The rollercoaster rolls from point A to point B, a drop of 35m. Calculate the speed of the roller coaster at point B.

Assume that the decrease in potential energy store is equal to the increase in kinetic energy store.

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A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

How does the entropy of steam compare to the entropy of ice?