6. (10 pts) Two satellites A and B are launched into Earth orbit. Satellite A has an orbit at an altitude of 200km. Satellite B has an orbit at an altitude of 400km. The radius of the Earth is 6370km. (a) What is the ratio of the potential energy of satellite B to that of satellite A? (b) What is the ratio of the kinetic energy of satellite B to that of satellite A (c) Which satellite has the greater total energy if each has a mass of 100 kg? (d) By how much?
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- 5. A Pendulum has a bob whose mass is 1.0 kg. At either of the highest points of its swing, the bob is 0.10 m higher than it is at the lowest point of its swing. (a) How much more potential energy does the bob have at its highest points than it does at its lowest point? (b) What is the kinetic energy of the bob when it passes through the lowest point of its swing? (c) What is its velocity at that point?lo and Europa are two of Jupiter's moons. lo orbits closer to Jupiter than Europa. Assume that both moons have the same mass. Which statement is true? lo has more kinetic energy, less potential energy, and more mechanical energy (potential plus kinetic) than Europa. lo has more kinetic energy, less potential energy, and less mechanical energy (potential plus kinetic) than Europa. lo and Europa have the same amount of mechanical energy (potential plus kinetic). lo has more kinetic energy, more potential energy, and more mechanical energy (potential plus kinetic) than Europa.A 500 kg communication satellite is to be placed in geostationary orbit around the Earth. a)How high does it have to go to have the same period as the Earth? b)What is the gravitational potential energy of the satellite before going into orbit? c)What is the total energy of the satellite in geostationary orbit? d)What is the work that the rocket must do to place the satellite in geostationary orbit?
- Q10 The planet Saturn has a mass of 5.70 x 1026 kg and a diameter of 139820 km. A satellite in orbit around Saturn has a mass of 400 kg and is in orbit 1600 km above the surface of the planet. What is the gravitational potential energy of the satellite? (A) -1.98 x 10'l J (C) -2.13 x 10l J (B) -2.07 x 10!" j (D) 2.13 x 10"JA person drops a ball from the roof of a building while a second person observes themotion of the ball from the ground. Will the people agree on the value of the gravitational potentialenergy? The change in potential energy? The kinetic energy? Explain your answers in detail pleaseA planet with a radius of 6.00 × 107 m has a gravitational field of magnitude 41.7 m/s2 at the surface. What is the escape speed from the planet?
- 19:49 Sat 14 May * 77% T 20. A satellite in a cireular orbit of radius r around Mars experiences a force of gravity of magnitude F exerted by Mars. The work done by this force on the satellite as it travels halfway around its orbit is Far b) c) Fr d) a) 2Fr Far zeroA 800 kg roller coaster goes over the first hill with a speed of 17.0 m/s. If h = 58 m, determine the change in gravitational potential between A and B. Use g = 10 N/kg.15. A 550-kg satellite projected upward from Earth's surface reaches a maximum height of 6000 km. Find a) its change in gravitational potential energy. b) its initial kinetic energy.
- In deep space, sphere A of mass 30 kg is located at the origin of an x axis and sphere B of mass 10 kg is located on the axis at x = 0.85 m. Sphere B is released from rest while sphere A is held at the origin. (a) What is the gravitational potential energy of the two-sphere system just as B is released? (b) What is the kinetic energy of B when it has moved 0.25 m toward A? Additional Materials eBook Powers of TenAssume that a man lifts 800 kg, the mass of half of the car, and a height of 0.5 m. What is the gravitational potential energy supplied by Wonder Woman when lifting the back of the car? PE= mgh= (800kg)(9.81m/s2)(0.5m)= 3,924 J Calculate the power he exerts when lifting the car over a time interval of 5 seconds. (I just need help with the second half)Calculate the minimum amount of work needed to move a 400 kg rocket from Earth's surface to the International Space Station in orbit 300,000 m above Earths surface. Solve for the minimum amount of work needed to move the payload to the ISS. Start with general equations and explain what you are doing and why you did what you did. Evaluate your solution. Describe how you evaluated your answer and whether or not you think your answer is reasonable.