An object of mass 4.0 kg starts at rest from the top of a rough inclined plane of height 10 m as shown in the figure
If the speed of the object at the bottom of the inclined plane is 10 m/s, how much work does friction do on this object as it slides down the incline?
What will be an ideal response?
Answer: -190 J
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What is the direction of the electric field vector 
at point P in the situation shown below? (Assume that the balls are actually point particles with the same magnitudes of charge.)
A. A
B. B
C. C
D. D
E. zero
F. Other
G. AA
H. BB
I. CC
J. DD
What is the equivalent capacitance of the combination shown?
a.
20 ?F
b.
90 ?F
c.
22 ?F
d.
4.6 ?F
e.
67 ?F
Angular and Linear Quantities: A car is traveling along a freeway at 65 mph. What is the linear speed, relative to the highway, of each of the following points on one of its tires?(a) the highest point on the tire(b) the lowest point on a tire(c) the center of the tire
What will be an ideal response?
At night an underwater scuba diver aims a flashlight beam toward the surface at 15° to the normal. Upon emerging into the air, the beam angle will be
A) less than 15°. B) 15°. C) more than 15°. D) impossible to predict.