Why was the globe rotated westward when positioning the celestial sphere to portray a P.M. (afternoon) local time?
The globe was rotated westward to portray a P.M. local time because the Sun appears
to travel westward across the sky as the day progresses.
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How does a rocket launch upward? Choose the statement that correctly answers the question.
A) By expelling gas downward, the rocket is propelled upward. B) Expelling gas downward, which by pushing against the ground, propels the rocket upward.
Identical 8.0-?C point charges are positioned on the x axis at x = ±1.0 m and released from rest simultaneously. What is the kinetic energy of either of the charges after it has moved 2.0 m?
a. 84 mJ b. 54 mJ c. 96 mJ d. 63 mJ e. 48 mJ
A planetary nebula is an example of a star no longer in hydrostatic equilibrium
a. True b. False Indicate whether the statement is true or false
If the electric field is zero everywhere inside a region of space, the potential must also be zero in that region
A) True B) False