A proton and electron are released at the same speed traveling in the same direction into a region with a uniform B-field. Compared to the circular path traveled by the electron, what can we say about the path traveled by the proton? A. Its path will have a smaller radius than that of the electron. B. It will rotate in the opposite direction as the electron. C. It will rotate in the same direction as the electron. D.Its path will have the same radius as that of the electron.   E. Its path will have a larger radius than that of the electron

6. Two identical charged particles of mass 70 grams are at the ends of strings that are the same length l = 10 cm attached to the ceiling. The charged particles repel, as shown in the sketch below: The angle between the strings is o = 20°. Use force analysis to develop equations that describe the balance of forces along both the horizontal and the vertical directions. If we let the symbols 'FG' and 'FE' represent gravitational and electric force magnitude, type the symbol in the first answer box that corresponds to the force that balances out the tension along the - direction. In the second answer box type in the symbol for the force that balances out the tension along the , direction. Ft.x L Fr.y =[ Not yet correct, tries 6/18 Submit All Answers Hint: Try to work purely symbolically without substituting any numbers. Draw a free body diagram that shows the forces acting on one of the charged particles. There should be three forces: gravitational, electric, and tension from the string.…

7. A proton initially moves left to right long the x axis at a speed of 4 x 10° m/s. It moves into an electric field, which points in the negative x direction, and travels a distance of 0.8 m before coming to rest. If the proton's mass and charge are 1.67 x 10-27 kg and 1.60 x 10-19 C respectively, what is the magnitude of the electric field? a. 1.67 N/C b. 0.01 N/C c. 0.104 N/C d. 0.13 N/C

2. A proton is traveling north through a uniform B-field that is also directly northward. Which of the following is true? A. The proton will not accelerate B. The proton will speed up C. The proton will slow down D. The proton will move is a circle

A conducting sphere is intially neutally charged. Its grounded, meaning the sphere has a direct path to earth ground. Which of the following describes the flow of electrons when a positvely charged rod is broght near the sphere? a. Electrons flow within the sphere but do not go into or out of the ground. b. Electrons flow out of the ground and into the sphere. c. Electrons flow out of the sphere and into the ground. d. There is no flow of electrons.

3)An electron with speed 2.15×107 m/s is traveling parallel to a uniform electric field of magnitude 1.15×104 N/C . Part A How far will the electron travel before it stops? Part B How much time will elapse before it returns to its starting point?

In a homogeneous electric field, an electron e and a proton p are simultaneously liberated from rest, as depicted. Assume that the distance between the particles is adequate for the electric field to be the sole force acting on each particle after release. When the particles are still in the field at a later moment, the electron and proton will have the same a. direction of motion b. velocity c. displacement d. magnitude of acceleration e. magnitude of force acting on them.

1.0 nC y 1.0 cm 1.0 cm 60° 60° 2.0 nC 2.0 nC 1.0 cm What is the direction of the force on the 1.0 nC charge in the Figure? Specify the direction as a positive angle measured from the +x axis to the nearest 0.1 deg.

3. Each small sphere shown has a charge of magnitude q but the stationary charge in the center is negative while the two moving charges are positive. The moving charges (each of mass 0.20 kg) are attached to the ends of 4.0 m long strings and they are moving like conical pendulums as shown at a constant velocity of 12.0 m/s in uniform circular motion. The strings each make an angle of 30° to the vertical. Find the magnitude of the charge q. 300: 30° 4.0 m 4.0 m + q - 9 +q

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