(a) How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and its initial speed is 110 km/h? (b) If, in actuality, a 750-kg car with an initial speed of 110 km/h is observed to coast up a hill to a height 22.0 m above its starting point, how much thermal energy was generated by friction? (c) What is the average force of friction if the hill has a slope 2.5º above the horizontal?

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Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

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Q: (a) How high a hill can a car coast up (engines disengaged) if work done by friction is negligible…

A: Given data: The initial speed of the car is: ui = 110 km/h The final speed of the car when reaches…

Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A:

Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A: Step 1:a)Initial speed is 74hkm​Conversion of speed in terms of meters per…

Q: (a) How high a hill can a car coast up (engine disengaged) if friction is negligible and its initial…

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Q: How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and…

A: Applying conservation of energy , we can write that .Total energy is sum of Kinetic and potential…

Q: (a) How high a hill can a car coast up (engine disengaged) if friction is negligible and its initial…

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Q: (a) What is the efficiency of an out-of-condition professor who does 2.00 x 105 J of useful work…

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Q: (a) What is the efficiency of an out-of-condition professor who does 2.00 ✕ 105 J of useful work…

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Q: How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A:

Q: (a) What is the efficiency of an out-of-condition professor who does 2.10 x 105 J of useful work…

A: A) work = 2.1 × 105 J      Food Energy = 500×1000 cal                             = 21× 105 J  B)…

Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A: Part (a): Given: The initial speed of the car is 70 m/s.

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Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A: Given,  (a) initial speed = 74 km/h We need to calculate,  Height =? (b) Given, Mass = 750 kg Height…

Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A: The initial speed of the car, vi=106 km/h=106 kmh×1000 m1 km×1 h3600 s=29.44 m/s   The expression…

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Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A: Initial speed=76km/h

Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A: Solution: In order to determine the potential and kinetic energy of an object we have:  P.E = mgh…

Q: a) What is the efficiency of an out-of-condition professor who does 1.90 ✕ 105 J of useful work…

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Q: How much work does a supermarket checkout attendant do on a can of soup he pushes 0.320 m…

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Q: (a) What is the efficiency of an out-of-condition professor who does 2.30 ✕ 105 J of useful work…

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Q: (a) What is the efficiency of an out-of-condition professor who does 2.30 ✕ 105 J of useful work…

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Q: How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

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Q: (a) How high (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…

A: (a) Initial speed,        v = 74 km/h=74 ×518=20.56 m/s                                 Applying…

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