A protostar develops a bipolar flow of gas when it is still surrounded by an equatorial disk of ________
Fill in the blank(s) with correct word
dust
Physics & Space Science
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Express a body temperature 98.6°F in Celsius degrees
A) 72.6°C B) 45.5°C C) 37.0°C D) 66.6°C
Physics & Space Science
Four resistors are connected across an 8-V DC battery as shown in the figure. The current through the 9-? resistor is closest to
Physics & Space Science
Molecular Rotation: A diatomic quantum mechanical oscillator has a moment of inertia of 7.73 × 10-45 kg ? m2. What is the rotational energy when it is in the quantum state characterized by L = 2? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A. 2.27 × 10-5 eV B. 2.70 × 10-5 eV C. 7.22 × 10-5 eV D. 8.71 × 10-5 eV
Physics & Space Science
A concave mirror has a focal length of 20 cm. What is the magnification if the object's distance is 100 cm?
A. 1/2 B. 1/4 C. ?2 D. 4 E. ?1/4
Physics & Space Science