is are part 1,2, and 3 different ways you can do the project? There are three parts. Each part should take less than 1 hour. In Part 1, you will stare at a colored object for various amounts of time, then measure how long it takes for the afterimage to ...
Tuesday, October 23, 2012 at 6:21pm

physical science
How much heat is absorbed by a persons hand if 100 grams of liquid water at 100°C is poured on his hand? (Assume the final temperature of the water will be normal body temperature of 37°C)
Tuesday, October 23, 2012 at 5:41pm

Science
How many calories of heat are required to change 1 gram of ice at 0°C to liquid water at 0°C?
Tuesday, October 23, 2012 at 5:40pm

science
the ski lift chair at a ski report is 2560m long. on average, the ski lift rises 15.2 degree above the horizontal. how high is the top of the ski lift relative to the base?
Tuesday, October 23, 2012 at 1:34pm

Science
Choose an ecosystem to research with regard to abiotic factors and how organisms in that particular ecosystem depend on those abiotic factors. Write a paragraph that describes the ecosystem that you selected and how organisms compete for abiotic factors within that ecosystem. ...
Tuesday, October 23, 2012 at 1:32pm

Science - Chemistry!!!
A lead bullet with a mass of 8.50 g traveling at 4.80 x 102 m/s strikes a 2.00 kg block of wood and is embedded in it. Both the bullet and the block are initially at 25.0°C. Assume that no heat is lost to the surroundings and that all the kinetic energy of the bullet is ...
Tuesday, October 23, 2012 at 11:07am

Science
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
Tuesday, October 23, 2012 at 8:51am

Science
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
Tuesday, October 23, 2012 at 8:50am

Science
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
Tuesday, October 23, 2012 at 8:49am

Physical Science
If liquid pressure were the same at all depths, would there be a buoyant force on an object submerged in the liquid?
Tuesday, October 23, 2012 at 6:28am

physical science
how much heat is absorbed by contacting 10 grams of 100 degree C steam by a students hand.
Monday, October 22, 2012 at 10:17pm

physical science
how much heat is absorbed by pouring 10 grams of 100 degree C liquid water on a students hand. The water is cooled to body temperature 37 degree C
Monday, October 22, 2012 at 10:14pm

science
These are the 3 questions that will help me study for my test. i need help understanding each of these thankyou :) Distinguish between microevolution and macroevolution. Explain how forest organisms (producers and consumers) separated by a highway could evolve into different ...
Monday, October 22, 2012 at 9:28pm

Science 207
As we reach a possible peak in oil production, what alternatives are forming? Consider the role of OPEC, perhaps in reorganizing and monitoring oil production. What do you think is the most viable way to address after effects of this possible peak?
Monday, October 22, 2012 at 8:52pm

Physics
In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer space. From stationary positions they push against each other. Bonzo flies off with a velocity of +1.7 m/s, while Ender recoils with a velocity of −2.7 m/s. (b) Determine the ratio mBonzo/...
Monday, October 22, 2012 at 7:29pm

soicial studys help plz
1. Who was the French absolute monarch who called himself the "Sun King" to show that he was the center of the French nation? (1 point)Cardinal Richelieu Louis XIII Louis XIV Versailles 2. The Elizabethan Age was considered a golden age due to all of the following ...
Monday, October 22, 2012 at 5:27pm

science
Is a mineral a crystal?
Monday, October 22, 2012 at 4:15pm

science
A balloon with an initial volume of 2.8L at a temperature of 296K is warmed to 375K . What is its volume at the final temperature? (Assume constant pressure.)
Monday, October 22, 2012 at 3:33pm

Sci 207 wk 2 lab 2
Which species appear to benefit from increasing fragmentation? Which species are negatively impacted? Based on your knowledge of environmental science, what could explain these observations? Support your answer with specific results from your data and ideas from your readings
Monday, October 22, 2012 at 3:17pm

Science Help!
How much heat is needed to cause the following irreversible reaction? 200 g of liquid H2O at 50°C is heated to form 200 g of steam at 120°C
Monday, October 22, 2012 at 2:27pm

Science
How much heat must be removed from 500 grams of water at 0°C to form ice at 0°C?
Monday, October 22, 2012 at 2:22pm

science
you are sledding on a snow-covered hill at a speed of 6 m/s there is a drop that increases your speed to 12 m/s in 4 s. find your acceleration? i need help answer?
Monday, October 22, 2012 at 1:49pm

Physical Science
How much heat is absorbed by pouring 10 grams of 100°C liquid water on a student’s hand. The water is cooled to body temperature, 37°C. Assume that all of the heat is absorbed by the hand
Monday, October 22, 2012 at 12:49pm

PHYSICAL SCIENCE
How do the pressure variation with depth affect our ability to explore the ocean?
Monday, October 22, 2012 at 5:28am

science
at what age does brain stops developing
Monday, October 22, 2012 at 1:23am

Science
What are some websites that gives facts about Weed Killer? How do I start an investigation report about this subject? Please help ... anyone?
Sunday, October 21, 2012 at 10:03pm

science
mass is 64.0 and volume is 16.0 what is the density?
Sunday, October 21, 2012 at 9:16pm

SCIENCE
HOW DOES KINETIC ENERGY DEPEND ON MASS?
Sunday, October 21, 2012 at 8:02pm

Physical science
What is the gravitational potential energy of a 5kg object resting 3m above the ground?
Sunday, October 21, 2012 at 3:40pm

science
Three lead balls of mass m1 = 14 kg, m2 = 26 kg, and m3 = 8.7 kg are arranged as shown in the figure below. Find the total gravitational force exerted by balls 1 and 2 on ball 3. Be sure to give the magnitude and the direction of this force.
Sunday, October 21, 2012 at 5:32am

science
A positive charge of 3.50 µC is located in an electric field of intensity 3.00 N/C directed toward the south. Find the magnitude and the direction of the force on the test charge. (remember E = Fon q' / q', and 1 µC = 1.00 x 10-6 C) a. 8.6 x 105 toward the ...
Saturday, October 20, 2012 at 10:24pm

i need help ss
1. Because there was a reawakening of interest in art, literature, and science between 1300 and 1600, it is fitting to call this period the Renaissance, since it means _____. (1 point)learning knowledge "out with the old" rebirth 2. During the Middle Ages, why was ...
Saturday, October 20, 2012 at 9:46pm

soical studys
1. Because there was a reawakening of interest in art, literature, and science between 1300 and 1600, it is fitting to call this period the Renaissance, since it means _____. (1 point)learning knowledge "out with the old" rebirth 2. During the Middle Ages, why was ...
Saturday, October 20, 2012 at 9:45pm

Science (Human Anatomy)
THIS QUESTION IS WORTH 50 MARKS I NEED SOURCES AS WELL Relate their structure of a neuron to the anatomy of the cerebral cortex and spinal cord Be sure to discuss the locations of soma, axons, dendrites, and supportive cells in each area.
Saturday, October 20, 2012 at 6:09pm

Science (Human Anatomy)
THIS QUESTION IS WORTH 50 MARKS I NEED SOURCES AS WELL Give 2 different reasons why two muscles that act across the same side of the same joint are not necessarily redundant? Explain your reasons in detail and give at one real example that illustrates each reason.
Saturday, October 20, 2012 at 6:09pm

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