Aroller coaster takes energy to make the first rise, but then it should be able to run the course of the track without any input of energy. this, however, is not true. energy continues to be needed. this is because some of the energy is converted to sound energy, and some is given off as heat energy. this is a good example of which law?

the first law of thermodynamics
the second law of thermodynamics
the third law of thermodynamics
the zeroth law of thermodynamics

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

What part of the ear is names after tools, such as the hammer and the anvil?

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate