Match these items. 1 . Rutherford emitted from a cathode ray tube 2 . J. J. Thomson discovered the neutron 3 . electrons discovered the electron 4 . Chadwick postulated the quantum atom 5 . nucleus discovered the proton 6 . Dalton father of atomic theory 7 . Bohr location of most of the mass of the atom

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Work = force × a. work b. energy c. distance d. momentum