Find the speed of sound in air

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Q. A stone is dropped into a well 45 m deep. The sound of the splash is heard 3.13 seconds after the stone is dropped. Find the speed of sound in Air. Take g=10 m/s

Q. An alpha particle with kinetic energy of 12.5 MeV makes a head-on collision with a lead nucleus at rest. What is the distance of closest approach of the two particles? (Assume that the lead nucleus remains stationary and that it may be treated as a point charge. The atomic number of lead is 82. The alpha particle is a helium nucleus, with atomic number 2.

Reference no: EM1360780

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