___________ in other galaxies should contain luminous O and B stars if they are like the Milky Way

a. The halos
b. The bulges
c. The spiral arms
d. The globular clusters
e. The coronas

c

Physics & Space Science

You might also like to view...

The planetary model of the atom was fundamentally flawed. It failed theoretically because

A. a perfectly circular orbit would violate the laws of gravitation. B. electrostatic attraction would not be sufficient to keep the electron/nucleus in a bound state. C. it predicted positive and negative charge equally distributed throughout the atom. D. it was well established experimentally that accelerating electrons emit electromagnetic radiation. E. it did not provide for the existence of neutrons.

View
Physics & Space Science

A(n) ___________ is a set of beliefs that appears to be based on scientific ideas, but which fails to obey the most basic rules of science

a. theory b. hypothesis c. pseudoscience d. allegory e. scientific model

View
Physics & Space Science

A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the acceleration of the car has components of 2.4 m/s2 east and 1.8 m/s2 south. What is the radius of the circle?

a. 0.24 km b. 0.19 km c. 0.32 km d. 0.14 km e. 0.27 km

View
Physics & Space Science

An object that is initially at rest breaks up into two pieces of unequal masses when a spring-loaded device is released

If you compare the kinetic energy of the larger mass to that of the smaller mass immediately after they separate, which of the following statements is correct? A) The kinetic energy of the larger mass is greater. B) The kinetic energy of the smaller mass is greater. C) The kinetic energies of the two masses are equal. D) The total kinetic energy is zero J.

View
Physics & Space Science