How would the geometry of a universe with ?o greater than 1 differ from one with ?o less than 1?
What will be an ideal response?
If ?o is greater than 1, the geometry of space is positive and could be likened to the surface of a sphere. If ?o is less than 1, the geometry is negative and space is saddle-shaped.
You might also like to view...
A string with a mass per length of 2.00 g/m is stretched between two points that are 0.400 m apart. The third mode frequency of the stretched string is 120 Hz higher than the fundamental mode frequency. What is the tension in the string?
A. 75.0 N B. 96.0 N C. 101 N D. 120 N E. 134 N
The thermoplastic polymer with the highest melting point is _________.
Fill in the blank(s) with the appropriate word(s).
The acceleration of a rocket increases as it travels upward from the ground mainly because
A) gravity becomes weaker with increased distance. B) the applied force on the rocket increases as fuel is burned. C) the mass of the rocket decreases as fuel is burned.
A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. For the next loading, the spring is compressed a distance d/2. How much faster does the second dart leave the gun compared with the first?
1.two times as fast 2.the same 3.half as fast 4.one fourth as fast