Physics
Physics regards the physical aspects of the natural world. It includes topics that deal with forces on different bodies within the universe and phenomena that explain how the universe works.
Total questions 328100
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asked What can you color and said it was different from What color will reflect all colors 5 minutes ago
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asked What is an example of a material whose atoms strongly hold on to electrons and said it was different from What has a strong hold on electrons 6 minutes ago
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wrote the first answer to The push or pull that gives energy to an object is called 21 minutes ago
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wrote the first answer to What force causes you to slide and stop 52 minutes ago
If you're talking about electronic communication, both analog and digital communication use a "carrier" frequency to send data....
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The sutton panaromic camera was a camera made in 1859.
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a= (vf-vi)/tFirst convert 58 km/h to m/s by dividing by 3600 and multiplying by 1000.Now convert 60 km/h to m/s by dividing by...
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Quantum physics is a discipline that has experimented with light to determine if it is a particle or a wave, and the answer turns...
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Energy comes in two basic types:kinetic energy (moving energy) and potential energy (stored energy). Each of these can be...
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Ultrasound is sound above the range of human hearing, Sonic(20 to 20,000Hz) Human Hearing...
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Answeryotta- (Y-) 1024 1 septillionzetta- (Z-) 1021 1 sextillionexa- (E-) 1018 1 quintillionpeta- (P-) 1015 1 quadrilliontera-...
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See the Related Links for "LA Times - Love in the Brain" to the bottom for the answer. See the Related Links for "Love...
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AnswerThere are four laws of thermodynamics, zeroth to third:Zeroth law. If two thermodynamic systems are each in thermal...
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One pound = 453.6 ml of pure water.
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Coulomb's Law states that the magnitude of the electrostatic force between two point electric charges is directly proportional to...
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The motion of an object along a curved path.
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a compass has a magnetic point which points to the north pole. well yes but....a compass has a magnetic needle inside it which...
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If the transformer has two separate windings, then, YES a step-down can be used as a step-up, and vice-versa. It is more correct...
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Yes. In theory, they should both hit the ground at the same time, except that it is not happening in a vacuum. The falling bullet...
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For the same reason that people can jump up and down and planes can fly: power. Gravity is not of infinite strength. If it were,...
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Acceleration is a change in velocity per unit of time. Velocity is distance (d) per unit of time (t). That makes acceleration...
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AnswerIron, nickel and cobaltNickel no no.
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Dirt
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As water freezes,what happens to the water molecules that causes ice to float?why is the unquie?My answer is that the ice has...
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Be it chemistry or physics by a professor, psychiatrist, scientist, etc., there is no definition of love. It's been an age old...
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Its greattest density is 1000 g/L at 4 °C. When frozen, its density is 916.7 g/L. So its volumal fraction is 1.091.
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The plasma in a fluorescent light or plasma ball, is contained by glass. Fusion plasmas are too hot to contain in any...
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Density is mass per unit volume, so if you know an object's mass and the space it occupies, then you can calculate its...
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Found the answer myself. The eye will retain an image for about one tenth of a second, When the light moves fast enough the eye...
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I think you are referring to the magnets you attach to gas lines in a car. They don't work.
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F = G((m1*m2)/(r^2)) where G=6.67×10^(−11) Nm2/kg2 (a constant) and m1 = the mass of the first mass and m2 = the mass of...
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Stellar events, including supernovas.
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It has to do with weight. A train weighing 12 million pounds at 1 mph will move more weight than a motorcycle at 200 mph. It has...
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The support force on an object is called the normal force because it is a force "normal" to the object. "Normal" in this sense...
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Simple algebra is all that is required.
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If you happen to be in a gravitational field, you could use a balance, or a device that works on the same principle. If you...
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f-f transition: the transition of an electron from an f orbital which is lower in energy to an f orbital which is higher in...
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Total Internal Reflection is an optical phenomenon which occurs when a ray of light strikes a medium boundary at an angle larger...
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A shadow is caused by an object blocking light so that it doesn't reach a surface. The area in shadow appears black because there...
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The person created the graduated cylinder is Albert Einstine
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Nuclear fusion is happening right this moment on the sun. It is happening all the time. It happens every day, all day long. It is...
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Absolute zero has not been achieved, temperature is simply proportional to the speed of the molecules, and absolute zero is the...
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Because kinetic friction is proportional to the weight of the object moving, not the speed of the object. While it definitely...
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Simply put, the higher the altitude, the lower the density of the air molecules.
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1s2 2s2 2p2↑↓ ↑↓↑ p ↑ 2 1 S
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3.78 L1 liter = 2.11 pints 1 pint = 0.47 liter
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Any flat surface that is not coplanar with the horizontal plane.
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In Bulk Motion, the actual object is moving along in a wave formation. In Wave Motion, only the wave is moving, not the material...
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Anything with heat emits infrared radiation. If any matter is above absolute zero, it emits infrared radiation.
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A continuity tester is sometimes referred to as a "bell set". To make one, procure a battery, an electric bell or buzzer, and...
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Acoustic energy is sound energy produced by vibrating objects. The definition of sound says that it is a disturbance of energy...
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Perpetual motion machines do not exist. If they did we would not be paying almost $3.00/gallon for gasoline, as a perpetual...
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SOx and NOx dissolve in the water to create sulfurous and sulfuric acid, and nitrous acid . Normal rain has CO2 dissolved in it...
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A diode is used to control current flow in a circuit A diode has a very high resistance to current flow in one direction and a...
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Superconductivity is the flow of electric current without resistance in certain metals, alloys, and ceramics at temperatures near...
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A magnet which comes naturally from the earth; a lodestone is a natural magnet.
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The answer is: No. Density is a property of a substance, and doesn't depend on the size of the sample. Samples of different...
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A centimeter is 1/100 of a meter. 3.6 m would be equal to 3.6 * 100 or 360 cm... so 3.6 M is greater. A centimeter is 1/100 of...
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It is the additional amount of heat [measured in (the "big") calories ] required to cause boiling/vaporization of a liquid...
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The hand blocks the light
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AnswerSound waves travel through space only if the is some medium in that space. Space on Earth is filled with stuff (like air,...
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Yes, modern incandescent bulbs are filled with an inert gas (argon,) but with a bit of nitrogen. Nitrogen is used because argon...
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Sythetic elements are those with half lifes to small to be found in nature, they are manmade and generally fairly unstable.
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Answerthe E=mc2 is a formula is for the purpose on space travel by the use of electricity and magnetism.. Einstein did this in...
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A 2nd class lever has the load between the fulcrum and the effort force, like a wheel barrow and 3 wring whole puncher.stapler...
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AnswerThe lowest head loss is from a venturi since it has the lowest coefficient of discharge. typical coefficients range from...
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It doesn't. However, most geyser-makers prefer diet soda over regular because the sugar substitute is not sticky (sugar, of...
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going faster than the speed of sound. It is a pressure wave of air that builds up in front of a plane, preventing it from going...
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Gpe=mgh =50*9.81*(5cos30) =2.124kJ
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Quite,simply electricity affect fruit flies by electricitying them.Any insect that enters a bug zapper is instantaneously...
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water to ice molten lava to stone
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Time before noon. Before the use of standard time, (Greenwich Mean Time, time zones, etc.) most communities used solar time....
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There have been a few cases where explosions have occurred during fueling of vehicles and cell phone use, specifically the...
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u SLOW datz y u dont kno it stupid
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The doplar effect is like when you are standing on the sidewalk and you hear a car coming, see it pass and then hear it leaving....
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because water is dencer than air
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The weight of water displaced by the floating block of wood is exactly equal to the weight of the ENTIRE block of wood,...
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Kinetic energy is the energy of motion, and is defined as mass times velocity. Evidence of kinetic energy include Examples of:...
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The difference is quite large. The helium nucleus (using He4 for fun) contains two protons and two neutrons. The two electrons...
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Imagine a gravity well. The farther you move away from the center, the "flatter" space becomes. The "gravitational potential"...
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If something has a lower density than the substance it is in it will float.
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the answer would seem to be obviously yes. the production of a sky scraper would be no different than that of building a house. i...
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A scrap heap magnet is an electromagnet. This is when you create a magnetic feild by running electric current through a wire.
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magnitude of velocity
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potential energy is energy in its position waited to be used kinetic energy is energy in use. no i diasagreee
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The atomic number of tellurium is 52.
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John S. Townsend and H.A. Wilson
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The electron is the most important subatomic particle with a negative charge. There are others, however. Electron. Muon. Quarks:...
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The link below should help
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While it would be nice if we had cable that had no resistance at all, the only materials that have no resistance are...
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They are gravitational forces!! and they are hard working forces
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There are few things that are perfectly black. You can see many things, with detail, that are colored black. Obviously whatever...
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In Level 3 levers the force is applied between the fulcrum and the load, as in tweezers. Arm, Baseball bat, Broom, Doors,...
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By the laws of thermodynamics, every body will over time emit or draw heat until its temperature are the same as of the...
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I think it has something to do with the water molocules mixing with your hair cells. Also, you know how the sky reflects on the...
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AxisIn terms of astronomy, it is the imaginary line running through a planet around which it rotates. See the Related Link for a...
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