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4th grade science
What kind of heat transfer cause Earth's najor wind pattern?
gr9science
how do u convert g/ml to Kg/m^3 ?
science
Name three freshwater resources and 3 ocean water resources and their descriptions
science
what are the four major fields of earth science? please help and thank you
science
how does adding copper to gold change the economic value of the gold and the properties of the gold?
science
If a cube of Jello is cut into two pieces, what property of the pieces did not change?
science
please list out 6 functions of the blood and please write the reference of it
science
what is the connection between native americans and federal government
Science
how is a caldera formed
Science
why does high silica magma tend to form volcanic domes with steep sides
Science
what is the silica content of magma that has low velocity
Science
what is the silica content of magma that has low velocity
science
Can someone please tell me when a chromosome is a chromosome and when it is called a chromatid. For ex/ after anaphase the chromatids are now each called a chromosome,etc
SCIENCE/MATH
Land growing continuous grain corn as a cash crop loses soil at a rate of 14.0 metric tonnes ha-1 yr-1. This is a fertile soil, which has an organic matter content of 3.8% and nitrogen content of 0.35% (both by mass). a)Calculate how long it will take to erode the entire Ah ho...
Grd.10 Science
So i did a science lab today, and i am supposed to come up with the skeleton equation for it The chemical reaction is decomposition (starting with one compound that will break off into 1 or more compounds after reaction) This is what i have so far : Cu (CO3) ---> CO2 + ____...
Marine Science
Clownfish Mating: Can you compare and contrast reproductive strategies employed by other animals?
To Gunjan
Your posts have been removed. In the future, please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even bette...
Science
where can i find a good site that will show me the change's of the earth's atmosphere?
science
Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters -12000J 2. pulling a television wei...
science
respected teachers, i need brief biography about 1. Charles Darwin 2. Galileo Galilee 3. Louis Pasteur and 4. Marie curie thanks your sincerely x-y-z
Science
the cause is xylem dries up and dies, what is the effect? this is for my chapter of plant transport system
science grade 10
how to you say FeSO4(aq) in words
science
what is a group of atoms having a net electrical charge
finding online article
I need help finding an article online. It has to be on biomedical engineering related or science related. And the article has to talk about 3D or 2D or 2.5D imaging methods. I found a 2D and 3D article. But I can't find one about a 2.5D imaging sensor or machine. please help
5TH GRADE SCIENCE
where in nature could you find a source of the same energy as that provided by batteries?explain
Science
What would happen if all the clocks in the world were to stop for seventy-two hours.
science
What does meiosis produce?
science
explain how the nucleus can control what happens in a lysosome?
physical science 8th grade
Copper has 2 known isotopes: ^63CU atomic mass= 62.9298 and ^65 CU atomic mass=64.9278. The average atomic mass of copper is 63.546 amu. Calculate the fraction(percent) of each of the 2 isotopes of copper
science
A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.2 m/s2. At the same instant, a car passes the truck going 12 m/s. Where and when does the truck catch up with the car?
science
How much work will be necessary for the band members to move the new 120 kilogram amplifier to the garage where they practice, if they were to slide the amplifier a distance of 35 meters on a frictionless surface at an acceleration of 2 meters/second? Show all calculations, in...
science
For each of the activities listed below: 1. Describe one way in which work is done (Reminder: For work to be done, the force and the distance must be in the same direction.). 2. List two simple machines used in each task. 1. making a meal oven, microwave 2. traveling to school...
science
Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2. pulling a television weig...
Earth Science
Earth is always changing. What are two forces that cause the earth's surface to constantly change and what are their effects on the planet? Please answer within a few minutes.
science
For a machine with an efficiency of 80%, what is the work output of the machine if its work input is 2,000 joules? would i divide 2000/.80? which gives me 2500? Also, If a machine requires an effort force of 750 newtons applied over a distance of 2 meters, over what resistance...
science
For a machine with an efficiency of 80%, what is the work output of the machine if its work input is 2,000 joules? would i divide 2000/.80? which gives me 2500?
science
Select the choices in which work is done by recording "yes" or "no": 1. Reese completing her chemistry homework. NO? 2. the movers carrying Catalina's amplifier from the moving truck to her house. NO? 3. Li pushing his motorcycle down his driveway. YES?...
science
what is the speed needed to launch a space crop in outer space?
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?
Science (7th Grade)
My science teacher is really mean. And if I don't have the following questions done, I have a suspention! Please help!! 1) What discovery demonstrated that atoms are not the smallest particles? 2) Dalton did what to his theory that Democritus did not? 3) It is important fo...
science
What is an axis?
Science
Thanks Bob Pursley!!
science
a snowball rolls off the edge of a horizontal roof at a velocity of 7 m/s. what is the speed of the snowball 3 s later?
science
The gravitational force of the Earth in relation to the gravitational force of everything else on Earth represents a(n) _____ that causes everything to all toward the center of the earth. Is the answer unbalanced force; balanced force; centrifugal force; or centripetal force?
Computer Science-Java
Hi, I am writing an application class for a Lunar Calendar I created in a service class and I have to make sure it is able to detect that the year entered is not in the range of values(I have done this in the service class using a switch statement) and be able to detect if the...
science
How does the concentration of salts in a soil affect potatoes? I need to know a liitle a bit about this to be able to create a hypothesis for my lab report. Thanks
science 275
Where can I find information on how to mitigate a plan for ethanol effect on Atmospheric issues? Just tell me how to do it not do it for me Thank you
Life Science
By living in areas where other organisms inhabit,humans change the environmental conditions for those organisms. Describe two ways humans impact the environment and what the effects are on the earth? Thesse can either be positive or negative. Please answer in a few minutes.
Introduction Enngineering
For what reason did the French Academy of Science create the metric system
Computer Science
Given that main memory is composed of three page frames for public use and that a program requests pages in the following order. dcbadcedcbae a.) using the FIFO range removal algorithm, do a page trace analysis indicating page faults with asterisks (*). then compute the failu...
science
how does weight affect the amount of kinetic energy a moving object has?
Science,Ecology
What do iterlocking food chains make up?
chemistry, science
Carbon is also removed from the atmosphere during the process of weathering. carbon dioxide combines with water to form carbonic acid. this reacts with calcium silicate (in rocks) to produce calcium ions, bicarbonate ions and silicon dioxide (silica) the chemical equation for ...
general science
If a graph shows time on the horizontal axis and speed on the vertical axis, a stright horizontal line across the graph would indicate?
11th grade Physical Science
How fast must a 1,000 kg car be moving to have a kinetic energy of: (a) 2.0 x 10^3, (b) 2.0 x 10^5, (c) 1.0 kW x h? How high would you have to lift a 1,000 kg car to give it a potential energy of: (a) 2.0 x 10^3, (b) 2.0 x 10^5, (c) 1.0 kW x h?
science
true or false the force of friction acts in the SAME direction as the direction of the sliding object
science
Indacate whether each item below is an example of primary or secondary succesion. Give your reasons for each choice. a) Lichen grows on barren rock in the tudra.
science
when you look you cannot see me if you see me you cannot see anything else i can make you walk when you can't sometimes i tell the truth and sometimes i lie
Science
A biologist is studying the epithelial cells in a variety of plants and animals. She counts the chromosomes in the epithelial cells of several organisms and finds the following numbers: Organism A: 32 chromosomes Organism B: 26 chromosomes Organism C: 24 chromosomes Organism D...
6th grade(science
how is ignous rock formed
Natural science
short myths associated with Eclipse
science
i couldnt figure this one out. Materials, such as water, that become gaseous easily at room temperature are called volatiles. How does the complete lack of volatiles in lunar rocks support the impact theory of moon's formation? please help and thank you
science
how does the size of the moon's core support the impact theory of the moon's formation? please help and thank you
space science
how does the size of the moon's core support the impact theory of the moon's formation? please help and thank you
science
bounce gruond based microwaves off of rain and snow.used to track the direction and speed of storms?
science
why is high pressure so important in plant oil extraction
science
a change in size, shape or form is what kind of change?
Science
Respected teachers, I have got assignment that i have to write about 7 scientists i am in class 6 and we have to write 1 page for 1 scientist we have to write about their life style and what they invented and how they were great and i know names of some scientists .... Albert ...
Physical sciences
How do u calculate the oxidation numbr of an unspecified atom?
Science
Why is it cooler at the earth survice on cloudy days?
Environmental Science
Take the greatest care with your significant digits. If you don¡¦t, this question is not ¡§do-able¡¨. Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru has a ...
Environmental Science
In a measurement of precipitation (rainfall), a raingauge with an orifice (collector) area of 30.50 in2 collects 1.30 litres of water over a period of 26 minutes and 45 seconds. Calculate: a. The depth (amount) of rain that fell (in mm). b. The intensity (mm h-1) at which the ...
science
how far will a stone travel if its thrown off a 78.4 meter cliff at 5 meters per second
science/physics
A fisherman yanks a fish out of the water with an acceleration of 4.5m/s2 using very light fishing line that has a ''test'' value of 100N. The fisherman unfortunately loses the fish as the line snaps. What can you say about the mass of the fish? (please help)
science
the _____ equator is at the 0 degrees latitude. the _______ equator is an imaginary line marking the tempeture equilibrium between the hemispheres
science
what do you call a 3D triangular shape that bends light when it passes through
science
what is the word for the straight light travels in?
8th grade
Please Help Me. I'm doing a Science Fair Project, and I need help with finding simmilar experiments to mine. My experiment is: Which saliva is cleaner: Cat, Dog, or Human???
marine science
how does the earth redistribute the uneven amount of solar energy recieved by earths surface
science
how much force is needed to move a 10000kg airplane at 12.0 m/s
last one! science!
A typical high school lab activity involves building a model rocket with a small canister, antacid, and water. The water and antacid are combined in the canister, which is then tightly closed and turned upside down. The reaction of these materials in the canister causes gas to...
science
John loads a collapsed inflatable boat into a two wheel "grocery type" handcart and wheels it down to the lake. While the cart is being wheeled it is tipped at about a 45-degree angle (in other words, about halfway between horizontal and vertical). John finds this ti...
science
Arrange the amount of momentum of these objects from the most momentum to the least momentum. When placing the objects in the correct order, record the value of their momentum. 1. A 0.4 kg baseball thrown by a major league pitcher at 120 m/s. 48kg*m/s 2. A 0.04 kg bullet trave...
science
How would i set these up? like what is the equations? # A tennis player hits a tennis ball with a force of 330 N, and it accelerates at the rate of 5,500 m/s2. What is the mass of the tennis ball? # Li is pedaling his bike with a force of 220 N. The combined mass of Reese and ...
science
# a quarterback throwing the football unbalanced # a pickup truck cruising at a constant velocity balanced # two teams in a tug of war at a standstill balanced # a math book sitting on top of a table balanced # Reese and Li moving Catalina's amplifier a short distance bala...
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
Political Science-PLEASE HELP
What are the American Government system's strengths and weaknesses?
MATH/SCIENCE
Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru(Ich) has a catchment area of 1250 km2. The Aeron(Iae) has a catchment area of 2.400 * 106 ha. The outflow stream, the Afon Rhondda (Orh) has a...
physical science
What is the force between two balloons with negative charge of 2.3 x 10^-12 C if the balloons are 46 cm apart?
Environmental science
Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru(Ich) has a catchment area of 1250 km2. The Aeron(Iae) has a catchment area of 2.400 * 106 ha. The outflow stream, the Afon Rhondda (Orh) has a...
science
At its highest point, the pendulum is 1.2m above the ground and as a gravitational potential energy of 62J. If the gravitational potential energy is 10J at its lowest point, what is the pendulum's kinectic energy at this point?
social science
What are some issues that might cause the president to call a joint session of Congress?
Science
When the insect travels to another flower, it transfers pollen to ________, helping the plant to reproduce.
Political Science-PLEASE HELP
What are the system's greatest strengths and weaknessess? Please help fast.
SCIENCE
IN ORDER TO MAKE EXPERIMENTS MORE ACCURATE WE TAKE MEASURMENTS'COMPLETE THE TABLE BELOW USING YOU'R KNOWLEGE OF SCIENTIFIC INTSTREMENTS ' MESERMENTS AND UNIT'S
ENVIRONMENTAL SCIENCE ( math/science)
Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru(Ich) has a catchment area of 1250 km2. The Aeron(Iae) has a catchment area of 2.400 * 106 ha. The outflow stream, the Afon Rhondda (Orh) has a...
science
Mitosis: Number of chromosomes in cells production Meiosis: Number of chromosomes in cells production.
Environmental Science
If you were an environmental researcher and were given funding to assist with one environmental issue, which of the following topics would you choose to spend your funds on? • Energy Conservation What influenced your choice? What would the ultimate goal of your research be?
science
hurricanes in the northern hemisphere always travel north while hurricanes in the southern hemisphere always travel south. This is due to the earths _______ and is called the ________ ________. can you help me fill in the blanks
physical science
What is the change in thermal energy of water in a pond with a mass of 1,000kg and a specific heat of 4,184j(kgdegreesc) if the water cools by 1 degree c
Science
Does anyone know the scientific names for palm leaves or rose leaves? Thanks.
pre-algebra
mr conner's students made kites in science class. he brought a 500-yd bolt of twine to tie to the kites. if he wants to give each student a piece of twine 331/3 yards long. what is the maximum number of pieces of twine mr. conner will be able to make from the bolt of twine?
science 8th
give an example of a chemical formula.
Science
A ball is thrown from a cliff at a horizontal speed of 3m/second and at the same time a second ball is dropped straight down from the cliff. How fast will the dropped ball be going after 2 seconds?
Science
In a measurement of precipitation (rainfall), a raingauge with an orifice (collector) area of 30.50 in2 collects 1.30 litres of water over a period of 26 minutes and 45 seconds.[10] Calculate: 1) The depth (amount) of rain that fell (in mm). 2) The intensity (mm h-1) at which ...
social science
why does the constitution specify different ways to determain the number of members for the House and for the Senate?
science
what type of cell is mitosis? what type of cell is meiosis?
science
How are elements represented on a periodic chart?
Childhood Education
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A Math and science B Social studies and science C Cooking and math D Social studies and cooking . I belive the C is the correct answer
Science
How many stars form the bowl of the Big Dipper and What part of a carrot plant could be considered a wedge?
science 7thgrade
in an organism containig many cells how is th work of the cell performed
Science 8th grade
What is the mass of a piece of aluminum that has a volume 100.0^3?
Computer Science - Java
Hi, For an assignment I am doing, we have to have 2 service classes and one application class. One service class is already written (i.e. DiceGame1) and I am writing another one (i.e. Player) that is supposed to use the previous service class an instance variable. I was just w...
science
how does mass differ from weight what is law of universal gravitation
Childhood Education
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A Math and science B Social studies and science C Cooking and math D Social studies and cooking
science
What are the physical features of niagra falls.
Science
What is a gel, and what is a sol (as in aerosol, hydrosol,etc.)?
English
I want to improve the flow of this sentence. I would greatly appreciate any insight, minor or major. Here is the sentence, which is intended as a thesis: L. Ron Hubbard, in founding Scientology, has created a dangerous contemporary cult that suppresses free speech, mistreats a...
Science
Who studies the biosphere?
Science
How many electron are in each electron shell in an atom of argon?
Science
FeS + HCl yields FeCl2 + H2S Balanced Equation & Type of Reaction
science
what are the chemical properties of scandium
science
what is gravitational potential energy and what is kinetic energy?
Physical Science
An object travels 6m in the first second of travel, 6m again durning the second second of travel, and 6m again druning the third second. It acceleration in meters per second per second(M/S2) is
psydag-science
thankyou for the websites you found the last one was perfect it helped alot thankyou again :)
SAT essay
Most of us tend to accept the opinions of the authority because we believe that those who are in the position of authority are more likely to know the truth and make wise decisions. However, the people in authority can sometimes make mistakes. If we stick to their ideas withou...
science
a 49 newton rock is lifted in 5 seconds A. how much work is done? B.what power is used? How do you write this question out
science
please could someone hep me. for my assignment i need to write a newspaper article about cane toads in australia. i need to include what they eat ,where they originate,how big they are and other info. thankyou!:)
environmental science
1. Checkpoint: Population Size • View the Ch. 7 Alien Invasion VLR located under the Week Four Materials section of your student Web page. • Post a 200- to 300-word response to the following: o Explain the four factors that produce changes in population size. o Which...
science
a womans lifts a 300 newton child a distance of 1.5 meters and carries her forward for 6.5meters. how much work does the woman do in lifting the child? b.how much work does the child do?
science
a teacher pushed a 98 newton desk acrosss a floor for a distance of 5 meters she exerted a horizontal force of 20 newton How much work was done?
science
a 49 newton rockis lifted 2meters in 5 seconds How much work is done? b what power is used?
science
a mr wikinson backpack weighs 45 pounds if there are 453.7grams in one pound what is the mass of his backpack?
science
mrs rossow ran the Yakima river cayons marathon the course is 27.2 miles long and it took her 2 hours and 15 minutes to finish if she weighs 135pounds calculate the work and power she used. A.work B.power
science
Mr beck gigantic gas guzzling exhaust spewing urban assault vehicle suburban weighs 10000ponds it takes mr becck 2 minutes to drive 1.5 kilometers to west valley fitness so he can ride the stationary exercise bike for a half hour How much work and power did the suburban do? A....
science
a box pushed across the floor for a dis tance of 5 meters with a force of 50 newtons in 5 second how much work is done? what is the power?
science
mr mcmurry taked 4327 sips of mountain dew each day. each time he takes a drink he moves the bottle 45cm to his mouth and another 45cm to his mouth and another 45cm back to the table .If the bottle has a massof 567 grams (5.1newtons)how much work does Mr Mcmurry do during the ...
earth science
Why are some crystals large and perfect, while others are small and irregular? The only answer in my book that seems close is : The crystal shape, hardness, cleavage and density of a mineral are determined by the internal arrangement of its atoms or ions. I don't see anyth...
science
Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD
science
Mrs leuenberger ran the same marathon but since her husband was hunting and she couldn"t find a babysitter she had to carrY her two daughter in her arms they weighs 40pounds and 55 pounds mrs leuenberger weights 145pound (butyou didnt hear that from me) How much work and ...
science
Mr.wilinson carried his backpack 12kilometers and set up camp on the edge of cutthroat lake it took him 3 hours to get there from the trailhead how much work did he do on his backpack on the hike in?(1pound=453.7grams=4.1newtons)EXPAIN
science
Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD
Science
Mass= 48g; volume=24 cm3 . What is the density of this substance ?
science report card
What does '% of Spread' mean?
Political Science-PLEASE HELP
Consider the following scenario: You are a criminal defense attorney, and your client has just been found guilty by a U.S. district court in Illinois. in 200-300 wors What are your options for appeal? Describe the appeals process all the way to the U.S. Supreme Court. What is ...
science
some facts about the marine biome
MATH/SCIENCE HELP
1. In a measurement of precipitation (rainfall), a raingauge with an orifice (collector) area of 30.50 in2 collects 1.30 litres of water over a period of 26 minutes and 45 seconds.[10] Calculate: a. The depth (amount) of rain that fell (in mm). b. The intensity (mm h-1) at whi...
environmental science
Sorry I forgot to add the rest of my question to my post I wanted to know what is a good way to teach myself mitigation strategies and solutions about energy conservation?
enviromental science
what is a good way to educate myself on mitigation strategies and solutions?
science
is chlorophyll needed for cellular respiratin
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