Why were globular clusters so vital to Harlow Shapley's success?
What will be an ideal response?
Globular clusters lie in the Halo, above and below much of the dust that had thrown off earlier attempts to map the Galaxy.
You might also like to view...
The maximum temperature on the Kelvin scale is called ________.
A. gamma temperature B. absolute energy C. the vapor point D. absolute zero E. There is no maximum temperature on the Kelvin scale.
An air-filled capacitor stores a potential energy of 6.00 mJ due to its charge. It is accidentally filled with water in such a way as not to discharge its plates
How much energy does it continue to store after it is filled? (The dielectric constant for water is 78 and for air it is 1.0006.) A) 0.077 mJ B) 468 mJ C) 0.040 mJ D) 6.00 mJ
The kinetic energy of a proton is 80% of its total energy. What is the speed of the proton?
A) 0.02c B) 0.87c C) 0.92c. D) 0.98c E) 1.0c
A resistor and an inductor are connected in series to a battery. The battery is suddenly removed from the circuit. The time constant for of the circuit represents the time required for the current to decrease to
A) 25% of the original value. B) 37% of the original value. C) 50% of the original value. D) 63% of the original value. E) 75% of the original value.