Question

Notify Me Bookmark

To study the properties of various particles, you can accelerate the particles with electric fields. A positron is a particle with the same mass as an electron but the opposite charge (+e). If a positron is accelerated by a constant electric field of magnitude 312 N/C, find the following. (a) Find the acceleration of the positron. m/s2 (b) Find the positron's speed after 7.55×10−9 s. Assume that the positron started from rest. m/s

To study the properties of various particles, you can accelerate the particles with electric fields. A positron is a particle with the same mass as an electron but the opposite charge (+e). If a positron is accelerated by a constant electric field of magnitude 312 N/C, find the following. (a) Find the acceleration of the positron. m/s2 (b) Find the positron's speed after 7.55×10−9 s. Assume that the positron started from rest. m/s

Image text
To study the properties of various particles, you can accelerate the particles with electric fields. A positron is a particle with the same mass as an electron but the opposite charge (+e). If a positron is accelerated by a constant electric field of magnitude 312 N / C , find the following. (a) Find the acceleration of the positron. ◻ m / s 2 (b) Find the positron's speed after 7.55 × 10 − 9 s . Assume that the positron started from rest. ◻ m / s

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

Field and force with three charges At a particular moment, one negative and two positive charges are located as shown in the figure. Your answers to each part of this problem should be vectors. It helps a great deal to make a diagram with arrows representing the various electric field contributions, and then check the signs of your components against these arrows. Let Q1 = 1 μC, Q2 = 7 μC, and Q3 = −5 μC. (a) Find the electric field at the location of Q1, due to Q2 and Q3. E→ = N/C (b) Use the electric field you calculated in part (a) to find the force on Q1. F→ = N (c) Find the electric field at location A, due to all three charges. E→ = N/C (d) An alpha particle (He2+, containing two protons and two neutrons) is released from rest at location A. Use your answer from part (c) to determine the initial acceleration of the alpha particle. (Use 6.646×10−27 kg for the mass of He2+.) a→ = m/s2
Solution
0 0

Field and force with three charges At a particular moment, one negative and two positive charges are located as shown in the figure. Your answers to each part of this problem should be vectors. It helps a great deal to make a diagram with arrows representing the various electric field contributions, and then check the signs of your components against these arrows. Let Q1 = 2 μC, Q2 = 8 μC, and Q3 = −5 μC. (a) Find the electric field at the location of Q1, due to Q2 and Q3. E→ = < > N/C Save for Later Attempts: 4 of 10 used Submit Answer Part 2 (b) Use the electric field you calculated in part (a) to find the force on Q1. F→ = < > N Save for Later Attempts: 0 of 10 used Submit Answer Part 3 (c) Find the electric field at location A, due to all three charges. E→ = < > N/C Save for Later Attempts: 0 of 10 used Submit Answer Part 4 (d) An alpha particle (He2+, containing two protons and two neutrons) is released from rest at location A. Use your answer from part (c) to determine the initial acceleration of the alpha particle. (Use 6.646×10−27 kg for the mass of He2+.) < > m/s2 Save for Later Attempts: 0 of 10 used Submit Answer
Solution
0 0

A Geiger counter detects radiation such as alpha particles by using the fact that the radiation ionizes the air along its path. A thin wire lies on the axis of a hollow metal cylinder and is insulated from it (Figure 1). A large potential difference is established between the wire and the outer cylinder, with the wire at higher potential; this sets up a strong electric field directed radially outward. When ionizing radiation enters the device, it ionizes a few air molecules. The free electrons produced are accelerated by the electric field toward the wire and, on the way there, ionize many more air molecules. Thus a current pulse is produced that can be detected by appropriate electronic circuitry and converted to an audible "click." Suppose the radius of the central wire is 145 μm and the radius of the hollow cylinder is 1.80 cm. Part A What potential difference between the wire and the cylinder produces an electric field of 2.00×104 V/m at a distance of 1.20 cm from the axis of the wire? (Assume that the wire and cylinder are both very long in comparison to their radii.) Submit Request Answer Figure 1 of 1

Solution
0 0