What factors can complicate the collapse of an interstellar cloud into a star?
What will be an ideal response?
The initial spin of the cloud and the conservation of angular momentum result in the cloud flattening into a rapidly rotating disk. For the disk not to fly apart requires a larger mass to produce sufficiently strong gravity to hold the disk together. Magnetic fields can hinder the collapse in a direction perpendicular to the field lines. The ionized gas is tied to the magnetic field and the field is pulled in by the gas. The ionized gas responds more to the magnetic field than it does to gravity.
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When a grating having 5000 lines/cmis illuminated by monochromatic light, the angle between the central maximum and the fourth order maximum is 47.2°. What is the wavelength of the light?
A) 138 nm B) 183 nm C) 367 nm D) 637 nm
Spherical Mirrors: An object that is 2.0 cm tall is placed at the center of curvature in front of a concave mirror. How tall is its image?
A. 0.50 cm B. 1.0 cm C. 1.5 cm D. 2.0 cm E. infinite
Explain what is meant by saying a thermometer measures its own temperature
What will be an ideal response?
As two objects moving toward each other due to gravity get closer, the acceleration of each
A) decreases. B) remains constant. C) increases.