Unanswered | Answered


The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.
A: actually any active components will oscillate with positive feedbackA transistor can be used as an amplifier along with an LC tank circuit to form an oscillator; it is an active device (as LIBURNO states) which will amplify the feedback signal coming out of the LC tank circuit. The tank circuit...
Divide the number of days total by the number attended.  365/180=2.0278, Round that down to 2, they go to school 1/2 of the  year.    Check: 180*2=360 days
a board and art supplies
Should be herbivores since carnivores are higher in the food chain.
Kangchenjunga* at it's peak Is the 3rd highest elevation point on  our planet, Earth.   Total elevation: 8,586 m (28,169 ft)   Prominence: 3,922 m (12,867 ft)    Credit for information goes to Wikipedia. Please check there for  Source material.
Sodium chloride (NaCl) is a unique substance, a compound formed by a chemical bond. A mixture involve the existence of min. two different substances.
a place to find/get food from
Median is finding the center of a line of some values. The values have to list in ascending order. When there are an odd amount of numbers: the median is the middle number. Example: find the Median of {12, 3, 5}. Put them in order: {3, 5, 12}. The middle number is 5, so the median is 5. When...
The red line goes down and the blue line just goes all the way up.  Cool right?
Kalahari Desert & Richtersveld
The Prime Meridian- Straight line, runs through Greenwhich,  England, is 0 degrees longitude, splits the world into Eastern and  Western Hemispheres.   The International Date Line- Much less of a Straight Line, runs  through middle of the Pacific Ocean (Kind of), is where the day  "switches"...
    Not sure when this was posted but current models for 2007 are: Carla Ossa (swim & fashion), Jessiqa Pace (swim), Rachel Reynolds (swim), Karen Carreno (swim & fashion), Bree Condon (swim & fashion) and Angela Marcello (fashion)
River Tees, river in northeastern England, rising on  Cross Fell in the northern Pennines and flowing 70 miles (110 km)  east to the North Sea. It forms the boundary between the historic  counties of Yorkshire and Durham. In its upper course the Tees  flows in a typical Pennines dale (valley)...
1 pint ≈ 56.8 cl
degree is the unit of either temperature or angle. But feet is the  unit of length. So no relation between these two
The factors 10 and 6 are a factor pair of 60.
It turns to water and sometimes methane gas is released.
In desert plants the root hairs are more sensitive for water  absorption and can absorb water at times from the moist air present  in the porous soil. The root hairs of tropical rain forest plants  absorb only capillary water present in the soil.
sequellae     As long as the electricity is static, it is of little concern.  Of course, static today, current tomorrow.     I heard of a man who picked up two cables to connect them  and was cooked. The person in charge said it was static  electricity, since the power was then not...
Geothermal power can be used in our homes as air-conditioners and  heaters. It is renewable as the Earth is constantly making heat.
What do you mean by that? The reflex itself doesn't do anything in  particular.
According to the  United States Geological Survey, more than 3 million earthquakes  happen each year. That's one earthquake every 11 seconds!  Obviously, many of these earthquakes have little or no effect on  human civilization - most are too weak to notice, and many others  occur in completely...
It depends which form it is in
You can calculate as follows:   * Convert the 4 inches to feet.   * Multiply the area by the thickness. The result, so far, will be  in cubic feet.   * Multiply this by the density of the base. If you have the density  in pounds per cubic foot, the answer will be in pounds.   * Convert...
Radium is a decay product of uranium and is constantly being  produced. U-238 has a half-life of about 4.5 billion years, so  there's still quite a bit left of the original amount on Earth.
980 square feet. Just multiply length by width - the answer is the square footage.
This means that playing is a crucial stage in the brain development  of any young animal.   It is a chance to act out the situations that they will have to  face in real life, but in a safe, controlled way.
Many problems accompany the project from the proposal to the  finish. The early disputes stressed on the economic and technical  factors. It was generally accepted that these two factors could not  support the construction of the project and the problem of  migration was hard to be settled....
ya it may be possible that by the using role scoper results in soil  erosion
The molecules of water are held together by hydrogen bonding between molecules.These are electrostatic bonds (attraction forces between opposite charges) that hydrogen makes with the oxygen of neighbouring molecules. Hydrogen, when bonded to oxygen to form water molecules, is slightly positive and...
methanol, 726, CH3OH(l) + 3/2O2(g) → CO2(g) + 2H2O(l), ΔH=-726  ... Assume all the heat produced from burning ethanol has gone into  heating the water,
It is: 3.25% of 58=1.885
Water is a 'Universal Solvent'. It can react easily with a more or  less anything because of it's two hydrogen atoms' free electrons.
Pack into its front pouch pocket for storage.
In the U. S., "billion" means a thousand millions, so the answer is one-tenth.In Britian, "billion" means a million millions, so the answer is one-ten-thousandth.
Small agranulocytes that have a dense nucleus and very little cytoplasm are called Lymphocytes.
Storage location of DNA, and are used to pass on genetic traits.
Hot Ice, Sodium Acetate, is made from vinegar and baking soda.
It started in Colombia 25 million years ago. it was active about 25  million years - 18 million years ago.
They are different chemicals and one is a very strong acid and the  other is a very strong base, respectively.
The specific gravity for water is 1.  However, when the temperature of water increases, the gravity  gradually lowers. At 0°C (32°F), gravity is 1. At 100°C (212°F),  the specific gravity of water is 0.958. At 300°C (approx. 580°F),  it is 0.7. 
 Inez Fung is a professor of Atmospheric Science at UC Berkeley  and the Co-Director of Berkeley Institute of the Environment  Dr Brenda Ekwurzel works on the national climate program at the  Union of Concerned Scientists (UCS).  Marine ecologist and climate expert Corina Brussaard is part of ...
The purpose of cytoplasm is to keep all organelles in place.
Descriptive and inferential
This is due to different soil compositions.
by doing experiment the researches can be applied to find out the  new thing or law of nature.
It depends, an atom that has more charges of one kind than another  is called an ion. Obviously this is caused by the number of protons  and electrons compared to each other. If it has more positive  charges, it has more protons than electrons, making it a positive  ion. If it is a negative...
Superregnum: Eukaryota Regnum: Plantae Divisio: Magnoliophyta Classis: Magnoliopsida Ordo: Asterales Familia: Asteraceae Subfamilia: Asteroideae Tribus: Madieae Genus: Eriophyllum Species: Eriophyllum latilobumwooley sunflorer  ====  Superregnum: Eukaryota Regnum: Plantae Divisio...
It gives support and shape to the body.
5g sodium chloride and 95 the concentration
Cell walls help a plant keep its shape. They also protect the cells  and allow plants to grow in height.
Protons and neutrons are called hadrons. A hadron contains three  quarks. Quarks come in 6 flavors (types). These types are up, down,  top, bottom, strange, and charmed. (The names are completely  arbitrary.) A proton contains two up quarks and one down quark  while a neutron contains one up...
Potential space between visceral and parietal pleurae
If you're asking about whether or not there would be a reaction,  then probably not. You have two compounds with the same anion, so  you will just have a big aqueous solution of chloride ions, plus  some hydrogen and ammonium ions.
based on the body parts
 1. Financial Income - There is money in recycling.  In the level of the individual, one of the benefits of recycling is  financial income. There are a lot of things lying around the house  that we no longer want or need that might just end up in a dumpsite  somewhere, that we can recycle and...
well from what I looked up it says ''  Tolerance to oxycodone builds up quickly. This means that users,  whether real patients or drug abusers, soon need more of the drug  to have the outcome they are used to having. For a patient with  real pain, the doctor can increase the prescription as...
The bubbles you see are most likely Hydrogen gas.
In referring to blood, the four major components that make up whole  blood are RBC's, WBC's, Plasma and Platelets. Fractions are  included in each of the 4 components. Examples include: Immune  Globulins, Albumin, Clotting Factors etc.
Fluid ounces measure volume so there is no equivalence.
yup the slavery can be resisted by men and women because the are  the two contents of a society which can be protest n bring change n  resist slavery....
The Grey Owl is the largest Owl in the World.
On the 1st, 29th and 30th of November 1860.
Earth is described as having three atmospheres. The first  atmosphere, captured from the solar nebula, was composed of light  (atmophile) elements from the solar nebula, mostly hydrogen and  helium. A combination of the solar wind and Earth's heat would have  driven off this atmosphere. The...
they increase in size as we get older, so we can never tell.
Namely through methods of conduction, and radiation. Conduction  means that although air particles are far, they are still close  enough to bump into one another and transfer some of that energy  kinda like a newton's cradle. Radiation means that electromagnetic  emissions of particles act like...
The common denominator of any two or more whole numbers will always be one (1) because common denominators refers to the denominators of two or more fractions or mixed numbers, not whole numbers. So, a set of whole numbers (x,x) would have to be converted to their fraction equivalents, i.e., x/1,...
The sandy region of the western Sahara in Mauritanian is called the  empty "quarter".
absolute magnitude is how bright the star actually is and  luminosity is how bright it looks.