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I need help understanding this problem. These are the correct answers I just need a break down of how to get them.
Problem Five. A biologist is studying the effects of alpha radiation as it impacts skin cells. Alpha particles are the nuclei of helium atoms (two protons and two neutrons). She uses ionized helium gas (where electrons have been separated from the helium nuclei). The ionized gas is injected into the mass spectrometer shown below. First the gas enters the "velocity selector" chamber on the left where there is a uniform electric field and uniform magnetic field. Here the energy of the alpha particles will be determined by selecting their velocity. After passing through the "velocity selector" chamber, the particles pass through a hole into the "charge/mass selector" chamber where the alpha particles follow the circular trajectory shown and are emitted from point P where they impact the skin cells. Velocity selector E and B₁ present here d (D) 2.04 P Charge/mass selector 17. Alpha particles with a lower velocity than the selected velocity will... (A) hit the wall above the hole (B) hit the wall below the hole (C) move back to the left (D) start moving out of the page (E) start moving into the page B2 present here 15. The biologist would like to use alpha particles that have speed v = 2.12 x 108m/s. The magnetic field B₁ inside the "velocity selector" is 3.00 mT pointing into the page. Find the magnitude of the magnetic force F (in units of 10-¹3 N) on the alpha particles. (A) 4.58 (B) 3.56 (C) 4.32 a (E) 5.56 5 16. What direction must the biologist choose for the electric field E in the "velocity selector" chamber to keep the particles moving in a straight line? (A) Up (B) Down (C) Left (D) Right (E) In
Transcribed Image Text:Problem Five. A biologist is studying the effects of alpha radiation as it impacts skin cells. Alpha particles are the nuclei of helium atoms (two protons and two neutrons). She uses ionized helium gas (where electrons have been separated from the helium nuclei). The ionized gas is injected into the mass spectrometer shown below. First the gas enters the "velocity selector" chamber on the left where there is a uniform electric field and uniform magnetic field. Here the energy of the alpha particles will be determined by selecting their velocity. After passing through the "velocity selector" chamber, the particles pass through a hole into the "charge/mass selector" chamber where the alpha particles follow the circular trajectory shown and are emitted from point P where they impact the skin cells. Velocity selector E and B₁ present here d (D) 2.04 P Charge/mass selector 17. Alpha particles with a lower velocity than the selected velocity will... (A) hit the wall above the hole (B) hit the wall below the hole (C) move back to the left (D) start moving out of the page (E) start moving into the page B2 present here 15. The biologist would like to use alpha particles that have speed v = 2.12 x 108m/s. The magnetic field B₁ inside the "velocity selector" is 3.00 mT pointing into the page. Find the magnitude of the magnetic force F (in units of 10-¹3 N) on the alpha particles. (A) 4.58 (B) 3.56 (C) 4.32 a (E) 5.56 5 16. What direction must the biologist choose for the electric field E in the "velocity selector" chamber to keep the particles moving in a straight line? (A) Up (B) Down (C) Left (D) Right (E) In
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