A gravitationally bound universe, with omega greater than 1.0, will expand forever
Indicate whether the statement is true or false
FALSE
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How is radioactive dating used to determine the age of an object?
a. Both the amounts of radioactive and decay material are measured. Using these with the radioactive material's half-life, the age can be estimated. b. The amount of radioactive material is measured. Using this with the radioactive material's half-life, the age can be estimated. c. The amount of decay material is measured. Using this with the radioactive material's half-life, the age can be estimated. d. The amount of heat generated by radioactive dating is measured to determine age.
Which of the following would not be considered evidence for dark matter in clusters of galaxies?
A) the total amount of stars B) the temperature of the intergalactic gas C) the velocities and radii of galaxy orbits around the center of mass in the cluster D) the curvature of gravitationally-lensed galaxies
Newton found that when light passed through a prism, it was dispersed into the component colors. Which bent the least, and why?
What will be an ideal response?
Size of the Nucleus: If an atomic nucleus containing 64 nucleons has a radius R, what will be the expected radius of a nucleus containing 512 nucleons?
A. R B. 2R C. 4R D. 8R E. 16R