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Physics Question bank - set 5


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Solving these problems will help you strengthen your base and understanding.

1) Define the following: 
a) Gravitational Field (b) Intensity of this field (c) Gravitational Potential Energy(PE), (d) Gravitational Potential
                                                                             
 2) Superposition theorem holds good for Gravitational force and Gravitational PE. Explain this.

 3) Find out the expression of orbit velocity of Satellite.

 4) Escape velocity is root 2 times orbit velocity. Show this.
                                                                            
 5) Derive the total energy of orbiting satellite. Why is this negative.

 6) Explain the weightlessness in an orbiting satellite.

 7) Prove the last law of Kepler.
                                                                            

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8) State 3 laws of Kepler.

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