Ohm's Law: A light bulb operating at 110 V draws 1.40 A of current. What is its resistance?
A. 12.7 ?
B. 78.6 ?
C. 109 ?
D. 154 ?
Answer: B
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A rocket is launched from the origin with an acceleration of 20.0 
at an angle of 30.0 degrees above the horizontal. The launch acceleration lasts for 2.00 seconds at which time the fuel is exhausted. The rocket then falls with an acceleration of 9.80 
downward. What is the X distance (range) when the rocket hits the ground?
A. 153 m B. 166 m C. 187 m D. 205 m E. 230 m
Imagine we have an adjustable slit that we can make wider or narrower. If we shine light of a fixed intensity on the slit, and then crank the slit so its width decreases (while keeping other things the same), will the light at the center of the central peak on the display screen (A) remain the same, (B) get brighter, or (D) get dimmer?
A. Remain the same B. Get brighter D. Get dimmer
In what geometric way can we determine the absolute distances to the planets?
What will be an ideal response?
If the sum of the external torques on an object is zero, then the sum of the external forces on it must also be zero
A) True B) False