Top network posts

• 78 If there is friction and everything stops on earth why does earth not stop due to friction?
• 51 What causes electrical boxes to hum?
• 24 When an electron around an atom drops to a lower state, is 100% of the energy converted to a photon?
• 22 Is there evidence to support that the Earth has a molten core?
• 20 Can a virtual object exist without an observer?
• 15 Is there a quick way of finding the kinetic energy on spherical coordinates?
• 13 Photoelectric effect – Why does one electron absorb one photon?
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