Two lines and a point are guaranteed to be coplanar if: a. they are near each other. b. they lie in the same plane. c. they never intersect. d. they don't lie in the same plane.

What causes the cyclical changes in the appearance of the moon?

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

Where is the world’s shortest commercial runway?