When did there first start to be four separate forces?
A: 10^43 seconds
B: 10^34 seconds
C: 10^12 seconds
D: 1 second
E: 100 seconds
Ans: C: 10^12 seconds
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Refracting Telescope: A simple refracting telescope provides large magnification by employing
A. a short focal length objective and a short focal length eyepiece. B. a short focal length objective and a long focal length eyepiece. C. a long focal length objective and a short focal length eyepiece. D. a long focal length objective and a long focal length eyepiece.
A box is sliding down an incline tilted at a 12.0° angle above horizontal. The box is initially sliding down the incline at a speed of 1.50 m/s. The coefficient of kinetic friction between the box and the incline is 0.340
How far does the box slide down the incline before coming to rest? A) 0.920 m B) 2.33 m C) 1.78 m D) 0.720 m E) The box does not stop. It accelerates down the plane.
Where is most of the water on Mars?
A) in its clouds B) in its polar caps and subsurface ground ice C) frozen on the peaks of its tall volcanoes D) in deep underground deposits E) distributed evenly throughout its atmosphere
"Green manure" is an environmentally friendly way to fertilize fields
What will be an ideal response?