(b) Calculate the kinetic energy of a 10 g bullet travelling at a velocity of 2500 km/h.
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: 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…
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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 (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…
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 (in m) a hill can a car coast up (engine disengaged) if friction is negligible and its…
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- (a) If the car has the initial speed stated at a height of h = 0, how high, in meters, can the car coast up a hill if work done by friction is negligible? Part (b) If, in actuality, a 760-kg car with an initial speed of 108 km/h is observed to coast up a hill and stops at a height 23 m above its starting point, how much thermal energy was generated by friction in J? Part (c) What is the magnitude of the average force of friction, in newtons, if the hill has a slope 2.9° above the horizontal?A 500 kg dragster reaches a speed of 90 m/s on level ground, starting from rest. Its efficiency is only 8.20% in producing kinetic energy, because of friction and its design for high power without regard to efficiency. (a) How many gallons of fuel does it use during this acceleration, given there are 1.30 x 10 3 of energy per gallon? gal (b) How much waste beat (in 3) is produced? 3 (c) Once it is brought back to rest (assuming the engine shuts off at the end of the race), how much waste heat (in 3) has been produced?A ball is dropped from 13.6 ft above the ground. Assume that air-drag is negligible in this case. (a) At what height is half of its energy kinectic and half potential? (b) Using energy considerations only, what is the velocity of the ball just as it hits the ground?