The energy transformation that occurs during downhill skiing is
A) kin E ? grav E.
B) chem E ? kin E + therm E.
C) kin E ? grav E + therm E.
D) grav E ? chem E.
E) grav E ? kin E + therm E.
E
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The results of statistical studies of the exoplanet systems discovered to date suggest that
A) planets are common B) small planets outnumber large plates by a significant margin C) Earth-size planets are very common D) all of these are true
An example of a transverse wave is a
a. sound wave in air. b. wave on a rope. c. water wave. d. sound wave in a metal bar. e. none of the above
An electric generator is a device that converts electrical energy into mechanical energy
Indicate whether the statement is true or false
Where on the H-R diagram are the majority of stars that dominate the night sky?
What will be an ideal response?