A ball traveling from point A to point E on the surface of the Earth follows the trajectory shown in the figure. B D E What is the speed at point C (top of the arc) compared with that at point A (just after launch)?

Q: What is the gravitational potential energy, in joules, of the ball before it is released?

A: What is the gravitational potential energy, in joules, of the ball before it is released?

Q: flywheel

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Q: A mobile that weighs 28 N is hanging 2 m below a ceiling that is 5 m high. What is its potential…

A: Given data:  Weight of mobile (mg) = 28 N Height of ceiling = 5 m Mobile is hanging 2 below the…

Q: Suppose the pendulum bob in the figure(Figure 1) has a mass of 0.35 kg and is moving to the right at…

A: Step 1: Given: 1. mass of bob (m) = 0.35kg 2. Velocity o bob at point B( vB ) = 2.7 m/s 3. θ = 35o…

Q: circular orbit 2290 km above A 2650-kg spacecraft is in the surface of Mars. Part A How much work…

A: Given data: Mass of the spacecraft, m=2650 kg Height of the spacecraft above the surface of mars,…

Q: A satelite is in geostationary orbit. How much energy is required to move it to a circular orbit…

A: Given  Period of new orbit T' = 8 days Known Values Geo stationary orbit radius r = 4.2 x 107 m the…

Q: What is the escape speed from the surface of Earth? Assume there is no energy loss from air…

A: The escape speed you provided (1.12 x 104 m/s, which is equivalent to 11.2 km/s) is correct for…

Q: A spacecraft with a mass of 5000kg is in circular orbit 2000km above the surface of mars. How much…

A: This is a problem from Central forces.  The total energy a satellite has in a circular orbit is…

Q: In the figure below, a frictionless roller coaster crosses the first hill of height h = 55.5 m with…

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Q: 6 cm 30 nC 2 cm B

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Q: A football weighing 5 N is dropped from a height of 4.1 m above the ground. What is the kinetic…

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Q: For a satellite in a circular orbit around the earth, the gravitational force from the earth on the…

A: Gravitational potential energy: Gravitational potential energy of a body at a point is defined as…

Q: 4. A very large cat sits at the center of a swing. Two scales are attached to the ropes. One scale…

A: This question can be solved using the concept of mechanical equilibrium. According to which the sum…

Q: Sanic the hedgehog is running after Dr. Eggmon with a speed, v. In order to catch up to Dr. Eggmon,…

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Q: A person hikes to the top of Mount Everest, which is 9km at its peak. If the person is 60kg, what is…

A: Given data The Height of the peak is h = 9 km. The mass of the person is m = 60 kg. The…

Q: Consider two balls thrown separately from the top of a 50 m tall cliff. Ball 1 is thrown straight up…

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Q: A) Suppose you are holding a book of mass m and you carry it across the room at a constant height h…

A: (A) In this case, a book has mass m and it is carried across the room at a constant height h above…

Q: One newly discovered light particle has a mass of m and property q. Suppose it moves within the…

A: The energy equation be expressed as,…

Q: Jupiter orbits the Sun at a radius of about 7.8×108 km.7.8×108 km. At this distance the force of…

A: Given :  Radius of orbit of Jupiter , R = 7.8×108 km Force on the Jupiter due to Sun, F = 4.2×1023 N…

Q: ICM = M2R2 %3D so that the final speed is VCM, hollow V g(h, - h) = v (9.80 m/s2)(14 m - 3 m) = m/s.…

A: The solution of this problem is as follows,

Q: A ball is released from rest at position 1. The diagram shows the ball in four positions as it rolls…

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Q: iff the ball is released what will be its speed at the lowest point of its path? b) a peg is located…

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Q: A ball has 17J of kinetic energy and its mechanical energy is 25J. a.) Find the gravitational…

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Q: A child on a swing has a speed of 7.7 m/s at the low point of the arc. How high will the swing be at…

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.