The ____________________ of the galaxy contains population I stars, open clusters, and gas clouds
Fill in the blank(s) with correct word
disk
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Constant Angular Acceleration: A machinist turns on the power to a grinding wheel at time t = 0 s. The wheel accelerates uniformly from rest for 10 s and reaches the operating angular speed of 38 rad/s. The wheel is run at that angular speed for 30 s and then power is shut off. The wheel slows down uniformly at 2.1 rad/s2 until the wheel stops. In this situation, what is the angular acceleration of the wheel between t = 0 s and t = 10 s?
A. 3.8 rad/s2 B. 4.6 rad/s2 C. 5.3 rad/s2 D. 6.1 rad/s2 E. 6.8 rad/s2
Five moles of an ideal gas expands isothermally at 100°C to five times its initial volume. Find the heat flow into the system.
A. 2.5 × 104 J B. 1.1 × 104 J C. 6.7 × 103 J D. 2.9 × 103 J E. 7.0 × 102 J
Which of the following stars will live longest?
A) 1 solar-mass star B) 2 solar-mass star C) 3 solar-mass star D) 4 solar-mass star
The product of force times parallel distance is called ______________
Fill in the blank(s) with correct word