The coaster is momentarily at rest with 60 thousand joules of gravitational potential energy at point B. The coaster then coasts down the first hill and reaches point C at

ground level. Between points B and C, 10 thousand joules of energy are transferred to the environment through sound and heat. On the bar graph below, slide the bars to indicate the quantity of the coaster's mechanical energy (ME), gravitational potential energy (GPE), and kinetic energy (KE) at point C.

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