Part B 1L. 4 1.0-kg rock is dropped from a height of 9.0 m. At what height is the rock's kinetie twice its potential energy? a) 2.0 m b) 3.0 m c)6.0 m d 9.0 m e) 18 m 2. Galactic red shift of the...
Part B 1L. 4 1.0-kg rock is dropped from a height of 9.0 m. At what height is the rock's kinetie twice its potential energy? a) 2.0 m b) 3.0 m c)6.0 m d 9.0 m e) 18 m 2. Galactic red shift of the Spectrum of Hydrogen is an indication of: a) shrinking universe, b) supernova event, c) neutron star formation, d) expanding universe. 3. The reddish skies during a "Sunset" can be explained by the wave effect a) Red shift, b) Blue shift, c) Refraction, d) Dispersion, e) Diffraction. 4. What is the weight of 100 kg person on the Earth? e) 100 N d) 9.8 N c) 980 N b) 490 N a) 50 N Isotopes (not ions) of the element Carbon differ from each other in the 5. number of protons. number of electrons. number of neutrons. number of photons. (a) (b) (c) (d) 6. Orbital speed of the planets around the sun a) decreases when they are closer to the sun b) decreases when they get away from the sun c) is always constant d) 2.0x108 m/s 7. What is the speed of light in glass? c) 1.2x10 m/s b) 3.0x108 m/s a)2.3x108 m/s 8. The age of the Universe can be obtained by using: a) Hubble's Law. b) Uranium dating. c) Doppler Effect. d) Fossils. e) Age of the oldest rocks.
Part B 1L. 4 1.0-kg rock is dropped from a height of 9.0 m. At what height is the rock's kinetie twice its potential energy? a) 2.0 m b) 3.0 m c)6.0 m d 9.0 m e) 18 m 2. Galactic red shift of the Spectrum of Hydrogen is an indication of: a) shrinking universe, b) supernova event, c) neutron star formation, d) expanding universe. 3. The reddish skies during a "Sunset" can be explained by the wave effect a) Red shift, b) Blue shift, c) Refraction, d) Dispersion, e) Diffraction. 4. What is the weight of 100 kg person on the Earth? e) 100 N d) 9.8 N c) 980 N b) 490 N a) 50 N Isotopes (not ions) of the element Carbon differ from each other in the 5. number of protons. number of electrons. number of neutrons. number of photons. (a) (b) (c) (d) 6. Orbital speed of the planets around the sun a) decreases when they are closer to the sun b) decreases when they get away from the sun c) is always constant d) 2.0x108 m/s 7. What is the speed of light in glass? c) 1.2x10 m/s b) 3.0x108 m/s a)2.3x108 m/s 8. The age of the Universe can be obtained by using: a) Hubble's Law. b) Uranium dating. c) Doppler Effect. d) Fossils. e) Age of the oldest rocks.