The farthest planet of our Solar System is ________.
A. Uranus
B. Mars
C. Jupiter
D. Neptune
Answer: D
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Matter Waves: What is the de Broglie wavelength of a ball of mass 200 g moving at 30 m/s? (h = 6.626 × 10-34 J ? s)
A. 1.1 × 10-34 m B. 2.2 × 10-34 m C. 4.5 × 10-28 m D. 6.7 × 10-27 m
Power: A force produces power P by doing work W in a time T. What power will be produced by a force that does six times as much work in half as much time?
A. 12P
B. 6P
C. P
D. 
P
E. 
P
In a 35 mm single lens reflex camera (SLR) the distance from the lens to the film is varied in order to focus on objects at varying distances
Over what range must a lens of 45 mm focal length vary if the camera is to be able to focus on objects ranging in distance from infinity down to 1.4 m from the camera? A) 1.49 mm B) 1.20 mm C) 4.48 mm D) 5.98 mm E) 2.09 mm
When a switch is closed to complete a DC series RL circuit,
A. the electric field in the wires increases to a maximum value. B. the magnetic field outside the wires increases to a maximum value. C. the rate of change of the electric and magnetic fields is greatest at the instant when the switch is closed. D. all of the above are true. E. only (a) and (c) above are true.