A brick slides across a horizontal rough surface and eventually comes to a stop. What happened to the kinetic energy of the brick?
A. It was converted to other energy forms, mostly heat
B. Nothing; it is still in the brick but is now called potential energy
C. It was converted to a potential energy of friction
D. It was simply destroyed in the process of stopping
Answer: A
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What important change in the Sun over the past four billion years is thought to be very important to understanding the climates of Venus, Earth, and Mars?
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Why does the Moon play a larger role in tides than the Sun?
What will be an ideal response?
The 105°W longitude meridian is the center of the ______________ Standard Time zone in the United States
a. Pacific b. Mountain c. Eastern d. Central