Charge Q1 = 6.0 nC is at (0.30 m, 0), charge Q2 = -1.0 nC is at (0, 0.10 m), and charge Q3 = 5.0 nC is at (0, 0)
What are the magnitude and direction of the net electrostatic force on the 5.0-nC charge due to the other charges? (k = 1/4??0 = 8.99 × 109 N ? m2/C2)
5.4 × 10-6 N, 56° above -x-axis
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A uniform rod is 3.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest at an angle of 27° above the horizontal. What is the angular speed of the rod as it passes through the horizontal position?
A. 3.0 rad/s B. 2.8 rad/s C. 2.1 rad/s D. 2.5 rad/s E. 3.4 rad/s
An organ pipe open at both ends is 1.5 m long. A second organ pipe that is closed at one end and open at the other is 0.75 m long. The speed of sound in the room is 330 m/s. Which of the following sets of frequencies consists of frequencies which can be produced by both pipes?
a. 110 Hz, 220 Hz, 330 Hz b. 220 Hz, 440 Hz, 660 Hz c. 110 Hz, 330 Hz, 550 Hz d. 330 Hz, 440 Hz, 550 Hz e. 220 Hz, 660 Hz, 1 100 Hz
All of the following occur during metamorphism except
A) melting. B) recrystallization. C) interaction with chemical fluids. D) changes in composition.
Below the Curie temperature barium titanate is ferroelectric, and above the Curie temperature barium titanate is _________.
Fill in the blank(s) with the appropriate word(s).