An object that has 100 joules of potential energy at the top of a ramp yields 100 joules of kinetic energy at the bottom of the ramp. however, when an experiment is performed 100 joules of potential only yields 80 joules of kinetic at the bottom of the ramp. how is the energy lost? does this violate the conservation of energy? a) this does violate the conservation of energy because 20 joules of energy are lost. b) this violates the conservation of energy because some energy is lost to its surroundings. c) the experiment must be flawed because there must be 100 joules of kinetic energy at the bottom. d) this does not violate the conservation of energy, because the other 20 joules are converted into heat.

Choose the description that best matches each word. write the correct letter in the blank. 1. ostinato a. large, extended composition for chorus and orchestra 2. atonality b. full orchestra 3. musicology c. festive, march-like opening to a play or “semi-opera” 4. concerto d. small group of solo instruments 5. minimalism e. music contrasting a full orchestra and solo instruments 6. art song f. music played under the action to influence the mood 7. strophic form g. a vocal song focusing on artistic expression 8. incidental h. each stanza of a poem is set to the same music 9. oratorio i. repeated musical pattern that provides unity to a piece 10. dissonance j. steady beat; simple harmonies; short, repetitive melody 11. concertino k. harsh, unstable sounding of pitches; harmonic tension 12. tutti l. all 12 tones of chromatic scale, no tonal center 13. entrada m. the historical and scientific study of music

Which of the following is an open question? "where are you from? " "when did you graduate from college? " "why did you leave your last job? " "do you have transportation to work? "

Use the conversion factors to rewrite the distances in different, but equivalent, units. celestial objects distance from the star object a 0.000001877 pc object b 30.06 au object c 778.3 million km