49. A satellite orbits the earth in a circular orbit. Which statement best explains why the satellite doesnot move closer to the center of the earth?a. The gravitational field of the earth does not reach the satellite's orbitb. The earth's gravity keeps the satellite moving with constant velocityc. The satellite is alwaysoving perpendicular to the force due to gravityd. The satellite does not have any weight50. Which conditions is required for a satellite be in a geosynchronous orbit about the earth?a. The period of revolution of the satellite must be the same as the rotational period of the earthb. The altitude of the satellite must be equal to the radius of the earthc. The orbital speed of the satellite around the earth must be the same as the orbital speed of the eartharound the sund. The daily distance traveled by the satellite must be equal to the circumference of the earth

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Answered: 49. A satellite orbits the earth in a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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17. Under static or constant velocity conditions, the wheelchair will tip back- wards if the vertical projection of the combined center of gravity (CG) of the wheelchair and occupant falls behind the point of contact between the rear wheels and the ramp surfaces. As shown in Figure 5.12, the rearward tipover angle (0,) is determined by the horizontal distance (d₁) and the vertical distance (d₂) between CG and the wheelchair's rear axles. a) Using static analysis, derive the equation relating 0,, d₁, and d₂. b) Using the platform approach depicted in Figure 5.7, suggest a method for determining d₁. c) Assuming that d₁ and d₂ averaged 13 cm and 24 cm, respectively, for able-bodied individuals, what would 0, be? d) How would d₁ and d₂ change if the wheelchair occupant leaned forward instead of sitting back against the chair? How would 0, be affected by this postural shift? CG 0₁ T K-d? 30.5cm
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given the figure below determine the velovity in (fps) of block A as it hits the surface B
Course Home lum.ecollege.com/course.html?courseld=17313546&OpenVellumHMAC-1c89e19b153e443490bb4df0da3b2ded#10001 Qt Previous Answers ✓ Correct A mass of 11.3 kg, fastened to the end of an aluminum wire with an unstretched length of 0.47 m, is whirled in a vertical circle with a constant angular speed of 121 rev/min . The cross-sectional area of the wire is 1.6×10¯² cm² Part B Calculate the elongation of the wire when the mass is at the highest point of its path. Express your answer using two significant figures. {—| ΑΣΦ ? AL= 3.0. 10-3 Submit Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining Provide Feedback < Return to Assignment P Pearson Al Q Review | S
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Determine the angle 0 at which a particle in Jupiter's circular orbit experiences an attraction from Jupiter that is 1.39 times the attraction from the sun. Use Table D/2 of Appendix D as needed. Sun Answer: 0 = Jupiter
2. A rigid bar of mass m and length L is released from rest in the horizontal position. What is the rod's angular velocity when it has rotated through 90°? a. √g/3L √3g/L b. C. √12g/L d. √g/L m L
M XCM M A binary system is shown by the image above. It consists of two stars of equal mass. These stars revolve in a circular orbit about thgeir center of mass, which is midway between them. If the orbital speed of each star is 2,280 km/s and the orbital period of each is 11.7 days. Find the mass M of each star.
CHOICES: a. 67.5 deg b. 30 deg c. 45 deg d. 22.5 deg
Problem 3. The system of two blocks, cable, and frictionless pulley is initially at rest. Determine the minimum magnitude of P necessary to cause motion. For this value of P, what is the magnitude of the tension in the cable? Hint: For the top block to move to the right, the bottom block must simultaneously move to the left since they are connected via the cable. 5 kg Hq=0.35 10 kg H = 0.50
An object of mass m1 slides on a sloped block of mass M2, which in turn slides on a horizontal surface. The slope angle is a constant 3, and both masses are initially at rest. There is no friction between any of the objects, and the masses are subject to the force of gravity -mgêy. Use as co- ordinates the horizontal position x2 of mass m2, and the height y1 of mass m1, as shown in the y4 Y1 M2 x2 diagram to the right. Find the equation of motion of block 2, ä2(t). The expression should only include expressions involving constants: M2, m1, g, and B.

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