what is the Dynamic Energy Budget theory?
104201
The Dynamic Energy Budget (DEB) theory offers rules to describe the uptake and use of energy and nutrients by biological organizations (cells, organisms and populations). It aims to provide a theoretical underpinning for indirect calorimetry.
55228
Not always. If the object is in motion, then no. The total energy, aka total mechanical energy is always constant due to the Law of Conservation and Energy. It depends on the problem. Certainly,if you know the total mechanical energy in the system than you can find a variable for the kinetic energy or gravitational potential energy,assuming you given other variables.
1107661
for a window fan, \n\nelectrical energy is input and transformed into mechanical energy, plus there is a heat loss.
771568
Basically you have the right idea. Use momentum (mass x velocity) for the motion and the sudden change in speed and/or direction (acceleration) and you get force x time = kinetic energy trying to rip you apart or squash you like a bug.
145763
Linmar--i want to propose MY personal theory, which cannot be scientifically proven in any publication to date.  I had a vision one evening after watching a show about spontaneous combustion victims.  One victim was a middle-aged man with a stump for an arm.  He described the event as a mild tingling with no pain, and much to his dismay, his hand and most of his forearm turned to ash.  \n\nUsing his experience, this isn't about fat burning, or too much oxygen, or even about oxidation as we know it.  The material in our bodies has stored chemical potential energy.  We have internal heat generation which keeps our bodies warm.  It is like a clock spring slowly unwinding.\n\nNOW, if you sped up this clock, relative to normal time-space, your energy would dissipate so rapidly, that the object WOULD turn to ash due to the release of heat.  If a human arm dissipates 10 watts every second for the lifetime of the arm, say 70 years, that equals 22*10^9 joules.  THAT"S A LOT OF ENERGY.  Now for instance, if for some reason a time-space continuum intersected with the man, if his arm actually was accidentally inserted into another dimension whose time constant was 100 times our speed, his arm simply aged and died.  All the energy that would have unwound in this time space over the course of 70 years, unwound in minutes or seconds.  If there are time-space defects and other dimensions, it makes sense that entropy may not unwind at the same pace in all spaces.  \n\nIt reminds me that the earth is travelling at thousands of miles per hour through space.  We have no perception of this at all.  But put a cosmic bed post by the earth, and have an impact, BAM!! Bye-bye earth.  I think it is the same thing.  For some unlucky reason, I beleive this particular man had an interdimensional event wherein the potential energy in his arm dissipated very quickly in that other dimension.  \n\nFood for thought--tell me whatchya think.
193418
Heisenberg notwithstanding, I have never observed my chair turn into energy, even as a transient state, no, not even for an instant.  It must be when I'm not looking.\n\nEnergy, if unused as work, turns into mass... in my case, a mass of fat around the middle.
43971
Da_vinci's answer is partly correct but it confuses force, power and energy. Energy is the integral of power over time, or more simply, if power is constant, energy is power * time. Kinetic energy can also be expressed as .5*M*V^2, M being mass and V being velocity.\nDa_vinci's example illustrates that since velocity is measured with respect to some reference, so is kinetic energy. Without a reference an accelerated object receives a velocity change but the kinetic energy change cannot be defined. Similarly, without a reference, decelerating the object requires application of a force but does not recover any energy.
772410
electrical energy-------> heat + light\ndoes that help?
359485
absorbed, reflected and used (IE: converted to energy)
1131325
Maybe this can help...all you have to do is a search in Yahoo or Google...\n\nhttp://www.think-energy.com/ThinkEnergy/11-14/activities/EnergyTrans.aspx\n\nTry searching for "energy" or "kinetic energy"
952897
Decreased....your using energy not storing it
1085576
F = d/dt(mv) [the time deravitive of the momentum] = dp/dt  where p is the momentum\n\nWork = Energy = F x distance\n\nPower = Energy/time\n\nPower = (F x distance)/time\n\nPower = [(dp/dt) x distance]/t\n\nremember dp/dt = d/dt(mv) = m dv/dt + v dm/dt
347168
Energy that enters the system from the surroundings.
595852
It would end up as heat. At least that is the usual place you say all the energy went when you can't otherwise account for it. Like where does the energy go when you drop a bean bag on the ground? Yell out loud? Turn on a light? slow your fall with a parachute? And on and on and on.
44841
A good place to start will be to look at the following websites \n\nThermal Energy and States of Matter\nhttp://www.pschweigerphysics.com/thermenergy.html\n\nThermal Energy\nhttp://sol.sci.uop.edu/~jfalward/physics17/chapter6/chapter6.html\n\nThermodynamics and Thermal Physics guides\nhttp://physics.about.com/cs/thermodynamics/\n\nIf your doing a project you might look into "Ocean Thermal energy conservation" as a topic.\n\nOcean Thermal energy conservation is used to generate electricity using the temperature difference of seawater at different depths
613443
Niuchemist is mostly right and deserves the vote, but there is one correction I would make-heavier molecules don't necessarily have less "kinetic energy", they move more slowly-it is the speed of movement that is the critical thing, not the kinetic energy, which is a product of speed *and* mass.
43785
it produces a lot of energy