Jarrad Schomaker

Popular questions and responses by Jarrad Schomaker
  1. Fluid Mechanics

    A 6 kg. piece of metal displaces 1 liter of water when submerged. What is its density? The volume of the water dispaced was given, so... Density metal= massmetal/volumemetal The volume of water displaced is the same as the volume of the metal.

    asked on June 17, 2005
  2. radio message

    The nearest star beyond the sun is Alpha Centauri, 4.2 x 1016 meters away. If we received a radio message from the star today, how long ago would it have been sent? The distance that light travels in a vacuum in one year, approximately 9.46 trillion (9.46

    asked on June 28, 2005
  3. radioactive decay

    What elements results if one of the neutrons is in a nitrogen neucleus is converted by radioactive decay into a proton? The atomic number goes from 7 to 8, while the atomic weight stays the same. An electron (beta-) is emitted from the nucleus. Actually,

    asked on June 28, 2005
  4. chemistry

    Use the shell model to explain why a lithium atom Li, is larger than a beryllium atom, Be. I don't think it is larger. It has a lower atomic number 3 vs 4. It is therefore lighter see below link and click on elements. http://www.webelements.com/

    asked on June 28, 2005
  5. electron

    An electron drops from the fourth energy level, in an atom to the third level and then to the first level. Two frequencies of light are emitted. How does their combined energy compare with the energy of the single frequency that would be emitted if the

    asked on June 28, 2005
  6. Sodium Vapor

    How might you distinguish a sodium vapor street lamp from a mercury vapor steet lamp? http://en.wikipedia.org/wiki/Sodium_lamp http://en.wikipedia.org/wiki/Mercury-vapor_lamp I think you would see colors better with the Mercury Vapor Light You can

    asked on June 28, 2005
  7. thermal Energy

    Suppose a bar 1 m long expands .5 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated? If each one meter expands a half centimeter, then one hundred meters will expand 100*.5cm. Think on that. NO I DON'T

    asked on June 17, 2005
  8. Electromagnetic Iduction

    Neon sign require about 12,000 V for their operation. What should be the ratio of the number of loops in the secondary to the number of loops in the primary for a neon-sign transformer that operates off 120 V lines? Nprimary/Nsecondary=

    asked on June 17, 2005