On the H-R diagram, lines of constant radius slants down from left to right
Indicate whether the statement is true or false
T
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The observed relativistic length of a super rocket moving by the observer at 0.70c will be what factor times that of the measured rocket length if it were at rest?
a. 0.55 b. 0.71 c. 0.51 d. 1.4 e. 1.8
In a single-slit diffraction experiment, the width of the central maximum is 6.0 mm. The width of the slit is then doubled as is the distance to the screen. What is the resulting width of the central maximum?
a. 12 mm b. 6.0 mm c. 24 mm d. 3.0 mm
A 6.00 kg mass is located at (1.0 m, –2.00 m, 3.00 m), a 5.00 kg mass is located at (1.0 m, 3.00 m, – 2.00 m), and a 4.00 kg mass is located at (–1.0 m, –2.00 m, 2.00 m). The center of gravity of the system of masses is
A. (5/15m, -1/15m, 17/15m). B. (5/15m, -17/15m, 5/15m). C. (12/15m, -5/15m, 16/15m). D. (7/15m, -5/15m, 16/15m). E. (16/15m, -1/15m, 17/15m).
Suppose we had a device that allowed us to see Earth's interior. If we looked at a typical region of the mantle, what would we see happening?
A) Not much: on human time scales, the mantle looks like solid rock. B) hot molten rock rising upward throughout the mantle and cool, solid rock falling downward C) a rapid, up and down churning of the material in the mantle D) dense metals falling downward and low-density rock rising upward