The youngest stars in the Orion Nebula and other star-forming regions also show
a. circumstellar disks.
b. jets.
c. circumstellar disks and jets.
c
You might also like to view...
A carbon resistor has a resistance of 18 ? at a temperature of 20°C. What is its resistance at a temperature of 120°C? The temperature coefficient of resistivity for carbon is -5.0 × 10-4/C°
A) 16 ? B) 18 ? C) 17 ? D) 15 ?
White light is spread out into spectral hues by a diffraction grating. If the grating has 1 000 lines per cm, at what angle will red light (l = 640 nm) appear in first order?
a. 14.7° b. 7.35° c. 17.7° d. 3.67° e. 1.84°
Like Jupiter's other icy moons, Europa is covered with craters
Indicate whether the statement is true or false
The second step in the precipitation-hardening process is to _________the alloy to maintain a uniform distribution of atoms in the grains at low temperature.
Fill in the blank(s) with the appropriate word(s).