The Observable Universe: How does the age of the universe (estimated at 14 billion years) introduce the concept of the "observable universe?" Suppose you feel, as do many astronomers, that the universe is much larger than the observable universe
Do you think there is any way to obtain direct evidence for this larger universe?
Will vary.
You might also like to view...
A boy on a bicycle approaches a brick wall as he sounds his horn at a frequency 400 Hz. The sound he hears reflected back from the wall is at a frequency 408 Hz
At what is the speed is the boy riding his bicycle toward the wall? Assume the speed of sound in air is 340 m/s. A) 3.68 m/s B) 333 m/s C) 6.67 m/s D) 6.80 m/s E) 3.37 m/s
What element makes up Io's thin atmosphere?
a. sulfur b. hydrogen c. helium d. carbon dioxide e. methane
A Carnot cycle, operating as a heat engine, consists, in the order given, of
a. an isothermal expansion, an isothermal compression, an adiabatic expansion, and an adiabatic compression. b. an adiabatic expansion, an adiabatic compression, an isothermal expansion, and an isothermal compression. c. an isothermal expansion, an adiabatic compression, an isothermal compression, and an adiabatic expansion. d. an adiabatic compression, an isothermal compression, an isothermal expansion, and an adiabatic expansion. e. an isothermal expansion, an adiabatic expansion, an isothermal compression, and an adiabatic compression.
Two children start at one end of a street, the origin, run to the other end, then head back. On the way back Joan is ahead of Mike. Which statement is correct about the distances run and the displacements from the origin?
A. Joan has run a greater distance and her displacement is greater than Mike's. B. Mike has run a greater distance and his displacement is greater than Joan's. C. Joan has run a greater distance, but her displacement is less than Mike's. D. Mike has run a greater distance, but his displacement is less than Joan's. E. Mike has run a shorter distance, and his displacement is less than Joan's.