EBK LOOSE-LEAF VERSION OF UNIVERSE
EBK LOOSE-LEAF VERSION OF UNIVERSE
11th Edition
ISBN: 9781319227975
Author: KAUFMANN
Publisher: VST
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Chapter 12, Problem 54Q
To determine

The speed at which a spacecraft’s rocket motor would have to accelerate the spacecraft to escape Earth’s atmosphere and then return after completing its mission. It is given that this hypothetical spacecraft would float while being suspended from balloons for extended periods of time in Jupiter’s upper atmosphere.

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Problem Twelve. An object consists of four particles: m₁ =1.0kg, m₂ = 2.0kg, m3 = 3.0kg, ma = 4.0kg. They are connected by rigid massless rods to form a rectangle of edge lengths 2a and 2b, where a 7.0 m and b = 8.0 m. The system rotates about the x-axis through the center as shown. = Find the (x, y) coordinate of the center of gravity of the object (in meters). Use the geometrical center of the object as the origin. 2a 13 2b m M2 Axis of rotation 20.) (A) (-3.2, -1.4) (B) (-3.2, 1.4) (C) (5.2, -1.4) (D) (-1.8,-1.4) (E) (3.2,-5.2) Find the moment of inertia of the object about the x-axis and y-axis that run through the geometrical center of the object. Give an answer as (Ix, ly, I) in units of 10² kg-m². 21.) (A) (6.4, 4.9, 11) (D) (9.8, 11, 12.8) (B) (4.9, 6.4, 11) (C) (11, 12.8, 9.8) (E) (2.5, 10, 11) anul babogaus al bos ano 002 maldor If the object is spinning with angular velocity of 30 rpm around the axis of rotation shown in the diagram, find the rotational kinetic energy. Give…
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