Observationally contrast the discoveries of most comets and asteroids
What will be an ideal response?
Comets are typically first noted as the Sun's heat drives off gases, forming their coma and making them look fuzzy. Their cometary nature is then confirmed by observations of their orbital motion. Asteroids look like "little stars," and thus must be found via their motion, either with them appearing as streaks on the time exposures, or analysis of digital images over time.
You might also like to view...
A metal having a work function of 2.8 eV is illuminated with monochromatic light whose photon energy is 3.9 eV. What is the threshold frequency for photoelectron production? (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A) 6.8 × 1014 Hz B) 2.7 × 1014 Hz C) 7.6 × 1014 Hz D) 8.5 × 1014 Hz E) 9.4 × 1014 Hz
When relating the linear momentum and total energy of an object with speed v = 0.8c, which of the following changes would increase the energy by the greatest amount? Assume that it is possible to change the mass of the object
A series circuit consists of three identical lamps connected to a battery as shown in Figure OQ28.15. The switch S, originally open, is closed. What happens to the brightness of lamp C?
What is the relationship between the image distance and the object distance for a plane (flat) mirror?
A. They are not related B. The image distance is double the object distance C. The image distance is half the object distance D. They are the same.