A uniform magnetic field points north; its magnitude is 1.30 T. A proton with kinetic energy 3.20 × 10−13 J is moving vertically downward in this field. What is the magnetic force acting on it? If the force is toward east, enter a positive value.

A proton traveling at 24.7° with respect to the direction of a magnetic field of strength 2.33 mT experiences a magnetic force of 6.38 × 10-17 N. Calculate (a) the proton's speed and (b) its kinetic energy in electron-volts.

i know the direction of the magnetic force on a proton is in the negative y direction and the direction of the magnetic force on an electron is in the positive y direction

Chapter 28, Problem 018 GO In the figure, a particle moves along a circle in a region of uniform magnetic field of magnitude B = 4.5 mT. The particle is either a proton or an electron (you must decide which). It experiences a magnetic force of magnitude 2.8 × 10-15 N. What are (a) the particle's speed, (b) the radius of the circle, and (c) the period of the motion? O Chapter 28, Problem 020 An electron is accelerated from rest through potential difference V and then enters a region of uniform magnetic field, where it undergoes uniform circular motion. The figure gives the radius r of that motion versus V¹/2. The vertical axis scale is set by rs= 4.0 mm, and the horizontal axis scale is set by V₁¹/2= 32.9 V¹/2. What is the magnitude of the magnetic field? (աա) 0 1/2 (1/2)

A proton moving at 4.30 x 10° m/s through a magnetic field of magnitude 1.62 T experiences a magnetic force of magnitude 8.80 x 105 N. What is the angle between the proton's velocity and the field? (Enter both possible answers from smallest to largest.)

A proton moving at 4.80 x 106 m/s through a magnetic field of magnitude 1.76 T experiences a magnetic force of magnitude 7.00 × 10-¹3 N. What is the angle between the proton's velocity and the field? (Enter both possible answers from smallest to largest. Enter only positive values between 0 and 360.) smaller value larger value O O

Which describes the net force on a magnetic dipole in a uniform magnetic field? The net force vector is in the direction of the magnetic field. O The net force vector is in the direction opposite that of the magnetic field. The net force vector is perpendicular to the direction of the magnetic field. O The net force vector is zero.