A circular orbit would have an eccentricity of
A) 0.
B) between 0 and 0.5.
C) between 0.5 and 1.
D) exactly 1.0.
E) infinity.
A
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On which planet does plate tectonics take place?
A. Venus B. Mars C. Mercury D. Earth
An aluminum beam (E 5 72 GPa) with a square cross section and span length L 5 2.5 m is subjected to uniform load q 5 1.5 kN/m. The allowable bending stress is 60 MPa. The maximum deflection of the beam is approximately:
(A) 10 mm
(B) 16 mm
(C) 22 mm
(D) 26 mm
Despite being only a medium-size moon, Enceladus may have subsurface habitable zones
Indicate whether the statement is true or false
A 0.30-kg mass is suspended on a spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Write down its equation of motion
A) y = (0.01 m) cos (22.1 t) B) y = (0.01 m) sin (22.1 t) C) y = (0.03 m) cos (22.1 t) D) y = (0.03 m) sin (22.1 t)