A force of 15.2 N directed along the positive x-axis combines with a second force to produce a total force vector of magnitude 17.9 N. What is the magnitude of the second vector?
A. Not enough information is given.
B. 9.5 N
C. 23.5 N
D. 2.7 N
A. Not enough information is given.
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The rings of Neptune:
A) were confirmed by the Voyager 2 in 1989. B) number five, with three narrow, two more diffuse. C) all lie within Neptune's Roche Limit. D) often appear as clumpy ring arcs, rather than complete and symmetrical. E) All of these are correct.
Which of the following is the most common type of main-sequence star?
A) an O star B) an A star C) an F star D) an M star E) a G star
Force on a Wire: A wire in the shape of an "M" lies in the plane of the paper. It carries a current of 2.0 A, flowing from A to E, as shown in the figure. It is placed in a uniform magnetic field of 0.65 T in the same plane, directed as shown on the right side of the figure. The figure indicates the dimensions of the wire. Note that AB is parallel to DE and to the baseline from which the magnetic field direction is measured. What are the magnitude and direction of the force acting on section BC of this wire?
A. 0 N B. 0.090 N perpendicular out of the page C. 0.090 N perpendicular into the page D. 0.060 N perpendicular out of the page E. None of these
Which of the following best defines the sampling rate?
A. The number of samples obtained per second during the recording process. B. The bit depth of an audio file. C. The amount of background noise in an audio file. D. The speed of playback of an audio file.