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.
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The total effective resistance of resistors in series is the sum of the individual resistances. Three 60-ohm resistors in...
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Well its easiest to think of this in context. If Al was to travel at 1 meter per second for one second, he would have traveled 1...
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The scientific notation of this number can be 1.25x10-2 or 12.5x10-3.
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-- major third -- minor third -- perfect fifth
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The question is slippery, as it doesn't specify what it means by 'greater'. Infrared waves have frequencies much higher than...
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Commonly known as cations.
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The electrons themselves do not move at the speed of light. Electrons in a DC circuit move because of the application of an...
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Electromagnetic waves comes in different frequencies; at higher frequencies, the wavelength is shorter. So, X-rays have a shorter...
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17975103574736528 Joules according to Einstein's formula of mass-energy equivalence
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When Ice melts the water molecules gain more energy, inhibiting their ability to maintain their shape. So they fall apart and...
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The earth acts as a sort of magnet. The gravity is like a + and we are - but neither of us have any charge, unlike magnets. The...
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This is a frequent source of confusion. A mass, which can be informally defined as the "amount of matter", can be measured...
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Your teacher has a sense of humor, or you misread the question.... And the answer is... on his feet. Since the force of gravity...
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The main problem with nuclear fission is the high level nuclear waste formed in the fuel. This is extremely dangerous and has to...
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Just look up the densities of the two substances. A substance with less density will float; one with more density will sink.
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In our periodic table, we got different elements each with different numbers of electrons or protons and neutron. Electrons...
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The answer is "Temperature".
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specific heat content is calculated by the joules of energy required to change the temperature of one cubic centimeter of the...
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Helium is the lighter gas but hydrogen is very flammable
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hot water evaporates faster because it is hot ------------WRONG---LOLZ------------To get from a liquid to a gas, which is called...
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An interesting question. The safety aspects have been fully verified and tested. The chances of creating a black hole are a...
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Do you mean, "rate of change of velocity"? That's called "acceleration".
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In this solar system, it is on the sun.
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Gravitation.
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That's a trick question. Spin is a characteristic of some elementary particles. It is like asking, what provides the energy for...
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Newton is a force. If you multiply Newtons times meters, you get an energy. The unit is also known by the name Joule, or...
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It is the angle at which a beam of light strikes an object.
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World wide the figure is about 16 percent
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Depends on the other conditions. If the volume remains constant, the density will remain the same (but the pressure will...
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Myofibrils or muscle cells have proteins that help cell expand and contract to certain extent. Certain metals also undergo...
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Yes, in fact it is impossible to elilimate all thermal energy in a substance. and tht is has it one site that talks about this
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PE = mgh, that is, mass x gravitation x height. Or simply weight times height, since weight is already equal to mass times...
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These disturbances are known as "waves". Examples include compression waves in air or other media (i.e., sound), and...
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No, it is larger - diameter is about 4 times as big.
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An object will float if it has less density than water. In the case of the battleship, you have to consider the total mass - the...
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That is called the Spring Constant. It describes the amount of deformation of the spring, either stretch or compression, in units...
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water expands when it freezes, unlike most substances, so the ice is less dense. it is the same amount of mass as it started...
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Most substances will expand when they are heated. A few substances will contract; one example is water between zero and 4 degrees...
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Solids molecules start vibrating more thus causing it to get bigger. the heat gives the molecules energy to vibrate more
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C = ( F - 32 ) x 5/9 Where F is degrees Fahrenheit and C degrees Celsius Accordingly, zero degrees Fahrenheit = - 32 x...
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In a vacuum it doesn't
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Helium is found beneath the ground like natural gas. It is mostly from: the Great Plains of the United States the Canadian...
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In order of increasing wavelength: Violet, indigo, blue, green, yellow, orange and red.
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An electric field. A magnetic field
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Forces that likely act upon a moving object include: friction gravity
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Radio waves are the lowest frequency waves. Next are microwaves, then infra-red waves.
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F=mam=F/am=20/4.0m=5Kg
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It's the source of life and understanding for who we are today, so that we will be able to make sense of who we are within the...
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Just divide the useful work done (the 90J) by the input work. If you want the result in percent, multiply by 100.
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If the object is static (and remains static), or if it moves at a constant velocity, that means that the net force on the object...
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The terminal velocity would be affected by the weight of the bullet, the bullet's aerodynamic stability and its composition...
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No. Only light waves can travel through a vacuum.
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A force. To be precise, a force causes an acceleration - a change in velocity. In theory, if an object is already moving you...
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Newton's Thrid Law of Motion is known as Action -Reaction Law.
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Yes, a weight is a force - the force with which the Earth's gravitation attracts an object.
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X-rays are electromagnetic waves - that is, of the same nature as visible light. However, their frequency and therefore their...
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Conduction.
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The foucault pendulum gives proof that the earth rotates on its axis.
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That would probably be lithium - it has a very low density, less than water - 0.534 times the density of water to be precise....
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First, the alternating current is filtered through a rectifier diode, that is, a device that lets the current pass only in one...
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Salt water. The Gulf of Mexico is salt water because it connects to Atlantic Ocean.
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Use the formula PE = mgh (potential energy = mass x gravitation x height). Solving for height: h = PE/mg. On Earth, you can...
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I.e. is short for id est, witch is Latin for 'that is'. Usually i.e. has an example to help support a point right after it.
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The Doppler effect affects any wave, including electromagnetic waves. Basically, the idea of the Doppler effect is that the...
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a nuclear power plant costs $10,432
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energy transfer through transferring momentum. karim khan
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Here on Earth, the vertical acceleration of any projectile is -9.81ms-2. The minus sign shows that they accelerate downwards. ...
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Evaporation has the property of phase change, where a liquid absorbs energy at a constant temperature and turns into a gas. The...
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Young's modulus is determined experimentally by applying tensile strain (pulling on the ends) to a number of samples of the...
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because of the wavelength
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The period of a pendulum is given by the formula T = 2 * pi * sqrt(l / g), where l is the length of the string, and g is about...
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In an ideal pendulum, the only factors that affect the period of a pendulum are its length and the acceleration due to gravity. ...
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No, the magnetic object cannot be attracted. The magnet, instead, is attracted to the material, iron, steel, that lies in...
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Heat. The color we see in all the objects around us. The radar echo from an aircraft.
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They are transmitted using transmission lines and cables.
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A. Wavelength B. Frequency
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The index of refraction is the ratio between the speed of light in a vacuum, and the speed of light in the material. Therefore,...
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Faraday, proposed lines of flux and lines of force.
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Yes - all light (and in fact, all electromagnetic radiation) travels at the same speed (about 300 000 km/s). Different coloured...
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3 each. A proton is composed of 2 up quarks and 1 down quark. A neutron is composed of 1 up quark and 2 down quarks.
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Nuclear fusion is still only experimental, but the fuel used is a mixture of deuterium and tritium (both hydrogen isotopes)
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The simple answer is that the object moves at a constant velocity (or remains stationary if it wasn't moving). This is known as...
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The Doppler effect measures the direction of a moving object from its center of rotation. The Doppler Effect is related to the...
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An infrared telescope itself doesn't have a wavelength as it is not a wave, but a telescope. If you mean however what is the...
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no, it is a complex machine. Lever, wedge and inclined plane are examples of simple machines.
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No it doesn't. A unit vector indicates direction only. The length of the orthogonal components are RELATIVE to the absolute...
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There are two main types of magnets: Permanent magnets and electromagnets. Permanent magnets are always magnetized....
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transverse
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Density is the ratio of Mass to volume, D= M/V; the two measurements then are mass and volume.
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Calcium is a metal, part of the Alkaline Earth Metal group.
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