Part A What is the change in potential energy of an energetic 76 kg hiker who makes it from the floor of Death Valley to the top of Mt. Whitney? Express your answer to two significant figures and include the appropriate units.

Q: A 20.0-kg crate sits at rest at the bottom of a 11.5 m-long ramp that is inclined at 35 ° above the…

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Q: A 1250 kg car drives up a hill that is 15.2 m high. During the drive, two nonconservative forces do…

A: Given data: -Mass of the car (m)=1250 kgThe work done by fraction (Wf)=−2.91∗105 JThe work done by…

Q: Hint 1 A small block of mass 246 g starts at rest at A, slides to B where its speed is vg = 5.4 m/s,…

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Q: Use the work-energy theorem to find its maximum height. Express your answer with the appropriate…

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Q: An ideal spring stores potential energy Uo when it is compressed a distance xo from its uncompressed…

A: The potential energy stored in an ideal spring is denoted by U0  when the compression in the spring…

Q: An object of mass m=1kg moving along the x-axis passes through the point x = 0 with a speed of 2…

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Q: What quantities can you find from a graph of Fx vs. x, the x component of the spring force versus…

A: The force exerted by spring to oppose the elongation or compression of spring is known as spring…

Q: An ideal spring of negligible mass is 13.00 cm long when nothing is attached to it. When you hang a…

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Q: A 1400-NN crate rests on the floor.     Part A How much work is required to move it at constant…

A: Write the given values of this problem. frictional force(f)=310 NDistance(d)=5 mm or 5×10-3 m

Q: In the high jump, the kinetic energy of an athlete is transformed into gravitational potential…

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Q: A 35.0 kg crate is initially moving with a velocity that magnitude 4.50 m/s in a direction 37.0°…

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Q: A base jumper (80 kg) jumps off a cliff from an initial height of 1000 meters. They open their

A: Given: Mass of the person is m=80 kg Initial height of the person is h1=1000 m The height where the…

Q: A student builds a roller coaster as shown. The heights of the points are A= 4 m B= 0.8 m C= 0 m.…

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Q: At the local ski slope, an 65.0-kg skier rides a gondola to the top of the mountain. Part A If the…

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Q: A 74.8-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…

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Q: A 18,000 kg aircraft is lifted to a height of 12 m. How much potential energy does the aircraft…

A: Given that-Mass of the aircraft, m= 18000 kgHeight, h= 12 mPower,P= 15000 WattWe know that-Potential…

Q: The world's fastest humans can reach speeds of about 11 m/s. n order to increase his gravitational…

A: The world's fastest humans can reach speeds of about 11 m/s. So speed of humans , v=11 m/s Find: -…

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

A: The formula of kinetic energy is  K = 0.5 mv2  The formula of the potential energy is  U =  m g h…

Q: (Figure 1) shows your 1.5 kg laptop computer being dragged up a 25° slope at steady speed by a rope…

A: The objective of the question is to define the system for a problem involving thermal energy and to…

Q: In the attached picture, the mass is 3.20 kg, and  = 37 degrees. The surface does have friction,…

A: Given:Mass of the block = 3.20 kgDisplacement = 3.8 mTension = 23 NKinetic friction coefficient =…

Q: An ideal spring of negligible mass is 12.00 cm long when nothing is attached to it. When you hang a…

A: Force, F = mg = kx 3.95 x 9.8 = k x (0.135m- 0.12m) k=2580.67 N/m

Q: A 1400-N crate rests on the floor.     Part A How much work is required to move it at constant speed…

A: Given  Distance travelled is d=5.0  m Frictional force is f=310 N Acceleration of the crate is a=0…

Q: Part A How should you define the system for a problem involving thermal energy? Select everything…

A: The laptop and the surface define the system for  a problem involving the thermal energy.

Q: ▼ Part A with a force of 1.2 mN. W = What is the work done by the muscle fiber as it contracts to a…

A: Given F = 1.2 mN   = 1.2 × 10-3 N Muscle fiber contracts from 2 cm to 1.6 cm length∆ L = 2 cm - 1.6…

Q: In the high jump, the kinetic energy of an athlete is transformed into gravitational potential…

A: According to the law of conservation of energy the total initial energy is equal to the total final…

Q: Part A How much work must you do to push a 10 kg block of steel across a steel table at a steady…

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Q: An ideal spring of negligible mass is 11.00 cm long when nothing is attached to it. When you hang a…

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Q: a skater moving at 3.0 m/s encounters a rough patch that reduces her speed by 45% due to a friction…

A: Initial speed of the person is u=3 m/s Final speed on rough patch is v=45% of u Friction force is…

Q: Part A A system in which only one particle can move has the potential energy shown in (Figure 1).…

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Q: a.Ladders must be positioned at a safe angle to avoid potential fall hazards when climbing. An ideal…

A: When a ladder is leaned against a wall, the bottom of the ladder should be one fourth of the…

Q: As a sailboat sails 55 m due north, a breeze exerts a constant force F₁ on the boat's sails. This…

A: Given Data:- Magnitude of s1→=55 m Magnitude of s2→=44 m Magnitude of two forces are equal.…

Q: A balloon of mass M lifts a small rock of mass m from its resting position on the ground to an…

A: M= mass of the baloonm= mass of the rockFo=upward force exerted by the baloon on the rockH= altitude…

Q: There is a worker that slides a heavy box up a ramp into a truck. The box has a mass of 70 kg.  The…

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Q: With what minimum speed must you toss a 200 gg ball straight up to just touch the 14-mm-high roof of…

A: Mass of ball is m=200 g Initial height of ball is hi=1.1 m Maximum height or final height is h=14 m…

Q: B U(x) = A 6-kg particle moves in a region of space where its potential energy is + with a = -4.9…

A: Given data-  Mass m=6 kg  Potential energy U(x)= (a/x) + (B/x2)             a=-4.9 J.m , B=2.1 J.m2…

Q: A B C A student builds a roller coaster as shown. The heights of the points are A= 2.9 m B= 0.7 m C=…

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Q: You are unloading a refrigerator from a delivery van. The ramp on the van is 5.0 m long, and its top…

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Q: Sgown is the potential-energy diagram for a 20 g particle that is released from rest at x = 1.0 m.a.…

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Q: In the movie Monty Python and the Holy Grail a cow is catapulted from the top of a castle wall over…

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Q: Part B What is the car's speed after coasting down the other side? Express your answer with the…

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Q: In the high jump, the kinetic energy of an athlete is transformed into gravitational potential…

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Q: The maximum height a typical human can jump from a crouched start is about 55.0 cmcm .     Part A By…

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Q: A worker lifts a 20.0-kg bucket of concrete from the ground up to the top of a 30.0-m tall building.…

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Q: A bead is used to demonstrate the inter-conversion of kinetic and potential energies in a model…

A: We have to find which option is not correct Let's check each option one by one for the given…

Q: 2 of A 4.2-g locust reaches a speed of 2.8 m/s during its jump. Part A What is its kinetic energy at…

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Q: Truck brakes can fail if they get too hot. In some mountainous areas, ramps of loose gravel are…

A: mass ,m = 15000 kgslope, coefficient of friction is   Initial speed , u = 38 m/s

Q: A 50-g mass on the end of a spring at its equilibrium position is stretched a distance of 5.00 cm…

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