A mass spectrometer splits a beam of 
and
singly charged ions having the same velocity by passing the beam through a uniform magnetic field. If the radius of the path for the
ions is 12.0 cm, what will be the radius for the
ions?
A. 9.90 cm
B. 10.9 cm
C. 12.0 cm
D. 13.2 cm
E. 14.5 cm
D. 13.2 cm
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Resistance and Resistivity: When a potential difference is applied across a piece of wire made of metal A, a 5.0-mA current flows. If the metal-A wire is replaced with a wire made of metal B having twice the diameter of the metal-A wire, how much current will flow through the metal-B wire? The lengths of both wires are the same, and the voltage difference remains unchanged. The resistivity of metal A is 1.68 × 10-8 ? ? m, and the resistivity of metal B is 1.59 × 10-8 ? ? m.
A. 21 mA B. 19 mA C. 11 mA D. 5.3 mA
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What will be an ideal response?
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What will be an ideal response?
Two speakers in a stereo emit identical pure tones. As you move around in front of the speakers, you hear the sound alternating between loud and zero. This occurs because of diffraction
Indicate whether the statement is true or false