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When climbing a stair case, the body converts stored chemical energy from food into kinetic energy to move the muscles. This process involves the muscles contracting and releasing to generate mechanical energy, enabling you to ascend the stairs.

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1y ago

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What is the energy we gain from climbing a mountain?

Your gravitational potential energy would increase in this case. Of course, this comes at the cost of another type of energy; in this case, chemical energy stored in your body, from the food you ate.


The energy produced when 1kg of a substance is fully converted into enetgy is?

The energy produced when 1kg of a substance is fully converted into energy is given by Einstein's famous equation E=mc^2, where E is the energy produced, m is the mass of the substance (1kg in this case), and c is the speed of light. This equation shows that a large amount of energy can be generated from a small amount of mass.


A car that brakes suddenly comes to a screeching halt Is the sound energy produced in this conversion a useful form of energy?

The sound energy produced from a car coming to a screeching halt is not a useful form of energy, as it represents energy lost in the conversion process. In this case, the kinetic energy of the car is being converted into both heat and sound energy, which are typically considered wasted energy.


How much thermal energy is produced in an electric motor j of electrical energy are converted into 92j of mechanical energy?

If 92 J of electrical energy are converted into 92 J of mechanical energy in an electric motor, then all of the electrical energy is being converted into mechanical energy. No thermal energy is being produced in this scenario. The efficiency of the motor in this case is 100%, meaning all the input energy is being converted into useful work without any energy loss in the form of heat.


Is climbing stairs an example of work?

Yes, climbing stairs is considered an example of work in a physics context. Work is done when a force is applied to move an object over a distance in the direction of the force. In this case, you are exerting a force to move your body against the force of gravity while climbing stairs.