What is the astronomical significance of 26,000 years?
What will be an ideal response?
The Earth's rotational axis itself rotates over this precession cycle, which also changes the location of the poles, equinoxes, and solstices in the sky.
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Where did the Apollo 11 lunar module land and sample?
a. Taurus–Littrow region b. Taurus–Littrow region c. Mare Tranquillitatis d. Hadley Rille e. Descartes region
The work you do when pushing a shopping cart a given distance while applying twice as much force is
A) half as much. B) twice as much. C) four times as much. D) the same amount.
A bridge is made with segments of concrete 50 m long. If the linear expansion coefficient is 12 × 10^?6 (°C)?1, how much spacing (in cm) is needed to allow for expansion during an extreme temperature change of 150°F?
a. 10 b. 2.5 c. 7.5 d. 5.0 e. 9.5
Absolute zero is the temperature of
A. frozen water B. the Universe C. liquid helium D. nothing