At what two celestial locations do the celestial equator and ecliptic coincide?
a. winter solstice and summer solstice
b. vernal equinox and autumnal equinox
c. They coincide at all points because they are the same.
d. north celestial pole and south celestial pole
e. zenith and east point
b
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A rock that weighs 100 lb on Earth is taken to the Moon. Which of the following statements accurately describes what would be observed?
A. The rock is easier to lift because its weight is less on the moon B. The rock is more difficult to lift because the Moon's radius is less than Earth's C. The rock is just as difficult to lift on the Moon as it is on Earth because its mass hasn't changed D. The rock is easier to lift because its mass is less on the moon
The direction of a magnetic field at a point can be determined by a compass
a. True b. False Indicate whether the statement is true or false
On a computer, a megabyte of memory is ______________ bytes
Fill in the blank(s) with correct word
If a circle has a radius of 1.109 m, what is its area expressed to the correct number of significant figures?
A) 3.86 m2 B) 3.863 m2 C) 3.864 m2 D) 3.8638 m2 E) 3.86379 m2