Interference colors in a soap bubble is evidence that the soap film
A) has two reflecting surfaces.
B) is thin.
C) both of these
D) neither of these
Answer: C
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A 60. kg person walks along a 100. kg log at the rate of 0.8 m/s (with respect to the log). With what speed does the log move, with respect to the shore?
What will be an ideal response?
Suppose you are in an elevator that is traveling upward at constant speed. How does your weight compare to your normal weight on the ground?
A) It is the same. B) You are weightless. C) It is less. D) It is greater.
As the air cools at night the relative humidity usually __________
Fill in the blank(s) with correct word
A box is sliding down an incline tilted at a 12.0° angle above horizontal. The box is initially sliding down the incline at a speed of 1.50 m/s. The coefficient of kinetic friction between the box and the incline is 0.340
How far does the box slide down the incline before coming to rest? A) 0.920 m B) 2.33 m C) 1.78 m D) 0.720 m E) The box does not stop. It accelerates down the plane.