Which of the beams is due to a positively charged helium nucleus?

A) a
B) b
C) c
D) all of the above
E) none of the above


Answer: C

Physics & Space Science

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Astronomers expect that stars with multiple planets orbiting them are rare

Indicate whether the statement is true or false

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The spacing of the surface planes of a crystal is 159 pm. A beam directed normally at the surface of the crystal undergoes first order diffraction at an angle of 58° from the normal. The diffraction is done with a beam of monoenergetic neutrons

The energy of the neutrons is closest to: A) 0.045 eV B) 0.039 eV C) 0.050 eV D) 0.056 eV E) 0.061 eV

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A series RLC circuit contains a 20.0-V resistor, a 0.750-mF capacitor, and a 120-mH inductor. If a sinusoidally varying rms voltage of 120 V at f = 500 Hz is applied across this combination of elements, what is the rms current in the circuit?

1.2.33 A 2.6.00 A 3.10.0 A 4.17.0 A 5.none of those answers

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