a) What is the frequency (in Hz) of the fundamental note emitted by an open pipe of length 1.5 m? The speed of sound in air is 343 m/s. b) Two positive charges, each 4.18 µC, and a negative charge, –6.36 µC, are fixed at the vertices of an equilateral triangle of side 13.0 cm. Sketch the corresponding diagram, mark the direction of each of the forces acting between the positive and negative charges and the net force acting on the negative charge. Calculate the electrostatic force on the negative charge. Use = 9 x 10º mF-1. 4πεο
a) What is the frequency (in Hz) of the fundamental note emitted by an open pipe of length 1.5 m? The speed of sound in air is 343 m/s. b) Two positive charges, each 4.18 µC, and a negative charge, –6.36 µC, are fixed at the vertices of an equilateral triangle of side 13.0 cm. Sketch the corresponding diagram, mark the direction of each of the forces acting between the positive and negative charges and the net force acting on the negative charge. Calculate the electrostatic force on the negative charge. Use = 9 x 10º mF-1. 4πεο
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Transcribed Image Text:Question B3
a) What is the frequency (in Hz) of the fundamental note emitted by an open pipe of
length 1.5 m? The speed of sound in air is 343 m/s.
b) Two positive charges, each 4.18 µC, and a negative charge, –6.36 µC, are fixed at the
vertices of an equilateral triangle of side 13.0 cm. Sketch the corresponding diagram,
mark the direction of each of the forces acting between the positive and negative
charges and the net force acting on the negative charge. Calculate the electrostatic
1
= 9 × 10º mF-1.
4πεο
force on the negative charge. Use
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