The circuit below contains three 100-W light bulbs and a capacitor. The emf ? = 110V. At the instant the switch S is closed, which light bulb is brightest?
a.
A
b.
B
c.
C
d.
A and B
e.
All three are equally bright.
c
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A boy releases his 2.0 kg toy, from rest, at the top of a sliding-pond inclined at 20° above the horizontal. What will the toy's speed be after sliding 4.0 m along the sliding-pond? The coefficient of kinetic friction is 0.20
A) 3.0 m/s B) 4.4 m/s C) 2.2 m/s D) 5.2 m/s E) 3.5 m/s
A wave disturbance in which the displacement in the medium is perpendicular to the direction of travel of the wave is a
A. longitudinal wave B. transverse wave
The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III
?
The object’s acceleration is negative in region III.
a.
True
b.
False
Two charged bodies separated by a distance d exert an attractive electrical force on each other. The signs of the charges on the two bodies are __________ and __________
Fill in the blank(s) with correct word