Zach Star
Why imaginary numbers are needed to understand the radius of convergence
Why imaginary numbers are needed to understand the radius of convergence
Zach Star
The applications of hyperbolic trig | Why do we even care about these things?
The applications of hyperbolic trig | Why do we even care about these things?
Curated Video
Trigonometric Phase Shifts
"Trigonometric Phase Shifts” explains how to construct phase shifts of trigonometric functions.
Flipping Physics
Equipotential Surfaces
The electric potential difference in a uniform electric field is derived and used to show lines of equal electric potential or equipotential lines. Equipotential lines and surfaces of point charges and dipoles are shown. The equation for...
Flipping Physics
Parallel Plates Electric Potential Difference using an Integral
Calculus is used to derive the equation for the electric potential difference between two parallel plates of equal but opposite charge. It’s a uniform electric field. The significance of the negative in the equation is explained.
Flipping Physics
#21 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Newton's 2nd Law to determine the acceleration of a block being pulled at an angle on a level surface.
Flipping Physics
#1 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about Mechanical Work.
Flipping Physics
#29 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about determining the magnitude of the centripetal acceleration of an object moving in a circle, however, you might not initially identify it as such.
Flipping Physics
#28 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about how the work done by gravity changes when an object slides up instead of down an incline.
Flipping Physics
#15 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about finding the work done on a disc by a spring while it moves in one full circle.
Flipping Physics
#68 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about determining the equation for the changing magnetic field which is inducing an emf on a wire loop.
Flipping Physics
#56 Electricity and Magnetism Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Farady's and Lenz' Laws to determine the magnitude and direction the induced current on a square loop in a changing magnetic field.
Flipping Physics
Gauss's Law - Charged Sphere Electric Field
This video shows how to prove that the electric field outside a uniformly charged sphere is the same as if the charged sphere were a point particle. Using Gauss' law, the electric field is shown to be constant and dependent only on the...
Math Fortress
Calculus II: Integration By Parts (Level 5 of 6)
This video goes over three examples, covering the proper way to find definite integrals that require the application of the integration by parts formula. An example covering the tabular method is also presented.
Math Fortress
Calculus III: Two Dimensional Vectors (Level 9 of 13)
This video is a review of Two Dimensional Vectors. This video goes over unit vectors, standard unit vectors and direction of vectors.
Curated Video
Finding Acute Angle Measures in Right Triangles using Inverse Sine Function
In this video, you will learn how to find the measure of an acute angle in a right triangle using the inverse sine function. The video explains the ratios of side lengths for the trigonometric functions and introduces the concept of...
Curated Video
Finding the Tangent of an Acute Angle in a Right Triangle
In this video, the teacher explains how to use the tangent ratio to find the height of a flying plane. By setting up an equation using the tangent of the given angle and the known distance, the teacher demonstrates how to solve for the...
Curated Video
Finding Acute Angle Measures in Right Triangles Using Inverse Cosine
This video explains how to find the measure of an acute angle in a right triangle when only the side lengths are known. It introduces the concept of inverse trigonometric functions, specifically the inverse cosine function, to determine...
Curated Video
Trigonometry in the Coordinate Plane: Sine, Cosine, and Tangent
In this video, the teacher explains how to find the sine, cosine, and tangent of angles in the coordinate plane using right triangle geometry. The Pythagorean theorem and the acronym SOHCAHTOA are used to understand the relationships...
Flipping Physics
Phase Constant
The Phase Constant is demonstrated. This is an AP Physics C: Mechanics topic. This video is a small portion of a longer video: "Simple Harmonic Motion Derivations using Calculus (Mass-Spring System)"
Brian McLogan
How solve a problem with changing angle for related rates
👉 Learn how to take the derivative of a function. Learn how to find the derivative of a function using the chain rule. The derivative of a function, y = f(x), is the measure of the rate of change of the function, y, with respect to the...
Brian McLogan
Learn to eliminate the parameter with trigonometric equations
Learn how to eliminate the parameter in a parametric equation. A parametric equation is a set of equations that express a set of quantities as explicit functions of a number of independent variables, known as parameters. Eliminating the...
Flipping Physics
Work due to the Force of Gravity on an Incline by Billy
Billy does an example problem to review the work equation.
Curated Video
Finding Lengths in Right Triangles: Introducing the Secant Ratio
In this video, the teacher explains how to find the length of segment DG in a right triangle without using the cosine ratio. Instead, they introduce the secant ratio, which compares the length of the hypotenuse to the length of the leg...