Some Typical Kinetic Energies (a) How many joules of kinetic energy does a 75-kg person have when
Question:
(b) In the Bohr model of the atom, the ground-state electron in hydrogen has an orbital speed of 2190 km/s. What is its kinetic energy'? (Consult Appendix F)
(c) If you drop a l.0-kg weight (about 2 lb) from shoulder height, how many joules of kinetic energy will it have when it reaches the ground?
(d) Is it reasonable that a 30.kg child could run fast enough to have 100 J of kinetic energy?
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IDENTIFY Kmv Use the equations for freefall to find the speed of ...View the full answer
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