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Calculate the potential energy in a spri...

Calculate the potential energy in a spring.

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An electric dipole of length 4cm, when placed with axis making an angle of 60° with uniform electric field experiences a torque of 4sqrt3 Nm. Calculate the potential energy of the dipole, if it has charge of +- 8 nC.

Two wire having same length and same radius and given same load. One made of steel and other copper. If Young's modules of elasticity is twice that of other then calculate the potential energy stored in copper and steel.

Calculate the electric potential energy of the system of charges shown in figure.

Calculate the total energy of a simple harmonic motion.

A man of mass 60 kg walks up to the top of a building of height 15 m. Calculate the increase in potential energy.

Calculate the electric potential for a point charge.

Calculate the total energy of an artifical satellite. What is the meaning of negative sign.

Prove that potential energy = mgh.

Two springs of spring constant 1500 Nm^(-1) and 3000Nm^(-1)respectively are stretched with the same force that will have potential energy in the ratio

R G PUBLICATION-WORK ENERGY AND POWER-EXERCISE
  1. Can a body posses momentum without KE?

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  2. Two masses one n times heavier than the other are dropped from same he...

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  3. State and prove work-energy theorem.

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  4. What is collision? Discuss types of collision.

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  5. Obtain an expression for gravitational potential energy of a body.

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  6. Find the work done in moving a particle along a vector barS = (4hati -...

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  7. A particle is moving along x-axis from x = 0 to x = 5 under the influe...

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  8. What is co-efficient of restitution. Proved that for elastic colision ...

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  9. A pump lifts 20 kg of water in one minute to a vertical height of 30m....

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  10. Prove that the momentum is conserved in collision

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  11. A ball moving with a speed of 9m.s strikes an identical ball at rest, ...

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  12. The distance x of a particle moving in one dimension, under the action...

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  13. If the momentum of a partical increased by 50%,what is corresponding i...

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  14. Show that power= force X velocity

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  15. Verify the law of conservation mechanical-energy for a freely falling ...

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  16. What percentage of K.E. of moving particle is transferred to a station...

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  17. Calculate the potential energy in a spring.

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  18. What is the form of momentum in two dimensional collision?

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  19. Show that angular momentum is conserved.

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  20. Obtain graphically and mathematically work done by a variable force.

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