BM

Bob Mckinnon

Numerade Educator
Math/Physics Tutor

Biography

Tutored students struggling with math or physics at high school and college level.

Education

Bob has not yet added their education credentials.

Educator Statistics

Numerade tutor for 6 years
60 Students Helped

Topics Covered

Unlocking the Secrets of Thermal Properties: Understanding Matter
Unlocking the Power of Magnetic Fields and Forces
Understanding Equilibrium and Elasticity: A Comprehensive Guide
Discover the Power of Gravitation: Exploring the Science Behind It

Bob's Textbook Answer Videos

08:25
Physics

(a) A proton, traveling with a velocity of $4.5 \times 10^{6} \mathrm{m} / \mathrm{s}$ due east, experiences a magnetic force that has a maximum magnitude of $8.0 \times 10^{-14} \mathrm{N}$ and a direction of due south. What are the magnitude and direction of the magnetic field causing the force? (b) Repeat part (a) assuming the proton is replaced by an electron.

Chapter 21: Magnetic Forces and Magnetic Fields
Bob Mckinnon
06:10
Physics

A charge of $-8.3 \mu \mathrm{C}$ is traveling at a speed of $7.4 \times 10^{6} \mathrm{m} / \mathrm{s}$ in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is $52^{\circ} .$ A force of magnitude $5.4 \times 10^{-3} \mathrm{N}$ acts on the charge. What is the magnitude of the magnetic field?

Chapter 21: Magnetic Forces and Magnetic Fields
Bob Mckinnon
03:57
Physics

A particle that has an 8.2$\mu \mathrm{C}$ charge moves with a velocity of magnitude $5.0 \times 10^{5} \mathrm{m} / \mathrm{s}$ along the $+x$ axis. It experiences no magnetic force, although there is a magnetic field present. The maximum possible magnetic force that the charge could experience has a magnitude of 0.48 $\mathrm{N}$ . Find the magnitude and direction of the magnetic field. Note that there are two possible answers for the direction of the field.

Chapter 21: Magnetic Forces and Magnetic Fields
Bob Mckinnon
06:04
Physics

Two charged particles move in the same direction with respect to the same magnetic field. Particle 1 travels three times faster than particle 2. However, each particle experiences a magnetic force of the same magnitude. Find the ratio $\left|q_{1}\right| /\left|q_{2}\right|$ of the magnitudes of the charges.

Chapter 21: Magnetic Forces and Magnetic Fields
Bob Mckinnon
12:53
Physics

One component of a magnetic field has a magnitude of 0.048 $\mathrm{T}$ and points along the $+x$ axis, while the other component has a magnitude of 0.065 $\mathrm{T}$ and points along the $-y$ axis. A particle carrying a charge of $+2.0 \times 10^{-5} \mathrm{C}$ is moving along the $+z$ axis at a speed of $4.2 \times 10^{3} \mathrm{m} / \mathrm{s} .$ (a) Find the magnitude of the net magnetic force that acts on the particle. (b) Determine the angle that the net force makes with respect to the $+x$ axis.

Chapter 21: Magnetic Forces and Magnetic Fields
Bob Mckinnon
08:43
Physics

An ionized helium atom has a mass of $6.6 \times 10^{-27} \mathrm{kg}$ and a speed of $4.4 \times 10^{5} \mathrm{m} / \mathrm{s}$ . It moves perpendicular to a $0.75-\mathrm{T}$ magnetic field on a circular path that has a 0.012 -m radius. Determine whether the charge of the ionized atom is $+e$ or $+2 e .$

Chapter 21: Magnetic Forces and Magnetic Fields
Bob Mckinnon
1 2 3 4 5 ... 10