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July 28, 2014

Homework Help: Science

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Recent Science Questions

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Science!
2. Which waves have the longest wavelength and lowest energy on the electromagnetic spectrum? (1 point) X-rays infrared radio waves gamma rays*** 3. What is true about X-rays and microwaves? (1 point) X-rays have greater speed than microwaves. X-rays have greater amplitude ...
Friday, December 6, 2013 at 2:37pm

Science- Ms. Sue
The image below shows an example of a _______ fossil. connexus. com/content/media/917517-4162013-74053-P​M-1148399744.jpg Is it a body fossil?
Friday, December 6, 2013 at 12:58pm

Science- Ms. Sue
What evidence was found from soft tissue samples of a remarkable well-preserved Tyrannosaurus Rex that provided molecular evidence linking T.Rex to a chicken? A. Antibodies that react in a specific way with chicken proteins reacted in the same way with T. Rex proteins. B. ...
Friday, December 6, 2013 at 12:04pm

science
which of the following is a consequence of using fossil fuels as an energy source
Friday, December 6, 2013 at 10:37am

Science ASAP
A geologist is studying a layer of soil in the Sahara. The soil layer contains little humus but a lot of clay and other rock particles. Which soil layer is it? A) A horizon B) B horizon C) C horizon D) bedrock
Friday, December 6, 2013 at 9:35am

Science ASAP
How does the C horizon form? A) color and chemistry B) texture and pure space C) decayed organic matter D) oil
Friday, December 6, 2013 at 9:33am

science help please?????????????
A student wishes to test the accuracy of the measuring jug she is using in an experiment. The label on the jug claims that it measures volume to an accuracy of plus or minus 5 cm3. The density of water is about 0.999 g cm−3, which means that 100 cm3 of water should have ...
Friday, December 6, 2013 at 7:25am

Science
what is the definition of nutrient?
Friday, December 6, 2013 at 3:17am

Quick Science Check?
A biologist is constructing a cladogram to show the evolutionary relationships between the animals shown below. If anatomical features are used to construct the cladogram, which animal will be placed farthest from the shown animal? Animal shown: connexus. com/content/media/...
Friday, December 6, 2013 at 12:04am

AP Chem - Science
For a cell of the CsCl type (figure 9.18), how is the length of one side of the cell,s, related to the sum of the radii of the ions, r subscript cation + r subscript anion? Figure 9.18 : i . imgur . com / zHj2SGW.png Another question : Consider the NaCl unit shell in figure 9....
Thursday, December 5, 2013 at 9:52pm

science
when light travels from air into glass at an angle of incidence greater than o degrees, how is it bent in relations to the normal?
Thursday, December 5, 2013 at 8:00pm

history,geography,life science,maths or maths lit
can i be a social worker while am those subject
Thursday, December 5, 2013 at 3:01pm

science
which of the following explains why your body may contain a carbon atom that was present in George Washington's body in 1776
Thursday, December 5, 2013 at 1:46pm

Science
A biologist is constructing a cladogram to show the evolutionary relationships between the animals shown below. If anatomical features are used to construct the cladogram, which animal will be placed farthest from the shown animal? Animal shown: connexus. com/content/media/...
Thursday, December 5, 2013 at 12:50pm

Science need help
A group of students are setting up the first experiments, looking at the growth of roots in water containing an added factor. They have decided to grow seeds in both in pure tap-water and in water with a defined amount of vinegar added. As part of their group discussions they ...
Thursday, December 5, 2013 at 12:35pm

Science need help
A group of students are setting up the first experiments, looking at the growth of roots in water containing an added factor. They have decided to grow seeds in both in pure tap-water and in water with a defined amount of vinegar added. As part of their group discussions they ...
Thursday, December 5, 2013 at 8:39am

Science
A biologist is constructing a cladogram to show the evolutionary relationships between the animals shown below. If anatomical features are used to construct the cladogram, which animal will be placed farthest from the shown animal? Animal shown: connexus. com/content/media/...
Thursday, December 5, 2013 at 1:32am

PHYSICS
Identify/name at least 1 biological science problem and prepare on how procedure on how to solve such problem then recommend solutions.
Wednesday, December 4, 2013 at 7:21pm

PHYSICS
Why era traits/scientific characteristic important in the field of Science?
Wednesday, December 4, 2013 at 7:17pm

PHYSICS
Why is there a need foe a scientist to know the limitations of Science?
Wednesday, December 4, 2013 at 7:15pm

Science ms. Sue please help!
How would you prepare 100.0 mL of 0.07500 M AgNO3 solution starting with pure solute? 2. An experiment calls for you to use 250 mL of 1.0 M HNO3 solution. All you have to available is a bottle of 6.0 M HNO3. How would you prepare the desired solution?
Wednesday, December 4, 2013 at 4:10pm

Science
Where does beach matierial come from
Wednesday, December 4, 2013 at 4:03pm

Science
When it was first classified by biologists, the elephant shrew was placed with the bicolored shrew in a cladogram. Since then, additional evidence has been found that caused scientists to remove the elephant shrew from the shrew group and place it in a new position in a ...
Wednesday, December 4, 2013 at 2:44pm

Science help (just 4 questions)
1. Which of the following is an example of an environmental pressure? (1 point) the air pressure in the atmosphere a lake that is gradually running out of water a fight between two members of the same species breeding between two members of the same species 2. Which of the ...
Wednesday, December 4, 2013 at 1:22pm

science
in an island ecosystem a beetle feeds on a shrubby plants -- a songbird preys on the beetle and the hawk preys on the songbird. which has the smallest population?
Wednesday, December 4, 2013 at 1:16pm

science(please check answers)
Identify the choice that best completes the statement or answers the question. 1.Studies conducted in England during the Industrial Revolution have shown that children born to poor families were, on average, shorter than those born to wealthier parents. The most likely ...
Wednesday, December 4, 2013 at 11:57am

Science
When it was first classified by biologists, the elephant shrew was placed with the bicolored shrew in a cladogram. Since then, additional evidence has been found that caused scientists to remove the elephant shrew from the shrew group and place it in a new position in a ...
Wednesday, December 4, 2013 at 11:02am

Physical Science
(c) ____Cl2(g) + ____KBr(aq)h____Br2(l ) + ____KCl (aq) (d) ____CH4(g) + ____O2(g)h____CO2(g) + ____H2O(l )
Wednesday, December 4, 2013 at 11:01am

Science Question?
When it was first classified by biologists, the elephant shrew was placed with the bicolored shrew in a cladogram. Since then, additional evidence has been found that caused scientists to remove the elephant shrew from the shrew group and place it in a new position in a ...
Wednesday, December 4, 2013 at 12:33am

Computer Science
Given an undirected graph G = (V,E), does there exist a set D ⊆ V of size k such that every v ∈ V is either in D or adjacent to at least one member of D. Show that DS∈NPC. You may only assume that VC is known to be NP-Complete.
Wednesday, December 4, 2013 at 12:21am

Science
Name the three ways in which heat is transferred, and describe how heat is transferred in each situation.
Tuesday, December 3, 2013 at 8:51pm

Science(IPC)
1.00 L of a gas at standard temperature and pressure is compressed to 473 ML. what is the new pressure of the gas?
Tuesday, December 3, 2013 at 8:24pm

Science
How far does a wave travel in three cycles?
Tuesday, December 3, 2013 at 7:32pm

Science
The distance from the crest of a wave to the next crest is 10 centimeters. The distance from a crest of this wave to a trough is 4 centimeters. a. What is the amplitude of this wave? b. What is the wavelength of this wave?
Tuesday, December 3, 2013 at 7:25pm

Science
Which mineral property is the best way to tell the difference between each type of mineral?
Tuesday, December 3, 2013 at 5:49pm

Science
Which mineral property test is the best way to tell the difference between each type of mineral? Why? Mineral Properties are: -Luster -Color -Magnetism -Hardness -Streak -Cleavage There are other mineral properties like Odor and Taste.
Tuesday, December 3, 2013 at 4:52pm

science (ipc)
Describe the motion of an unanchored rowboat when a water wave passes. Does the wave move the boat forward?
Tuesday, December 3, 2013 at 3:40pm

SCIENCE
which of the following would most likely lead to increased biodiversity
Tuesday, December 3, 2013 at 2:37pm

Science
When would you want to have a corrosive reaction? I can find when you wouldn't want to have one but not when you wouldn't. Please help!! Thank you
Tuesday, December 3, 2013 at 2:00pm

science
How do thermometers work? I have already looked on Google and I cant find anything! Please help me!
Tuesday, December 3, 2013 at 11:08am

science help?
select the word from the following list to complete this paragraph ,you may use award once,more than once or not at all. (water,clay,sand,increases,decreases,air​,permeable,textures) Soil of different..........appear to have differing capacity to retain ........As the ...
Tuesday, December 3, 2013 at 8:54am

Geography nd physical
Can i tyk geography nd physical science if i wnt 2 become a pathologist
Tuesday, December 3, 2013 at 7:10am

science
If an automobile engine delivers 40.2 hp of power, how much time will it take for the engine to do 5.90 ✕ 105 J of work? (Hint: Note that one horsepower, 1 hp, is equal to 746 watts.)
Tuesday, December 3, 2013 at 5:42am

Science help please!
1. The relationship between temperature and volume is known as what law? 2. What is the relationship between temperature and pressure? (directly proportional or inversely proportional) 3. The relationship between volume and pressure is known as what law? My answers: 1. Charles...
Monday, December 2, 2013 at 9:59pm

science
identify three devices that convert electrical energy into light, and give an advantage and disadvantage of each one.
Monday, December 2, 2013 at 8:29pm

science
identify three devices that convert electrical energy into light, and give an advantage and disadvantage of each one.
Monday, December 2, 2013 at 8:28pm

science
Which statement explains why light from sun can warm up water in a glass? a)light travels very fast. b)light travels in straight lines. c)water reflects light energy. d)water absorbs light energy.
Monday, December 2, 2013 at 6:09pm

Science
Match these with the key terms (1) A form of energy that is always transferred from a warmer substance to a cooler one. (2) device that converts hear to a small amount of electric energy often used in temperature sensors. (3) A Push button barbecue lighter produces a small ...
Monday, December 2, 2013 at 4:13pm

Science
A biologist is constructing a cladogram to show the evolutionary relationships between the animals shown below. If anatomical features are used to construct the cladogram, which animal will be placed farthest from the shown animal? The animal shown is an antelope. A. The first...
Monday, December 2, 2013 at 1:42pm

Physical Science
How can we talk about the evolution of stars over billions of years when human beings have been observing stars for only a few thousand years?
Monday, December 2, 2013 at 12:44pm

Physica Science
Describe the movement of the Earth based upon the perceived change in positions of the stars
Monday, December 2, 2013 at 12:40pm

Physical Science
What are the noninvasive benefits of the medical technologies that rely on physics of elementary particles?
Monday, December 2, 2013 at 12:36pm

Physical Science
What are three medical technologies that rely on the physics of elementary particles?
Monday, December 2, 2013 at 12:32pm

Physical Science
What is the question that many have about the Department of Energy and Yucca Mountain
Monday, December 2, 2013 at 12:29pm

science
Arrange the available phrases in the correct sequence in the development of unstable atherosclerosis by dragging and dropping the phrases into the boxes. 1. ↓ 2. ↓ 3. ↓ 4. ↓ 5. Plasmin causes the thrombus to detach from the endothelium Cholesterol is ...
Monday, December 2, 2013 at 9:14am

Physical Science
Is it true that electric cars do not generate pollution because they have batteries?
Monday, December 2, 2013 at 12:37am

Physical Science
Where do electric cars obtain their energy?
Monday, December 2, 2013 at 12:36am

Physical Science
Explain how the temperature difference between the poles and the equator drives the motion of the oceans and atmosphere.
Monday, December 2, 2013 at 12:36am

Physical Science
Why do we call groundwater in most areas a "nonrenewable resource"?
Monday, December 2, 2013 at 12:32am

Science/ Biochemistry
You buy a quarter pounder with Cheese Extra Value Meal from McDonalds ( assume you drink water. Answer the following questions. Assumptions 1. All proteins involved in the sandwich are tripeptides 2. 1 molecule of fat makes 5 molecules of Acetyl CoA 3. 1 molecule of ...
Sunday, December 1, 2013 at 11:26pm

science
For BOD5 test 1) Why water samples needed dilution? 2)How to check the test accuracy? 3)Under what conditions, the water sample needs "seed"? anyone can help?please.
Sunday, December 1, 2013 at 11:25pm

science
How to eliminate chloride interference up to the COD test?
Sunday, December 1, 2013 at 11:16pm

Science
For a BOD5 Test: 1) why water samples needed dilution 2) How to check the test accuracy 3) Under what conditions, the water sample needs"seed"? anyone can help, please.
Sunday, December 1, 2013 at 11:14pm

Physical Science
How do ocean currents affect local climate?
Sunday, December 1, 2013 at 7:57pm

Physical Science
What are the differences between ice caps and glaciers?
Sunday, December 1, 2013 at 7:56pm

Physical Science
What kind of rock is below the soil in Waynoka, Oklahoma?
Sunday, December 1, 2013 at 5:24pm

Physical Science
Describe how energy flows through the ecosystem near oklahoma
Sunday, December 1, 2013 at 5:22pm

Physical Science
If I live in Oklahoma, what kind of ecosystem is near me?
Sunday, December 1, 2013 at 5:20pm

science question
What is the relationship between the size of the shadow and the distance of the object from the light source?
Sunday, December 1, 2013 at 4:58pm

science
what is called when plants use enrgy from the sun?
Sunday, December 1, 2013 at 1:17pm

science
Compare and contrast spiral and elliptical galaxies.(Make at least 2 comparisons.)
Sunday, December 1, 2013 at 12:24pm

science proyect
Which type of ball will bounce highest when dropped from a height of 48 inches, a 8 inches ball(small) or a 12 inches ball(big)?
Sunday, December 1, 2013 at 11:40am

science
According to the big bang theory, by which force did the universe form ? a) gravity b) energy from a solar flare c) inertia d) nuclear fusion
Sunday, December 1, 2013 at 10:10am

Science
Three light beams encounter a medium. One light ray is reflected, while the other two are absorbed. How can the medium be described? Transparent Translucent Opaque or Clear In satellite communication, does the satellite... Receive radio signals Prevent radio signals Send radio...
Saturday, November 30, 2013 at 2:46am

Social Science
Discuss how the recent PATRIOT Act may advance various forms of collective behavior among groups within the United States. 2. Discuss the reasons for resistance to social change. 3. Describe the political, social, and ideological reasons behind the Defense of Marriage Act.
Friday, November 29, 2013 at 9:46pm

science
Which of the following most likely caused the rapid change of the mountain? a.landslide b.snowfall. c.wind erosion. d.volcanic eruption. My answer is (b)
Friday, November 29, 2013 at 8:53am

science
A soil sample contains living and non living materials. Which material was once living? a.sand particles. b.small pebbles. c.decomposing leaves. d.water droplets.
Thursday, November 28, 2013 at 3:44pm

science
Trisha poured some water over a pile of sand. Some of the sand washed away. This process is similar to which of the following? a.the eruption of volcano. b.the erosion of the walls of a canyon. c.the uplifting of mountain ranges. c.the forming of dunes or mounds in the desert.
Thursday, November 28, 2013 at 8:24am

Physical Science
Which of the following is a balanced equation? a. A1 + CuSO4= Cu + A12 (SO4)3 b. 2 A1 + CuSO4 = Cu + A12 (SO4)3 c. A1 + 3 CuSO4 = 2 Cu + A12 (SO4)3 d. 2 A1 + 3 CuSO4 = 3 Cu + A12 (SO4)3
Wednesday, November 27, 2013 at 4:51pm

Physical Science
Do metalloids have a complete outermost shell?
Wednesday, November 27, 2013 at 12:45pm

Physical Science
How many compounds are in potassium sulfide (K2S)?
Wednesday, November 27, 2013 at 12:42pm

science
how do I make a presentation?
Wednesday, November 27, 2013 at 11:26am

science
what outer planet is known for having visible clouds in its atmosphere ? a)Uranus b)Neptune c)Saturn d)Jupiter
Wednesday, November 27, 2013 at 9:35am

science
what physical components do the sun and earth have in common ? a) core and mantle b) core and atmosphere c) crust and atmosphere d) mantle and crust
Wednesday, November 27, 2013 at 9:28am

science
caco3 + kno3 =0.301g resalt soild 0.197g co2:o2 ?
Wednesday, November 27, 2013 at 4:22am

science
When molecules of water vapor in the air come into contact with a cold can of soft drink, they lose energy, slow down, and form a liquid due to a increase in _ ? I dont really know this one PLEASE HELP? <3 thanks
Wednesday, November 27, 2013 at 3:39am

Science
An object weighing 90 N has a volume of 45 mL and a mass of 9.0 g. What is its density? A. 0.10 g/mL B. 0.20 g/mL C. 5.0 g/mL d. 10 g/mL Please and Thank YOU
Tuesday, November 26, 2013 at 11:19pm

Polticial Science
Control of the bureaucracy through legislative oversight is a matter of
Tuesday, November 26, 2013 at 7:39pm

science
An objects _________ does not change no matter where in the university
Tuesday, November 26, 2013 at 6:42pm

Physical Science
An example of an oxide ore of iron is? magnetite. bauxite. chalcocite pyrite.
Tuesday, November 26, 2013 at 4:03pm

Physical Science
Groups of atoms that behave as though they were single atoms are called __________.
Tuesday, November 26, 2013 at 4:01pm

science
which of the following is an important outcome of biodiversity that humans use? A) computers B) medicines** C) fashion D) housing
Tuesday, November 26, 2013 at 10:36am

science
Neutrons have a rest mass of 1.6749*10-27 kg (equivalent to 939.6 MeV). If a certain neutron has a total energy of 949 MeV, what are its relativistic mass energy in MeV, its speed in m/s, its kinetic energy in MeV, and its momentum in kg.m.s-1?
Tuesday, November 26, 2013 at 10:30am

science
A small mass m swings in a horizontal circle of radius r at the end of a string of length Li and negligible mass, which makes an angle i with the vertical. The string is slowly shortened (for example by pulling it through a hole in its support) until the final length is ...
Tuesday, November 26, 2013 at 7:12am

Physical Science
Why is it important when calculating the distance to extremely distant stars using parallax, astronomers use incredibly accurate instruments?
Tuesday, November 26, 2013 at 1:59am

Physical Science
Why do astronomers when using the method to calculate the distance to stars, they measure the parallax angels exactly 6 months apart?
Tuesday, November 26, 2013 at 1:58am

Physical Science
Describe how transform plate boundaries differ from plate boundaries.
Monday, November 25, 2013 at 11:38pm

Physical Science
How do we know that tectonic plates move?
Monday, November 25, 2013 at 11:37pm

Science HP
When using the method to calculate the distance to stars, astronomers measure the parallax angels exactly 6 months apart. Why? Can you please help? Thank you.
Monday, November 25, 2013 at 9:56pm

Science
When calculating the distance to extremely distant stars using parallax, astronomers use incredibly accurate instruments. Why is this important? Please help Thank you
Monday, November 25, 2013 at 8:36pm

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