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What else can I help you with?
Is the energy acquired by a body because of its motion is called potential energy?
No, energy created from movement is called Kineticenergy. Potential energy is energy created from no moving sources.
How many days does it take astronauts to get to the sun?
The farthest away from Earth that any astronaut has ever been is about one-quarterof one percent of the distance to the sun. No astronaut has ever even tried to go tothe sun, and neither has any unmanned space probe. That's one of the most difficultmissions for a space launch. Anything that starts out from Earth has so much kineticenergy being in Earth's orbit around the sun, that it would take a huge amount of fuelto reduce its velocity enough to fall anywhere close to the sun.And then there's that small matter of burning up . . .
Why an object at 200 degrees Celsius is twice as hot as one at 100 degrees Celsius?
First of all, the expression "twice as hot" is, frankly, quite meaningless. Or rather,it is so full of so much meaning that different people see different meanings in it.In order to make any progress toward an answer, we first have to agree on what"twice as hot" means. And since the question is no help in this regard, I get to define it !I'm going to say that "twice as hot" means having double the average kineticenergy of its constituent molecules as compared with an object of identical size,shape, and composition. In other words, an object containing exactly double theamount of heat energy per unit volume compared to another identical object.In that case, one object is twice as hot as the other one when its temperatureis double the temperature of the other one on an absolute scale of temperature.The absolute scale of temperature begins at Zero Kelvins, -273.15° Celsius,-459.67° Fahrenheit, etc.So an object at 200° Celsius is 473.15/373.15 = 1.268 times as hot as anidentical object at 100° Celsius.And the original question of "Why is it . . ." is moot, because it ain't.
Can you convert voice energy to electrical energy?
Yes it is possible to convert sound energy to electrical energy by using the vibrations (sound's mechanical kineticenergy) to drive a microphone, of which there are several types. Such an energy-converter generally is called a transducer: a loudspeaker is also a transducer, working the other way round.One microphone type moves a fine coil across a magnetic field, thus inducing a tiny electrical current matching the sound's frequency and proportional toits amplitude. The pick-up on an electric guitar works in a somewhat similar way, there by the steel stringaltering the magnetic field around a coil to induce the currentOther microphones by using the sound pressure to vary the capacitance or the resistance of thesensing unit itself.Still other microphones and their underwater equivalents, "hydrophones",use piezo-electric ceramic as the transductive element. A piezo-electric material generates a small voltage across it in response to the changing strainscreated by the changing stresses of the sound's presure.I used italics to help you see it uses the fundamental difference between stress and strain.With all these devices, the output is fed to a suitable amplifier to increase the tiny currents to something more useful.
Uniform solid sphere with dia 28cm and mass 2.5kg rolls without slipping on a horz surface at a constant speed of 2.0 m per s What is its rotational kineticenergy and total kinetic energy and ang mome?
Sphere radius, R = (28 cm)/2 = 14 cm = 0.14 m Speed, v = 2 m/s Mass, M = 2.5 kg Rotational KE = ½𝙸𝜔² For solid sphere, the moment of inertia, 𝙸 = ⅖MR² Rotational KE = ½(⅖MR²)(v/R)² = ⅕Mv² = ⅕(2.5 kg)(2 m/s)² = 2 J Total KE = Linear KE + Rot KE Total KE = ½Mv² + ⅕Mv² Total KE = (7/10)(Mv²) Total KE = (7/10)(2.5 kg)(2 m/s)² Total KE = 7 J Angular momentum, 𝜔 = v/R = (2 m/s)/(0.14 m) = 14.3 rad/s
When energy is converted from one form to another does the amount of energy converted increase decrease or the stay the same?
First, according to the equation E=MC2 where E is energy M is mass or matter and C is the speed of light, and several of Einstein's/Newtons/other various scientists... theories. Energy, and matter, CANNOT be destroyed, only converted.However, when converting energy to matter the above equation will answer your question. We know that a certain amount of energy can be converted into a certain amount of matter. We also know that that energy cannot be converted all at once. So as you convert more energy into matter the amount decreases, but the speed at which the energy is converted also decreases because the amount of energy available to convert decreased.A good example of this is the formation of the Universe itself. According to the Big Bang Theory an extremely dense area in space suddenly exploded/expanded because of the amount of matter and potential energy in that area. The matter and potential energy were converted into raw kineticenergy. Because there was so much raw energy in that initial area in space after the "Big Bang" matter immediately started forming (i.e. space "dust" particles, mostly Hydrogen) Sidetrack: We know that Hydrogen is the most abundant atom in our Universe.But, as our Universe expanded and the raw energy spread out (less energy per light-year) less energy was converted into matter evidenced by the fact that less Hydrogen atoms were present in less "active" parts of space.The same is also true when applied to matter converting into energy. In a formation of a solar system the gravitational attraction between particles(matter/mostly Hydrogen) causes the particles to spin causing the atoms to move quicker and closer together until a "Fusion Reaction" occurs, hence our Sun. Fusion reactions emit light, a form of energy.But, as a star nears the end of its life, there is less matter present in a star. Because there is less matter present less fusion reactions occur, therefore less light or energy is emited.
