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प्रश्न
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
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उत्तर
संबंधित प्रश्न
What is nuclear energy?
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
State the work energy theorem.
What do you understand by mechanical energy?
What is the main energy transformation that occur in:
Charging of a battery.
State two advantages and two disadvantages of using hydro-energy for producing electricity.
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
Find out the types of energy from the following puzzle.
