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  • How much kinetic energy does a 7.2kg dog need to make a

    First, calculate the initial velocity of the dog given with the vertical height and the acceleration due to gravity which is calculated through the equation,

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  • Electricity consumption in the production of aluminium

    According to Alcoa, the world's largest producer of aluminium, the best smelters use about 13 kilowatt hours (46.8 megajoules) of electrical energy to produce one kilogram of aluminium the worldwide average is closer to 15 kWh/kg (54 MJ/kg). Worldwide production of aluminium in

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  • Conversion of Mass to Energy jick.net

    That is, one KILOTON's worth of energy is released in the conversion of 0.04658 grams [46.58 mg] of mass.Thus a MEGATON [equivalent to one million tons of TNT or 10 3 kt] is released in the conversion of 46.58 grams of mass and the largest thermonuclear device [bomb] ever detonated, about 100 megatons' worth, converted some 4.658 kg of mass directly into raw energy.

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  • How much carbon dioxide is produced from burning gasoline

    How much carbon dioxide is produced from burning gasoline and diesel fuel? EIA estimates that U.S. motor gasoline and diesel (distillate) fuel consumption for transportation in 2016 resulted in the emission of about 1,102 million metric tons of carbon dioxide (CO2) and 437 million metric tons of CO2, respectively, for a total of 1,540 million metric tons of CO2.

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  • Orders of magnitude (energy) Wikipedia

    Kinetic energy of 7.26 kg standard men's shot thrown at 14.7 m/s [citation needed] by the world record holder Randy Barnes 8.01吆 2 J Amount of work needed to lift a man with an average weight (81.7 kg) one meter above Earth (or any planet with Earth gravity)

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  • 7. Kinetic Energy and Work Kinetic Energy Physics

    2 (3 kg )(14 m /s)2 = 294 J So as the ball falls, its kinetic energy increases. It is the gravitational force that accelerates the ball, causing the speed to increase. The increase in speed also increases the kinetic energy. The process of a force changing the kinetic energy of an object is called work. Work: Work is the energy transferred to

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  • General Physics 1 Lab PHY 2048L Lab 4: Work Kinetic

    2. At the lowest point kinetic energy is zero / maximum while potential energy is zero / maximum. 3. Mass affects / does not affect the conservation of energy. 4. How much potential energy does the 60. kg skater have before she starts her ride, 12 m above the ground? ____ 5. How much kinetic energy does a 60.0 kg skater have traveling with a

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  • Kinetic and Potential Energy word problems Flashcards

    A 1.0 kg ball is thrown into the air with an inital velocity of 30 m/s. a. How much kinetic energy does the ball have? b. If the 1.0 kg ball has the same amount of potential energy at the top of its ascent as the amount of kinetic energy, how high did the ball travel?

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  • 7.3 Conservation of Energy Weebly

    is equal to the total energy before the transformation. We can use this law to solve realworld problems, as shown in the example below. • A 0.50kilogram ball is tossed upward with a kinetic energy of 100. joules. How high does the ball travel? 1. A 3.0kilogram toy dump truck moving with a speed of 2.0 m/s starts up a ramp. How high does

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  • Energy Units of Measurement Wiki FANDOM powered by Wikia

    thumb Energy (from Latin Energia and Greek Ενεργεια) is a measure of the ability to do mechanical work. It is a fundamental concept pertaining to the ability for action. In physics, it is a quantity that every physical system possesses. This quantity is not absolute but relative to a state of

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  • Plutonium as an Energy Source Institute for Energy and

    Assuming a price of $40 per kilogram of natural uranium, uranium235 is worth about $5,600 per kilogram. Since the energy per fission from plutonium239 and uranium235 is about the same, the theoretical fuel value of fissile plutonium can be put at $5,600 per kilogram.

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  • Help check my simple physics? If they aren't right can you

    Jun 06, 2007 · What is his kinetic energy? A: 140 2. A 1400kilogram car is moving at a speed of 25 m/s. How much kinetic energy does the car have? A: 437,500 3. A 50.0kilogram cheetah has a kinetic energy of 18,000 J. How fast is the cheetah running? A: 26.8 4. A 10kg rock is dropped and hits the ground below at a speed of 60 m/s.

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  • How Much Energy is on my Plate? Teaching Materials

    Comparison of the energy content in the food to the energy required to produce the food. Students may not at first realize that a food calories can be quantitatively compared to other type of energy. They also may not recognize the the energy used to produce the food does not include the light energy that is necessary for the soybeans to grow.

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  • Energy Density of Hydrogen The Physics Factbook

    Hydrogen has one of the highest energy density values per mass. Its energy density is between 120 and 142 MJ/kg. This means that for every 1 kg of mass of hydrogen, it has an energy

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  • The workenergy theorem states that the work done on an

    closed system the total amount of energy does not change. A block of mass m = 50 kg moves on a rough horizontal surface with a coefficient of kinetic friction µ = 0.5. The The workenergy theorem states that the work done on an object is equal to the change in kinetic energy of that object

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  • TNT equivalent Wikipedia

    TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. The "ton of TNT" is a unit of energy defined by that convention to be 4.184 gigajoules, [1] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms or one megagram) of TNT .

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  • How much Solar Energy does the Sun Produce?

    In one hour, the sun produces 1.4 x 10^31 Joules of solar energy, or 3.8 x 10^23 kilowatthours.. Although it sounds unbelievable, the sun produces more solar energy every hour than the entire energy needs of human civilization.

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  • How much energy does it take to melt 2 kg of ice?

    If a body is moving at a constant speed, without friction, it does not absorb any energy, because it does not require any force to continue in a straight line. This follows from Newton's first law of motion.

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  • Work, Power & Energy Study Guide

    kinetic energy of block A what is the kinetic energy of block B? 18. A 0.20kilogram hail dropped vertically from a height of 7.00 meter above the floor bounces hack to a height of 2.80 meter. What is the mechanical energy lost by the ball as it bounces? 19.

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  • Ch. 11 Energy and Motion Review Weebly

    Ch. 11 Energy and Motion Review _C_____ 1. Which of the following has kinetic energy? What is the kinetic energy of a 1kilogram ball is thrown into the air with an initial velocity of 30m/sec? DUPLICATE W/ #26 a. How much potential energy does the ball have when it reaches the top of its ascent? b. How high into the air did the ball travel?

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  • Energy for the World Why Uranium? World Nuclear

    Energy can be considered in two egories primary and secondary. Primary energy is energy in the form of natural resources, such as wood, coal, oil, natural gas, natural uranium, wind, hydro power, and sunlight. Secondary energy is the more useable forms to which primary energy may be converted, such as electricity and petrol.

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  • Energy and Power UC Santa Cruz

    Joule is the S.I. unit of energy describing mechanical work, heat, and electricity. The mechanical definition of a Joule is the amount of energy expended, or work done, to exert a force of 1 Newton 1 meter in the direction of the force .

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  • Science Chapter 4 Test Flashcards Quizlet

    Calculate the kinetic energy of a rock with a mass of 55 kg if the rock rolls down the hill with a velocity of 8 m/s. 4,386,250 J Calculate the kinetic energy of a truck that has a mass of 2900 kg

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  • Fuel comparison euronuclear

    Related to one kilogram, uranium235 contains two to three million times the energy equivalent of oil or coal. The illustration shows how much coal, oil or natural uranium is required for a certain quantity of electricity.

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  • rockets How much Energy is required to put 1 kg in LEO

    The theoretical minimum is surely the kinetic energy of a kg travelling at about 7.8km/sec, the speed required for a minimal LEO. This is given by 1/2.m.v^2 and comes out at 30 MegaJoules. This is given by 1/2.m.v^2 and comes out at 30 MegaJoules.

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  • Kinetic and Potential Energy word problems Flashcards

    A 1.0 kg ball is thrown into the air with an inital velocity of 30 m/s. a. How much kinetic energy does the ball have? b. If the 1.0 kg ball has the same amount of potential energy at the top of its ascent as the amount of kinetic energy, how high did the ball travel?

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  • How much energy does it take (on average) to produce 1

    How much energy does it take (on average) to produce 1 kilogram of the following materials? Wood (from standing timber): 37MJ (830 to 1,950 watthours). To focus on energy efficiency is to make present ways of life nonnegotiable. Fruit Walls. Urban Farming in the 1600s The Chinese Wheelbarrow.

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  • Heat, Work and Energy Engineering ToolBox

    Energy. Energy is the capacity to do work (a translation from Greek"work within"). The SI unit for work and energy is the joule, defined as 1 Nm. more energy units Moving objects can do work because they have kinetic energy. ("kinetic" means "motion" in Greek). The amount of kinetic energy possessed by an object can be calculated as

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  • Human energy requirements

    The report is not meant merely to describe the energy expenditure and requirements of population groups. It is intended also to be prescriptive in supporting and maintaining health and good nutrition, defining human energy requirements and proposing dietary energy recommendations for populations.

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  • How much carbon dioxide is produced when different fuels

    The amount of CO2 produced when a fuel is burned is a function of the carbon content of the fuel. The heat content, or the amount of energy produced when a fuel is burned, is mainly determined by the carbon (C) and hydrogen (H) content of the fuel.Heat is produced when C and H combine with oxygen (O) during combustion.

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  • The Equivalence of Mass and Energy (Stanford Encyclopedia

    Implicitly referring to the equivalence of mass and energy, Cockcroft and Walton then simply assert that a mass 0.0154 amu "is equivalent to an energy liberation of (14.3 ± 2.7) 吆 6 Volts" (p. 236).

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  • Potential and Kinetic Energy cstephenmurray

    An object with kinetic energy has energy stored in motion. When the object slows down the energy is released into potential energy (if going up) or some other kind of energy (like heat [thermal energy] in the brakes of car). 10 m/s 20 kg More Ek More mass = more Ek 10 kg Less Ek 10 m/s 10 m/s More Ek More velocity = more Ek Less Ek 10 kg 5 m/s

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  • Energy Density of Coal The Physics Factbook

    Energy density can be defined as the amount of energy per mass. Its SI units are J/kg but MJ/kg is more common. Eighty six percent of the coal burned in the United States is used by power plants to make energy for electricity.

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  • How much energy is needed to evaporate 1 liter of water in

    May 02, 2010 · The energy needed to evaporate the water is fixed, the question is where does your energy come from and where does it go. When you boil water, a lot of the heat flows into the pot, the air, the stove itself.

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  • Power and Energy concepts for students and eduors.

    If you lift a 2 kg weight 1 meter in 1 second, then the rate of energy conversion is 2 x 10 = 20 Joules per second, or 20 Watts of power. If you can keep lifting a 1 kg weight to a height of 1 meter every second, weight after weight after weight, then you will be steadily producing 10 Watts of power.

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  • Energy for Plastic Robert B. Laughlin

    The energy for plastic is then compared to reported numbers for global and U.S. primary energy consumption, which is the net sum of energy from petroleum, natural gas, coal, renewable, and nuclear resources consumed in the transportation, industrial, residential and

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  • Energy in natural processes and human consumption some

    Energy in natural processes and human consumption some numbers The average person in the US consumes 60 barrels of oil (2520 gallons) per year and on average this is 10,000 watts of power consumption (the calculation is made relatively easy by consulting tables below and keeping track of units: [2520 gallons /yr x

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  • Conversion of Mass to Energy jick.net

    That is, one KILOTON's worth of energy is released in the conversion of 0.04658 grams [46.58 mg] of mass.Thus a MEGATON [equivalent to one million tons of TNT or 10 3 kt] is released in the conversion of 46.58 grams of mass and the largest thermonuclear device [bomb] ever detonated, about 100 megatons' worth, converted some 4.658 kg of mass directly into raw energy.

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