What factors contribute to improving the stability of an object?
A. None these improve stability
B. Lower center of gravity alone
C. Wider base alone
D. Wider base and lower center of gravity
Ans: D. Wider base and lower center of gravity
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An accepted value of KIc is obtained from a fracture test where the fracture surface is _________ to the tensile loading direction.
Fill in the blank(s) with the appropriate word(s).
Simple Harmonic Motion: The equation of motion of a particle undergoing simple harmonic motion in the y direction is y = (2.0 cm) sin(0.60 s-1 t). At time t = 0.60 s determine the particle's (a) position, (b) velocity, and (c) acceleration.
What will be an ideal response?
A circular loop of radius 0.10 m is rotating in a uniform external magnetic field of 0.20 T. Find the magnetic flux through the loop due to the external field when the plane of the loop and the magnetic field vector are
(a) parallel. (b) perpendicular. (c) at an angle of 30° with each other.
Suppose that the speed of an electron traveling 2000 m/s is known to an accuracy of 1 part in 105 (i.e., within 0.001%). What is the greatest possible accuracy within which we can determine the position of this electron?
A) 2.9 mm B) 5.8 mm C) 8.7 mm D) 1.2 cm E) 1.6 cm