all T-Mobile * 56% 5:48 PM webassign.net PROBLEM A charged particle enters the m

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all T-Mobile * 56% 5:48 PM webassign.net PROBLEM A charged particle enters the magnetic field of a mass spectrometer at a speed of 1.79 x 106 m/s. It subsequently moves in a circular orbit with a radius of 16.0 cm in a uniform magnetic field of magnitude 0.350 T having a direction perpendicular to the particle's velocity. Find the particle's mass- to-charge ratio and use the table to identify it. STRATEGY After finding the mass-to-charge ratio, compare it with the values in the table, identifying the particle. Write the cyclotron equation. Solve this equation for the mass divided by the charge, m/, and substitute values -·-·(0.160 m)0.350 T). 3.13 x 10.yc 106 m/s 1.79 identify the particle from the table. AlParticle k)C)e kc) particles are completely lonized Hydrogen 1.67x10-27 1.60×1019 1.04 108 Deuterium 3.35 x10 160 x101 2.09 x 10 Tritinium 5.01 x101.60x10 3.13 x 10 Helium- 3 5.01 x1027 3.20 x 10-19 1.57 x 10 The particle is tritium. LEARN MORE REMARKS The mass spectrometer is an important tool in both chemistry and physics. Unknown chemicals can be heated and ionized, and the resulting particles passed through the mass spectrometer and subsequently identified QUESTION What happens to the momentum of a charged particle in a uniform magnetic field? (Select all that apply.) O The magnitude of the momentum increases. O The magnitude of the momentum decreases. O The magnitude of the momentum remains unchanged. whether the momentum increases or decreases in magnitude depends on the sign of the charge O The direction of the momentum changes. O The direction of the momentum remains unchanged

Explanation / Answer

A charged particle moves in a circle with constant speed in a constant magnetic field.

For a charged particle in a uniform magnetic field

The magnitude of momentum remains unchanged

The direction of the momentum changes.

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