Homework Help: Science

Branches of Science

Recent Homework Questions About Science

science
what is it called when a moving object shows a(n) (blank) in speed with time
Thursday, September 13, 2012 at 4:43pm

science
what is the density of liquid in a baloon that weighs 20N on a spring scale if the baloon has a volume of 0.75L what is the liquid density g/ml
Thursday, September 13, 2012 at 4:31pm

science
If a driver starts out her drive from rest (0m/s) and is traveling at 19.6 m/s two seconds later before entering the water, what was her acceleration?
Thursday, September 13, 2012 at 12:52pm

earth science
The gently sloping shallow area that extends from the continental shore is the called the continental?
Thursday, September 13, 2012 at 11:20am

science
How does the location of each animal's position in relation to the producers contribute to their size? Be sure to look at the food chain and the amount of energy that is being transferred between the levels.
Thursday, September 13, 2012 at 11:05am

science ( biology)
What are the various method a farmer should do to increase his land fertility by spending less money ???
Thursday, September 13, 2012 at 7:55am

science
find the density of metal cylinder if the diameter is 3.02mm and the height is 0.00591km in cm3 the mass of the cylinder is 0.847hg
Thursday, September 13, 2012 at 12:50am

science
Please check these! Physical or Chemical properties? 1. solubility = physical 2. melting point = physical 3. reacts with water to form a gas = physical
Wednesday, September 12, 2012 at 10:54pm

physical science
cart rolling a a speed of 10m/s comes to a stop n 2 s. what is the car's acceleration?
Wednesday, September 12, 2012 at 9:58pm

science
Will you please check a few more? Physical change, chemical change or both kinds of change? 1. Sodium hydroxide dissolves in water (both) 2. Hydrochloric acid reacts with sodium hydroxide to produce a salt, water and heat (chemical) 3. A pellet of sodium is sliced in two (...
Wednesday, September 12, 2012 at 9:58pm

science
Will you please check? Physical or chemical properties 1. bitter taste = physical taste 2. can neutralize a base= physical property 3. boiling point = physical property 4. reacts with a base to form water= physical 5. reacts with acid to form hydrogen = chemical property 6. ...
Wednesday, September 12, 2012 at 9:51pm

science
Will you please check my answers? Substances or mixtures? 1. Carbon Dioxide = M 2.salt water =M 3. table salt = M Homogeneous or Heterogeneous Matter- 1. flat soda pop = Heterogeneous 2. aluminum foil = Homogeneous 3. black coffee = Homogeneous 4. beach sand = heterogeneous 5...
Wednesday, September 12, 2012 at 9:46pm

Physical Science
A fishtank with inside dimensions of 50 cm X 25 cm X 30 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms?
Wednesday, September 12, 2012 at 9:29pm

science
An asteroid in an elliptical orbit about the sun travels at 2.0 106 m/s at perihelion (the point of closest approach) at a distance of 3.8 108 km from the sun. How fast is it traveling at aphelion (the most distant point), which is 8.3 108 km from the sun?
Wednesday, September 12, 2012 at 9:22pm

computer science
Assume that BlogComment is a structured type with these fields, comment (a string, the actual comment), and two int fields: like, dislike which count the number of "likes" and "dislikes" of the comment by visitors. Assume that nComments is an int variable ...
Wednesday, September 12, 2012 at 7:02pm

science
What is different about a massive star's lifetime during the hydrogen fusing phase? Where is this star on the H-R diagram?
Wednesday, September 12, 2012 at 6:55pm

science
A force directed 47.5° below the positive x-axis has an x component of 5.09 lb. Find its y component.
Wednesday, September 12, 2012 at 5:46pm

science
summaries of what was learned in a scientific experiment.
Wednesday, September 12, 2012 at 5:00pm

Science
Which of the following brake fluids is a strong paint solvent? DOT 1 DOT 2 DOT 3 DOT 5
Wednesday, September 12, 2012 at 3:32pm

physical science
If a 2 kg block has a gravitional potential energy of 58.5 J, how high is it above the floor?
Wednesday, September 12, 2012 at 11:16am

Psychology
Need help double checking these tricky psychology questions. I put an asterix (*)next to my answers, Thanks! Which of the following fields is the best example of psychology as a basic science? A-Educational psychology B-industrial organizational psychology *C-social psychology...
Wednesday, September 12, 2012 at 10:05am

Science
A body moving with an initial velocity of 10m/s has a uniform acceleration of 2m/s.Find distance travelled in the 8th second of its motion?
Wednesday, September 12, 2012 at 9:58am

computer science
Compare how data is handled in the NTFS EFS+, Ext3fs, and NTFS. Which one do you consider to be the most reliable file system? Why?
Wednesday, September 12, 2012 at 7:57am

Science
What is the difference between the lithosphere and the asthenosphere? In which layer is each located?
Tuesday, September 11, 2012 at 10:31pm

IPC
A student is running through the halls of solon high school at a constant velocity of 4 m/s, so that he/she can be on time to science class. If the class is 25 meters away, will the student make it in 5 seconds?
Tuesday, September 11, 2012 at 9:38pm

Science
How many mL of 80% v/v ethanol do you need to make 200 mL of a 50% ethanol solution in water?
Tuesday, September 11, 2012 at 8:12pm

Science
536cm (bigger or smaller than) 53.6 dm
Tuesday, September 11, 2012 at 7:45pm

Science
How many centimeters are in a millimeter?
Tuesday, September 11, 2012 at 7:09pm

Science
Conversions; 2000 mg =_____g If you know can you explain??
Tuesday, September 11, 2012 at 6:49pm

science
what tool is used to measure force?
Tuesday, September 11, 2012 at 5:58pm

science
what tool is used to measure mass
Tuesday, September 11, 2012 at 5:49pm

science
what is a tool used to measure?
Tuesday, September 11, 2012 at 5:46pm

earth science
A swimmer completed the 1,500 meter freestyle in 625 seconds. What was his average speed?
Tuesday, September 11, 2012 at 5:45pm

science
jasie traveled 500m at a speed of 13 miles how long did it take her?
Tuesday, September 11, 2012 at 3:49pm

Science
A man with a mass of 100 kg slides down a vertical pole with an acceleration of 8 m/s2. What is the frictional force acting on the man?
Tuesday, September 11, 2012 at 2:40pm

PHYSICAL SCIENCE
An object has a length of 5.0 cm, a height of 3.0 cm and a width of 15.0 cm. It has a mass of 24 grams. What is its density
Tuesday, September 11, 2012 at 2:28pm

science
How many ml of a 2% solution will 20 ml of a 10% solution make?
Tuesday, September 11, 2012 at 12:23pm

grade 9 science
a student wants to estimate the population size and density of birch trees in a woodlot measuring 100 m by 100 m. On a diagram of the woodlot, she splits the area into a 10 by 10 grid and randomly selects 10 sample quadrants - (0,0), (1,4), (2,6), (3,9), (4,3), (5,5), (6,1), (...
Monday, September 10, 2012 at 11:51pm

Science
What is the name for the plant that no longer depends on the cotyledons for nourishments?
Monday, September 10, 2012 at 11:26pm

Science
How do bennenials differ from perennials?
Monday, September 10, 2012 at 10:55pm

science
what are the number of digits in a measurement that are known with a certain degree of reliability?
Monday, September 10, 2012 at 10:55pm

science
bromine and mercury are the only 2 liquids on the periodic table, could you predict this? why or why not?
Monday, September 10, 2012 at 10:43pm

Science
. You and your friend are walking along a beach in Maine on January 15, at 8:00 am. 2. You notice a thermometer on a nearby building that reads -1 degrees C. 3. You also notice that there is snow on the roof of the building and icicles hanging from the roof. 4. You further ...
Monday, September 10, 2012 at 9:57pm

Science
Ms. Sue this is Ava will you please check my science answers that i posted
Monday, September 10, 2012 at 9:48pm

science
Ms. Sue the answer to the previous question are # 5 problem #7 hypothesis # 8 experiment and #6 data
Monday, September 10, 2012 at 9:13pm

Science
What are good sites for HOW DOES AIR HAVE MASS?
Monday, September 10, 2012 at 9:12pm

Math
Ryan left the science museum and drove south. Gabriella left three hours later driving 42 km/h faster in an effort to catch up to him. After two hours Gabriella finally caught up. Find Ryan's average speed! My teacher says we have to show all of the work and set up an ...
Monday, September 10, 2012 at 9:08pm

science
In science wwhy is that when they say what is the meaning of friction?
Monday, September 10, 2012 at 8:12pm

science
Describe the direaction an object moves looking through the microscope compared to how it is moving on the slide?
Monday, September 10, 2012 at 8:02pm

science
Analyzing Elements of a Scientific Method Read the following statements and then answer each question below. 1. You and your friend are walking along a beach in Maine on January 15, at 8:00 am. 2. You notice a thermometer on a nearby building that reads -1 degrees C. 3. You ...
Monday, September 10, 2012 at 7:53pm

Science 8R - Safety in the Laboratory Help!!!!
What was it called when you use this tube and you gently and carefully warming up the liquid using the gas using this thing that look like a scissor but your holding the tube on top of the gas. I forgot what it was, please tell me.
Monday, September 10, 2012 at 7:18pm

English
I have to analyze John F. Kennedy's inaugural address. I need to find the thesis, preview statement (forecasting or signposting), because statement (why the audience might be interested in listening), transitions, a restatement of thesis, and a clincher. Here is the text ...
Monday, September 10, 2012 at 6:36pm

Science
What other colors are contained in chloroplasts besides green?
Monday, September 10, 2012 at 5:47pm

Science
Why are plants green in summer and not green in winter?
Monday, September 10, 2012 at 5:46pm

Science
make a statement relating hydrogen ion concentration to the acidity and basicity of solutions
Monday, September 10, 2012 at 5:46pm

Science
What is the substance inside the guard cells?
Monday, September 10, 2012 at 5:46pm

science
If a solution A has 10,000 times as many H+ ions as solution B, what is the difference in pH units between the two solutions?
Monday, September 10, 2012 at 5:45pm

Science
Where do chloroplasts like to reside?
Monday, September 10, 2012 at 5:45pm

Science
What two structures surround the stomata?
Monday, September 10, 2012 at 5:44pm

Science
What organelle holds chlorophyll?
Monday, September 10, 2012 at 5:43pm

Science
Where on the leaf is the stomata located?
Monday, September 10, 2012 at 5:43pm

Science
what two molecules are on the reactant side of the photosynthesis equation?
Monday, September 10, 2012 at 5:22pm

Science
Can someone explain in simple english what the equator is?
Monday, September 10, 2012 at 3:55pm

Science
What would be a good sentence to describe Prime Meridian to a fourth grader?
Monday, September 10, 2012 at 3:53pm

Science
5. You have made the following two solutions: X) hydrogen ion concentration = 1 x 10-5M Y) pH = 4 State which statements below are true and which are false: a. Solution X contains 1 x 10-9M hydroxide ions. b. Solution X contains more H+ ions than Solution Y. c. Solution Y ...
Monday, September 10, 2012 at 1:03pm

intergrated science
Keiko is riding a skateboard 2 m/s, west. How long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s2? 3 seconds 6 seconds 8 seconds 10 seconds
Monday, September 10, 2012 at 10:32am

science
how many seconds will it take for a saterllite to travel 450 km at rate of 120 m/s?
Monday, September 10, 2012 at 1:59am

science
Analysis of forelimb anatomy of humans, bats, and whales shows that humans and bats have fairly similar skeletal structures, while whales have diverged considerably in the shapes and proportions of their bones. However, analysis of several genes in these species suggests that ...
Sunday, September 9, 2012 at 11:57pm

science
Your neighbor has fertilized her lawn. Several weeks later, she is alarmed to see that the surface of her ornamental pond, which sits at the bottom of the sloping lawn, is covered with a green layer of algae. (a) Suggest a feasible explanation for the algal bloom in the pond...
Sunday, September 9, 2012 at 11:55pm

SCIENCE
Unit of measure for the international system of measurement-what unit is used for temperature, mass, volume, and length? please answer :) I NEED TO STUDY AND HAVE A QUIZ TOMORROW
Sunday, September 9, 2012 at 11:20pm

math/science
If a bee flies 6km/h how long will it take to reach a flower that is 1.2 km from the hive?
Sunday, September 9, 2012 at 8:10pm

science
Has anyone written up a Lab for the Sponge Capsule lab? I am trying to do a graph
Sunday, September 9, 2012 at 7:39pm

science
how do you do the worksheet JELLY SIDE DOWN?
Sunday, September 9, 2012 at 5:40pm

science
I need helping locating information about the environment of Costa Rica so that I can analyze data about the country.
Sunday, September 9, 2012 at 3:31pm

physical science
A 136-lb. student races up stairs with a vertical height of 4.8 m in 6.0 s to get to a class on the second floor. How much power in watts does the student expend in doing work against gravity?
Sunday, September 9, 2012 at 2:38pm

physical science
What is the kinetic energy of a 29 kg dog that is running at a speed of 8.8 m/s (about 20 mi/h)?
Sunday, September 9, 2012 at 2:37pm

physical science
How much work does gravity do on a 0.140-kg ball falling from a height of 14.0 m? (neglect air resistance)
Sunday, September 9, 2012 at 2:36pm

Physical science
A man pushes a lawn mower on a level lawn with a force of 192 N. If 50% of this force is directed downward, how much work is done by the man pushing the mower 7.3 m?
Sunday, September 9, 2012 at 2:35pm

Physical science
A 6.2 "kil" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.31 m. above the counter?
Sunday, September 9, 2012 at 2:34pm

science
If a strong west wind is blowing at 35 milers per hour, how fast is the wind moving: in kilometers per second? in meters per second?
Sunday, September 9, 2012 at 1:23pm

physics, science
if proton is fired from west is moved to north by magnetic field what is direction of magnetic field
Sunday, September 9, 2012 at 6:30am

science
(a) Investigators often remove blood from a crime scene in order to extract DNA for forensics. Although blood cells do contain nucleic acids, why would blood yield relatively less DNA than semen containing sperm cells? (b)What are some other uses for DNA extracted from a human...
Saturday, September 8, 2012 at 11:43pm

science
Explain why a single base deletion could be potentially more damaging to protein synthesis than a deletion of three consecutive bases confined to one triplet?
Saturday, September 8, 2012 at 11:42pm

science
(a) Explain why DNA replication is necessary for mitosis. How are drugs that inhibit DNA replication useful in the treatment of cancer? (b) Describe and explain some of the risks and unfortunate, yet common, side effects associated with this kind of chemotherapy?
Saturday, September 8, 2012 at 11:41pm

Science
How much work is done lifting a 100 N block of ice up to a shelf 3m off the ground? What if you use a ramp? How heavy is the block of ice in pounds?
Saturday, September 8, 2012 at 6:58pm

Science
A 0.05 kg arrow with the velocity of 180 m/s is used to shoot a 5 kg block of wood off the top of a log. What will be the velocity of the arrow and wood after contact?
Saturday, September 8, 2012 at 6:55pm

Science
A 1 kg poodle running right at 3 m/s has an elastic head on collision with a 9 kg basset hound walking left with a velocity of 1 m/s. After the collision the poodle bounces off to the left at 3 m/s. Whats the basset hounds velocity after the colllision?
Saturday, September 8, 2012 at 6:52pm

Science
A 1000 kg car moves at 60 m/s. What braking force is needed to halt the car (change its momentum) in 6 s?
Saturday, September 8, 2012 at 6:50pm

Computer Science: NQC
Write a complete NQC program that spins for 2 minutes a Lego motor connected to the RCX output port B.
Saturday, September 8, 2012 at 3:56pm

Science
Do you have any acrostic poems on living things?
Saturday, September 8, 2012 at 11:04am

science
calculate the ratio of wavelength o mth line of lyman series and balmer series of H-atom
Saturday, September 8, 2012 at 2:36am

Science conversions
How do I convert 2.3 J/proton to J/mol?
Friday, September 7, 2012 at 10:00pm

SCIENCE
When you drop a bowling ball & a tennis ball they hit the floor at the same time but when they hit the floor they have the same what? A. speed B. force C. momentum D. all of the above. I think it is D but I can't find anywhere what they have the same. Thanks
Friday, September 7, 2012 at 9:33pm

Physical Science
find the potential energy of a 3kg block that is on a roof top 10m above the floor.
Friday, September 7, 2012 at 9:03pm

earth science
What are 10 facts about hurricane Isaac?
Friday, September 7, 2012 at 7:02pm

Science
In a tidal barrage scheme, the area of sea-water behind the barrage is 30km^2, tidal depth is 10m and the density of sea water is 1030kgm^-3. a. What energy is possible available from this scheme in one cycle of ebb and flow???
Friday, September 7, 2012 at 11:42am

Science
To make a large-scale representation of a hydrogen atom in its ground state, you start with a super ball (D=3.78 cm) to represent the nucleus. How far away, R, in km will you have to put the representation electron?
Friday, September 7, 2012 at 11:29am

science
Lithium fluoride has a Ksp of 1.84 x 10-3. If 1.5 g are dissolved, what will be the percent ionization?
Friday, September 7, 2012 at 9:26am

Science, Chemistry
What is the volume of 75.65 grams of zinc
Thursday, September 6, 2012 at 9:20pm

7th Grade Science
Explain why increasing the temperature of a gas in a closed, rigid container causes the pressure in the container to increase.
Thursday, September 6, 2012 at 8:53pm

science
1. Plants and other organisms such as green algae can produce their own energy in a process called _______. 2. The process of changing radiant energy into chemical energy is called ______. I think that both answers are "photosynthesis". However, two same answers in a...
Thursday, September 6, 2012 at 8:53pm

General
This is a question to everybody: I was just wondering if anyone had any science related questions or things they wonder about that may require experiments. If you have any ideas please mention them. I need this for a science for a science fair project and have at most a 6 ...
Thursday, September 6, 2012 at 7:46pm

7th Grade Science
when the temperature is constant the volume of a gas will decrease as the pressure decreases. True or false
Thursday, September 6, 2012 at 3:16pm

Science
How may 1.5 Liter water capacity diving cylinders can I fill to 200 bar from a 50 liter water capacity storage cylinder filled to 200 bar,leaving 25 bar in the storage cylinder, using a booster pump?
Thursday, September 6, 2012 at 6:08am

Science
What is the purpose of a control group in an experiment? a. To serve as a standard of comparison or b. To be the group exposed to changes in the manipulated variable
Thursday, September 6, 2012 at 1:03am

Science
Which statement about scientific question is true? a. Scientific Questions should avoid bias or b. Scientific Questions should be as general as possible
Thursday, September 6, 2012 at 1:00am

Science
Sponge Bob notices that his pal Gary is suffering from slimotosis, which occurs when the shell develops a nasty slime and gives off a horrible odor. His friend Patrick tells him that rubbing seaweed on the shell is the perfect cure, while Sandy says that drinking Dr. Kelp will...
Wednesday, September 5, 2012 at 10:17pm

Science
What are three weather factors that meteorologists measure?
Wednesday, September 5, 2012 at 9:56pm

SCIENCE
Sponge Bob notices that his pal Gary is suffering from slimotosis, which occurs when the shell develops a nasty slime and gives off a horrible odor. His friend Patrick tells him that rubbing seaweed on the shell is the perfect cure, while Sandy says that drinking Dr. Kelp will...
Wednesday, September 5, 2012 at 5:34pm

Physical Science
Find the density in g/cm3 of a 800 cm3 piece of metal having a mass of 4 kg.
Wednesday, September 5, 2012 at 4:59pm

english
English III – Unit 1: The Uses and Varieties of English PROJECT: ETYMOLOGY Instructions Look up the following words. Give the etymology of each. State what kind of term, such as mathematical, scientific, political science, history, etc. Include the name of the dictionary ...
Wednesday, September 5, 2012 at 3:58pm

Help! Science....
Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of clothes b. Different ...
Wednesday, September 5, 2012 at 8:20am

Science
What absorbs more heat, aluminum foil or black paper?
Wednesday, September 5, 2012 at 7:28am

7th Grade Science
Write a short essay in which you create an analogy to describe particle motion. Compare the movements and positions of people dancing with the motions of water molecules in liquid water and in water vapor. I am NOT asking anybody to do this for me, all I am asking is can ...
Tuesday, September 4, 2012 at 10:03pm

7th Grade Science
what physical force can cause a change in the state of matter what is the difference between chemical and physical changes what occurs during Bose-Einstein condensation Please help me.
Tuesday, September 4, 2012 at 10:00pm

science... Help me urgent!!
Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of clothes b. Different ...
Tuesday, September 4, 2012 at 9:45pm

Science
Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of clothes b. Different ...
Tuesday, September 4, 2012 at 9:39pm

science
an experiment for a new asthma medication was set up into two groups. Group one was given the new drug, while group 2 was given a sugar pill. the sugar pill serves as _________. a) control B)constant c) Experimental variable D) dependent variable
Tuesday, September 4, 2012 at 9:08pm

science
the mass of a shot an Olympic shot putter throws should be measured in what
Tuesday, September 4, 2012 at 8:48pm

Science
If on earth you weigh 420 newtons, and the gravitational pull on the moon is 1/6 of what it is on earth. What would be your weight on the moon?? Please show work Thanks!! :)
Tuesday, September 4, 2012 at 8:46pm

Science
Could someone help me list 15 thing that are not matter? Thanks
Tuesday, September 4, 2012 at 8:32pm

science
Find the horizontal and vertical components of the velocity of a cannonball 4 seconds after being fired horizontally at 400 m/s from the edge of a tall cliff.
Tuesday, September 4, 2012 at 1:01pm

Science
Does the material of the rod affect the period of time taken by a pendulum? if so, how? like maybe, if the mass of the rod is heavier, it will take a shorter time, etc.
Tuesday, September 4, 2012 at 7:17am

science
A simple model for a person running a 100m race is to assume the sprinter runs with constant acceleration until reaching top speed, and then maintains that speed through the finish line. If a sprinter reaches their top speed of 11.2ms-1 in 2.15s, what will be their total time?
Tuesday, September 4, 2012 at 6:34am

science
How would you find the thickness of a peice of gold foil.
Tuesday, September 4, 2012 at 12:11am

Science
Container A and B both container the same kind of liquid. Container A has a volume of 5 mL and Container B has a volume of 8 mL. Which container, if either has the highest density? Explain your Answer.
Monday, September 3, 2012 at 3:16pm

Science
Ten pounds of liquid water is at a temperature of 180 degrees F at standard atmospheric conditions. Determine the energy required to convert this to water vapor (steam) at a temperature of 212 degrees F.
Monday, September 3, 2012 at 1:57pm

science
Suppose you are presenting a science project that compares the temperatures of several different substances. Would you present your findings using degrees Farenheit, Celcius, or Kelvin? Explain.
Monday, September 3, 2012 at 1:48pm

Science
My question is which of the following are NOT examples of data? Numbers Graphs Measurements Conclusions I know conclusions are not data. What about graphs? Is that data or a way to record data?
Monday, September 3, 2012 at 1:16pm

Science - BTUs Please help
Although I vaguely see DrBob222's concept, I still need some help in the set up. Thank you. A 10 lb. frozen boneless roast needs to be thawed and baked to a temperature of 200 degrees F. The storage freezer maintains a temperature of -10 degrees F. Pork changes from solid ...
Monday, September 3, 2012 at 12:33pm

world studies
1. How did European exploration held lead the way to the Scientific Revolution? --I was thinking that with the more discoveries they were making, they wanted explanations as to how things are that way 2. How was the Scientific Revolution related to the Enlightenment? --I said...
Monday, September 3, 2012 at 10:38am

science
An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 850 m, horizontal distance 20.0 km, and 24.5° south of west. The second aircraft is at altitude 1100 m, horizontal distance 18.0 km, and 16.0° south of west. What is the ...
Monday, September 3, 2012 at 6:07am

Biology (Science)
What is the biological definition of life?
Sunday, September 2, 2012 at 10:24pm

physical science
how many square feet are there in an area of 1.00 square meters( 1 ft.=0.305)? use the proper number of significant figures in the answer.
Sunday, September 2, 2012 at 6:07pm

Science
Explain how a parachutist's loss of momentum on landing is consistent with the principle of conservation of momentum?
Sunday, September 2, 2012 at 4:48pm

Science
A 10 lb. frozen boneless roast needs to be thawed and baked to a temperature of 200 degrees F. The storage freezer maintains a temperature of -10 degrees F. Pork changes from solid to a thawed state at 30 degrees F and has the following properties: Heat Capacity "c"...
Sunday, September 2, 2012 at 2:55pm

science
how the method you mentioned can prevent food spoilage
Sunday, September 2, 2012 at 9:01am

Physics
B)In physics (and in all science) standard units are used to ensure measurement uniformity. Which of the following fictitious units of measurement could not be considered a standard unit? 1) The grimph: a distance unit equal to exactly 4 meters. 2) The nicket: a time unit ...
Saturday, September 1, 2012 at 1:11pm

science
how to make an acrostic for biology?
Saturday, September 1, 2012 at 11:57am

science
1 gram water is converted into vapour at100 degree C find volume change
Saturday, September 1, 2012 at 1:36am

Science
I need to observe and identify variables and I'm in 6th grade!!! Help, this work is killing me....It's scenario 1-4 and I have Mr Jones plz help plz
Friday, August 31, 2012 at 8:42pm

Science
what is the atomic symbol for the element chronium
Friday, August 31, 2012 at 7:33pm

Science
The half-life of an element is important for determining the _______ of a rock. A. relative age B. absolute age C. mineral makeup D. decomposition rate Is it B?? Which one of the following is not left in the land as a result of continental glaciers? A. Eskers B. Loess C. ...
Friday, August 31, 2012 at 4:57pm

Science
A car starts from rest and moves with constant acceleration during the 5th second of its motion,it covers a distance of 36 meters. what is the acceleration
Friday, August 31, 2012 at 1:39pm

science
how are the stone henge and cubi series alike?
Friday, August 31, 2012 at 12:27pm

Science
I have no idea what to do, and the teacher wants the volumetric flow rate (in cm). A commonly used rule of thumb is that average velocity in a pipe should be about 1 m/s or less for "thin"(viscosity about water). If a pipe needs to deliver 6,000 m^3 of water a day, ...
Friday, August 31, 2012 at 8:40am

science
solve, tan 10 degrees + tan 70 degrees - tan 50 degrees = ....
Friday, August 31, 2012 at 12:45am

science
I need to make a acrostic poem on a mitochondria? & I'm in 9th grade
Friday, August 31, 2012 at 12:45am

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