If Saturn takes about 30 years to orbit the Sun, and its rings were seen edge-on in 1995, when did they next appear most open at solstice?

A) 2007 B) 2005 C) 1998 D) 2010 E) 2002


E

Physics & Space Science

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Addition by 1. Components: Vector  has a magnitude of 8.0 m and points 30° north of east; vector  has a magnitude of 6.0 m and points 30° west of north; and vector  has a magnitude of 5.0 m and points 30° west of south. The resultant vector  + -5.0px;" /> +  is given by

A. 2.7 m at an angle 74° north of east.
B. 5.9 m at an angle 74° north of east.
C. 4.8 m at an angle 74° east of north.
D. 5.1 m at an angle 74° north of east.
E. 2.1 m at an angle 66° east of north.

Physics & Space Science

A charge Q is uniformly distributed throughout a nonconducting sphere of radius R. The charge density in the sphere is

What will be an ideal response?

Physics & Space Science

If the average density of matter and energy in the Universe is more than the critical density, space-time will be _____

A) closed B) flat C) open D) infinite

Physics & Space Science

A future astronaut exploring Mars would

A) need to stay inside a spacecraft at all times B) be able to walk on the surface at any time wearing only warm clothing C) need to wear a spacesuit at all times D) need to wear a spacesuit only during the winter

Physics & Space Science