Which of these is NOT a function of a calendar?
A. Be useful to a large number of people for communication regarding dates.
B. Use natural time intervals such as those defined by the Moon.
C. Be able to accurately predict when an asteroid will strike the Earth.
D. Keeps track of time over long periods.
Be able to accurately predict when an asteroid will strike the Earth.
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Thin Lenses: A 14-mm tall postage stamp is 4.0 mm from a converging lens. If the image of the stamp is 4.0 mm tall, how far is it from the lens?
A. 14 mm B. 8.7 mm C. 1.4 mm D. 1.1 mm
Two projectiles are fired from ground level at equal speeds but different angles. One is fired at an angle of 30° and the other at 60°. Neglecting air resistance, the projectile to hit the ground first will be the one fired at
A) 30°. B) 60°. C) both hit at the same time
Why is Galileo Regio, the large circular feature on Ganymede, so dark?
A) It is composed of dense basaltic mantle rock that once flowed like lunar mare. B) It is the result of micrometeorite dust settling onto it over several billion years. C) It has an asphalt-like material that is like the dark side of Iapetus of Saturn. D) It is the result of ultraviolet light from the Sun interacting with the ice and creating a substance that is quite dark. E) It is the site of a recent meteorite impact that scattered a lot of dark, rocky material.
The definition of "life" requires only that an entity be able to reproduce itself
Indicate whether the statement is true or false