Suppose that you and two classmates are discussing the design of a roller coaster. One classmate says that each summit must be lower than the previous one. Your other classmate says this is nonsense, for as long as the first one is the highest, it doesn’t matter what height the others are. What do you say?

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-ssenger X s/6431259212/mydocument of Energy - 17571154 ✩ Extensions Help Last edit was made 8 minutes ago by Sumayya Ahmed Arial 1 H 14 + L T BI U A GE 2 U 31 二 三 三 三月 45 Submit Assic 6 ✓= 2) A roller coaster has a mass of 600kg. It drops from a hill of height 80m. At the top of the hill, it has zero velocity. How fast is it going when it reaches the bottom? !!! Student Help Desk | Schoology Blog | PRIVACY P (99+

As shown in the figure below, a small box is released from rest at point A along the horizontal diameter on the inside of a frictionless, hemispherical bowl. The box has a mass m = 295 g and the bowl has a radius R = 33.0 cm. 2R/3 (a) Calculate the gravitational potential energy of the box-Earth system (in J) when the box is at point A relative to point B. J (b) Calculate the kinetic energy of the box (in J) at point B. (c) Calculate its speed (in m/s) at point B. m/s (d) Calculate its kinetic energy (in J) when the box is at point C. (e) Calculate the potential energy (in J) when the box is at point C.

The dog stole the baby's dirty diaper that Kristan had just changed and was getting ready to throw away. The dog weighs 15kg and the diaper weighs 2kg. The dog runs outside and climbs up the stairs to the playhouse where it accidentally steps a little too far in the slide causing the dog to slide down the slide with the diaper in his mouth. The height of the slide is 1.5m high off the ground. What is the change of potential energy of the dog assuming it started at rest and slid all the way to the ground?