A girl hears her echo return from a wall 100 sec after she
A girl hears her echo return from a wall 10.0 sec after she makes a sound. Assuming the speed of sound is 330 m/s. How far is the girl from the wall?
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radium is a radioactive element whose nucleus emits an alphaparticle a helium nucleus that has a kinetic energy of
which of the following lineages make up the living amniotanbspnbspnbsp frogs salamanders and caeciliansviviparous
a 325 mol sample of an ideal diatomic gas expandsadiabatically from a volume of 01990 m3 to 0704 m3initially the
the magnetic field of a cylindrical magnet that has a pole-face diameter of 45 cm can be varied sinusoidally between
a girl hears her echo return from a wall 100 sec after she makes a sound assuming the speed of sound is 330 ms how far
on a weekend archeological dig you discover an old club-ax thatconsists of a symmetrical 92 kg stone attached to the
a horizontal segment of pipe tapers from a cross sectional area of50 cm2 to 05 cm2 the pressure at the largerend of the
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refraction is caused by the fact thatthe angle of incidence is greater than the critical anglea given medium has
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