Find the work W done by the "ideal" heat engine.
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Power: A 120-? laboratory resistor is rated at 0.25 W. How much current can safely flow through the resistor?
A. 30 A B. 2.1 mA C. 22 mA D. 46 mA
An 8.00 kg object has a moment of inertia of 1.50 kg 
If a torque of 2.00 N•m is applied to the object, the angular acceleration is
A. 0.750 
B. 1.00
C. 1.33
D. 2.01
E. 2.67
What is true of Jupiter's magnetosphere?
A) Although its surface field is greater, since the planet is larger the total field is actually weaker than Earth's. B) It does not trap protons and electrons, as Earth's Van Allen belts do. C) It has a tail that extends at least to Saturn's orbit. D) It is most extensive on the sunward side of the planet. E) It is only slightly stronger than Saturn's.
Three masses are positioned at the following coordinates: 3.0 kg at (3,2); 4.0 kg at (0,-1); and 5.0 kg at (5,-7). What are the coordinates of the center of mass of the system?
What will be an ideal response?