Consider a compass with a square magnet placed in a uniform electric field, as shown below. If the magnet is free to pivot around an axis pointing toward the viewer that goes through the point at the magnet’s center, which way will it turn (if it does) in this field?
A. Clockwise, to align itself with the field.
B. Counter clockwise, to align itself with the field.
C. 180° either clockwise or counter clockwise.
D. It won’t turn, as it is already aligned with the field.
E. It won’t turn, because the field wants to twist it around a different axis altogether.
F. It won’t turn because it is not affected by this field.
F. It won’t turn because it is not affected by this field.
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A. speed up. B. slow down. C. spin at the same rate.
A fancy sports car passes Big Ben at a speed of 0.600 c. What time interval will the driver measure for a one-second interval on the large clock?
a. 1.67 s b. 0.800 s c. 1.25 s d. 0.600 s e. 1.00 s
An elastomeric bearing pad is subjected to a shear force V during a static loading test. The pad has dimensions a 5 150 mm and b 5 225 mm, and thickness t 5 55 mm. The lateral displacement of the top plate with respect to the bottom plate is 14 mm under a load P 5 16 kN. The shear modulus of elasticity G of the elastomer is approximately:
(A) 1.0 MPa
(B) 1.5 MPa
(C) 1.7 MPa
(D) 1.9 MPa
When it is noon in Toledo, about what time is it in Perth, Australia?
What will be an ideal response?