What is the steady state rate of heat flow through a pane of glass that is 40.0 cm by 30.0 cm with a thickness of 4.00 mm when the outside temperature of the glass is -10.0°C
and its inside temperature is 25.0°C? The thermal conductivity of glass is 0.105 W/(m?K), the specific heat of glass is 0.180 cal/(g?°C), and 1 cal = 4.190 J.
A) 24.2 W
B) 3.81 W
C) 18.6 W
D) 47.3 W
E) 110 W
E
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Which large jovian moon is thought to have been captured into its present orbit?
A) Callisto B) Titan C) Triton D) Io
A mass (M1 = 5.0 kg) is connected by a light cord to a mass (M2 = 4.0 kg) which slides on a smooth surface, as shown in the figure. The pulley (radius = 0.20 m) rotates about a frictionless axle. The acceleration of M2 is 3.5 m/s2. What is the rotational inertia of the pulley?
?
?
A. 0.29 kg?m2 B. 0.42 kg?m2 C. 0.20 kg?m2 D. 0.62 kg?m2 E. 0.60 kg?m2
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