The aircraft carrier USS George Washington has mass 1.0 ×108kg. When its engines are developing their full power of 260,000 hp, the George Washington travels at its top speed of 35 knots ( 65 km/h).     Part A If 70 % of the power output of the engines is applied to pushing the ship through the water, what is the magnitude of the force of water resistance that opposes the carrier’s motion at this speed? F = ___ N

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A: The weight of the crate,

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Q: A 7.80 g bullet is initially moving at 470 m/s just before it penetrates a tree trunk to a depth of…

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Q: Draw a sketch and also a good FBD to identify the relevant forces doing work. Pay attention to the…

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Q: (a) Find the useful power output (in W) of an elevator motor that lifts a 2600 kg load a height of…

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A: Since you have asked question with multiple sub-parts in a single request, we would be answering…

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Q: Part A An elevator weighing 2900 N ascends at a constant speed of 7.0 m/s. How much power must the…

A: weight of elevator (w) = 2900 N constant speed of elevator (v) = 7 ms , upwards

Q: (a) How long (in s) will it take an 865 kg car with a useful power output of 38.0 hp (1 hp = 746 W)…

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Q: Suzie Lavtaski (m=60 kg) is skiing at Bluebird Mountain. She is moving at 15 m/s across the crest of…

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Q: (a) How long would it take a 1.50×105 -kg airplane with engines that produce 100 MW of power to…

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Q: Part F During this process, how much work is done on the 20.ON block by the normal force? Express…

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Q: Using a cable with tension of 1350 N, a tow truck pulls a car 5.00 km long a horizontal roadway. a)…

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Q: (a) How long would it take a 1.50 × 105 -kg airplane with engines that produce 100 MW of power to…

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Q: Suppose a car travels 108 km at a speed of 25.0 m/s, and uses 1.90 gallons of gasoline. Only 30% of…

A: Given, distance traveled by car, s = 108 kmspeed of the car, v = 25.0 msallons of gasoline used,…

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A: a) The required work done is, b) The required work done by the normal force is,

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A: Answer

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Q: If a group of workers can apply a force of 1000 Newtons to move a crate 20 meters, what amount of…

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Q: A force of 8 N will stretch a rubber band 4 cm (0.04 m). Assuming that Hooke's law applies, how far…

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Q: A 5kg block is pushed up a 40° incline at constant velocity of 3m/s. The force pushing on the block…

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Q: A freight elevator weighs 6200 N. a. What is the power required to raise the elevator a distance of…

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Q: A 10 kg crate is pulled along a rough inclined plane at an initial velocity of 1.5 m / s. The…

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Q: Part A A 32.0 kg crate is initially moving with a velocity that has magnitude 4.50 m/s in a…

A: According to work - energy principle  change in kinetic energy = work note that energy is scalar…

Q: A large cruise ship of mass 6.20 ✕ 107 kg has a speed of 10.4 m/s at some instant. (a) What is the…

A: Given information: The mass of the ship (m) = 6.2 ×107 kg The velocity of the ship (v) = 10.4 m/s

Q: The speed of a crate traveling on a horizontal frictional surface changes from vi=13 m/s to vf=11.5…

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Q: (a) How long would it take a 1.50×105-kg airplane with engines that produce 100 MW of power to reach…

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Q: Part A What minimum horsepower must a motor have to be able to drag a 380 kg box along a level floor…

A: Given : Mass of a box (m) = 380 kg Speed (v) = 1.15 m/s Coefficient of friction (u) = 0.40

Q: Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 2.10 gallons of gasoline. Only 30% of…

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Q: (a) How long (in s) will it take an 855 kg car with a useful power output of 36.0 hp (1 hp = 746 W)…

A: mass of car (m) = 855 kg power (P) = 36 hp final speed (v) = 13 m/s Initial speed (u) = 0 m/s