At t = 0, a particle is located at x = 25 m and has a velocity of 15 m/s in the positive x direction. The acceleration of the particle varies with time as shown in the diagram. What is the position of the particle at t = 5.0 s?
a.
175 m
b.
125 m
c.
138 m
d.
154 m
e.
165 m
d
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Resistance and Resistivity: Which one of the following quantities is equivalent to 1 ??
A. 1 J/s B. 1 W/A C. 1 V ? A D. 1 V/A E. 1 A ? s
In a location where the train tracks run parallel to a road, a high speed train traveling at 60 m/s passes a car traveling at 30 m/s. How long does it take for the train to be 180 m ahead of the car?
A. 2.0 s B. 3.0 s C. 6.0 s D. 9.0 s E. 18.0 s
The image formed by a candle located outside the focal point of a converging lens is real, inverted, and may be magnified or reduced in size, as shown. How could you experimentally distinguish between a real and a virtual image?
a. A real image will be projected on a piece of paper placed at the position of the image. b. A virtual image will be projected on a piece of paper located at the position of the image. c. One cannot distinguish between the two; both a. and b. are correct. d. One cannot distinguish between the two; both a. and b. are incorrect.
Wave amplitude is related to
a. wave velocity. b. frequency. c. energy. d. wavelength.