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A nucleus of radium (.(88)Ra^(226)) d...

A nucleus of radium ` (._(88)Ra^(226))`
decays to `._(86)Rn^(222)`
by emisson of `alpha-` particle `(._(2)He^(4))` of energy `4.8MeV`. If meass of `._(86)Rn^(222)=222.0 a.m.u` mass of `._(2)He^(4)` is `4.003 ` a.m.u. and mass of `._(88)Ra^(226)` is `226.00826` a.m.u., then calculate the recoil energy of the daughter nucleus. Take ` 1 a.m.u. =931MeV`

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SL ARORA-Work, Energy and power-EXERCISE
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  3. What is the work done is crrrying a suitcase wighting 10 kg f on his h...

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  4. Calculate the amount of work done by a labourer who carries n bricks, ...

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  7. A force vecF=hat i+5 hat j+7 hat k acts on a particle and displaces it...

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  8. A particle is acted upon by constant forces vecF=-2hati+3hatj+4hatk an...

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  9. A man weighing 50kg f supports a body of 25 kg f on his head. What is ...

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  10. Explain how work done by a variable force may be measured.

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  14. Figrue shows the F-x graph. Where F is the force applied x is the dist...

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  16. The momentum of a body of masss of 5kg is 500kg ms^(-1). Find the its...

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  18. A body of mass 2kg is resting on rough horizontal surface. A force 20N...

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  20. A electron and a proton are detected in a cosmic ray experiment, the e...

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