You have a spring with a spring constant 3240 N/m. ou want to store 255 J of energy in this spring, should you compress it or stretch it? oice : stretch it. a be done.

Q: The graphic above indicates multiple points along the path of a roller-coaster car. At each point…

A: Given data: A roller coaster is along the given path ABCD. We need to find what type of energy does…

Q: Part A A 20.0 kg child plays on a swing having support ropes that are 2.00 m long. A friend pulls…

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Q: Part A An "energy bar" contains 19 g of carbohydrates. For the steps and strategies involved in…

A: Given, The mass of the bar is m=19 g The mass of a person is M=68 kg The speed of a person is v=5.0…

Q: Part A Scallops use muscles to close their shells. Opening the shell is another story--muscles can…

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Q: Part A A system loses 680 J of potential energy. In the process, it does 450 J of work on the…

A: Given: loss in potential energy = 680 J work done on environment = 450 J increase in thermal energy…

Q: Constants | Periodic Table Suppose you lift a suitcase from the floor to a table. The work you do on…

A: Suit case has been lifted from the floor to the table

Q: A 75 kgkg student walks up three flights of stairs, a vertical height of about 50 ftft.     Part A…

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Q: How much work must you do to push a 12.0 kgkg block of steel across a steel table (μkμk = 0.60) at a…

A: mass of block of steel (m) = 12 kg coefficient of friction = 0.60 steady speed (v) = 1.2 mstime…

Q: The elastic energy stored in your tendons can contribute up to 35% of your energy needs when…

A: NOTE: both parts are same.Concept of elastic potFential energy in springs:The elastic potential…

Q: Which of the following most accurately describes the block-track system? Choose 1 answer: A B D The…

A: Solution: The potential of the system at A converts to kinetic energy of the system when block…

Q: Problem 4: A box m = 67 kg is being pulled by a constant force F = 178 N at an angle of 0 = 28…

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Q: work done by this force.

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Q: On an essentially frictionless, horizontal ice rink, a skater moving at 5.0 m/s encounters a rough…

A: Given  Initial velocity, U = 5.0 m/s  Final velocity, V = reduced by 40% of U

Q: A 2000 kg car traveling at a speed of 16 m/s skids to a halt on wet concrete where k = 0.30. For the…

A: Mass of the car, Initial speed of the car, Final speed of the car, Coefficient of kinetic friction,

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: A stretched spring stores 4.8 J of energy. Part A How much energy will be stored if the spring is…

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Q: Catching a wave, a 77-kg surfer starts with a speed of 1.0 m/s, drops through a height of 1.50 m ,…

A: To solve the problem we will use the work-energy principle. If ∆E is the change in total energy of…

Q: Part A The lowest point in Death Valley is 85 m below sea level. The summit of nearby Mt. Whitney…

A: If the height of an object with mass 'm' is changed by 'h', then the change in the gravitational…

Q: A wind turbine works by slowing the air that passes its blades and converting much of the extracted…

A: The mass of the air that moves the blades every second is m=92000 kg.The velocity of the air is v=12…

Q: Part A A typical wind turbine extracts 40% of the kinetic energy of the wind that blows through the…

A: mass= m = 120,000 kg velocity = V = 16 m/s

Q: 12. What is the potential energy of a 3kg ball that is on the ground?

A: Given Mass of the ball is m=3 kg Height of the ball at the ground is y0=0

Q: Work: Find the net work done by friction on a box that moves in a complete circle of radius 1.82 m…

A: Given data The radius is given as r = 1.82 m. The coefficient of kinetic friction is given as…

Q: 14.0 kg package in a mail-sorting room slides 3.00 m down a chute that is inclined at 55∘ below the…

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Q: Directions: Fill out everything for each problem. Write neatly! 1) A unicorn suddenly ran through…

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Q: d. The rod moves 3.0 m/s to the right because an external agent is exerting a constant force on it…

A: Speed of metal rod, v=3 m/sMagnetic field, B=0.75 TResistance, R=5 ΩLength of rod, L=4 cm=0.04…

Q: What is the maximum kinetic energy of a bowling ball with a mass of 6.1 kg, dropped from the 116m…

A: Maximum kinetic energy of ball will be just before the ball hits the ground, as at that time speed…

Q: kinetic energy?

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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: Analyze the following situation. A student chooses the following energy bar charts to represent the…

A: Given: We have to find which one of the charts given is wrong.

Q: not accept any assignments via email after the due Problem: An applied force of 20 N accelerates a…

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Q: Part A The two ropes seen in (Figure 1) are used to lower a 255 kg piano 6.30 m from a second-story…

A: mass of piano (m) = 255 kg distance by which the piano is lowered (d) = 6.30 m T1 = 1830 N T2 = 1295…

Q: Three different objects, all with different masses, are initially at rest at the bottom of a set of…

A: height of each step = d m1 = 4.6 m m2 = 1.71 m m3 = m

Q: A. If a roller coaster has a total of 6632 Joules of energy at the top of a hill, then at the bottom…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: Problem 7: A crate of mass m is initially at rest at the highest point of an inclined plane, which…

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Q: SITUATION 5: The mass of you riding a bicycle is equal to 80kg. When you reach the base of a bridge,…

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Q: Practice An elevator is lifted vertically upwards at a constant speed. Is the net work done on the…

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Q: A force of 570 N keeps a certain ideal spring stretched a distance of 0.900 m. Part A What is the…

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Q: Part A A ski tow operates on a slope of angle 15.8° of length 260 m. The rope moves at a speed of…

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Q: None

A: Step 1:Step 2:Step 3:

Q: I need help with this question

A: Additional work require to done  is equal to change in potential energy i.e Work (W) =PE(final)…