circular orbit 2290 km above A 2650-kg spacecraft is in the surface of Mars. Part A How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4330 km above the surface? Express your answer to three significant figures. ΠΥΙ ΑΣφ

5 of 18 A 4500 kg spacecraft is in a circular orbit 1500 km above the I Review I Constants surface of Mars (mM = 6.42 x 1023 kg, RM = 3.39 x 10 m). Part A How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4500 km above the surface? Express your answer with the appropriate units. HẢ ? w - 1.49 • 1010 J %3D Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback Next > MacBook Air esc 80 DII DD F1 F2 F3 F4 FS F6 F7 FB F9 F10 F11 F12 @ # $ & * 1 2 3 4 7 9. delete Q W E R T Y 一 P

Four identical masses of 7.3 grams are placed at the corners of a square with a side length of d = 27 cm, as shown below. What is the gravitational potential energy of the system? d d

Question: Three identical 5.6 kg spheres are located at 3 of the 4 corners (top left, top right, and bottom right) of a square whose sides are 2.8 m in length. How much work must be done on the gravitational field produced by the spheres in order to remove the top right sphere (place it at infinity)? Assume that the 2 spheres that are left behind (top left, bottom right) remain located on opposite corners of the square. A) 1.50 x 10-9 J B) 5.34 x 10-10 J C) 1.89 x 10-10 J D) 2.67 x 10-10 J E) 5.29 x 10-10 J OA E B. C.

The figure shows four particles, each of mass 17.5 g, that form a square with an edge length of d = 0.600 m. If d is reduced to 0.150 m, what is the change in the gravitational potential energy of the four-particle system? d d

In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 6.00×1015 kg and a radius of 8.10 km For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Phobos escape velocity. Y Part A What is the speed of a satellite orbiting 4.50 km above the surface? Express your answer with the appropriate units. D Value HA Part B Submit Request Answer What is the escape speed from the asteroid? Express your answer with the appropriate units. Submit μA Value Units Request Answer 200 Units

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A planet with a radius of 6.00 × 107 m has a gravitational field of magnitude 40.2 m/s2 at the surface. What is the escape speed from the planet? ____km/s

A.determine the work done by the force on the particle with the appropriate units. B.what is the angle between the force and the particles displacement.

You are given two point-like objects, known as M1 & M2. M1 has four times the mass of M2 and they are placed at a distance of d apart from each other.  A. Can you sketch (in 2-dimensions) the gravitational field lines that are present in the region of space around the two masses. Show the direction of the field on the field lines.  B. Explain quantitatively where you should place a test particle such that it experiences a net gravitational force of zero from the two point-like objects. Indicated this position on your diagram.