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10 Best Physics Videos on Torial: Top Problem Solutions
Discover the most helpful physics videos on Torial covering everything from magnetic fields and projectile motion to thermal cameras and universe expansion. Each video provides step-by-step solutions to help you master physics concepts.
How to Calculate the pH of a Buffer Solution After Adding Strong Acid or Base
Master buffer chemistry with this complete walkthrough of calculating pH changes when strong acids or bases are added to buffer solutions. Learn how to use the Henderson-Hasselbalch equation, track stoichiometric changes, and avoid the common mistakes that trip up students on exams.
How to Find Eigenvalues and Eigenvectors of a 3×3 Matrix
Complete walkthrough of finding eigenvalues and eigenvectors of a 3×3 matrix. Learn the characteristic polynomial method, how to solve cubic equations, and find eigenvectors through row reduction.
How to Calculate Allele Frequencies After Natural Selection Using Hardy-Weinberg Equilibrium with Selection Coefficients
Complete walkthrough of calculating allele frequencies after natural selection using Hardy-Weinberg equilibrium. Learn how to apply selection coefficients, understand fitness values, and predict how populations evolve over time.
How to Find the Magnetic Field from a Long Straight Current-Carrying Wire Using Ampere's Law
Complete walkthrough of calculating the magnetic field around a long straight wire using Ampere's Law. Learn how to choose the right Amperian loop, apply the law correctly, and understand why symmetry makes this problem solvable without integration.
How to Calculate Deadweight Loss from a Tax on a Competitive Market
Complete walkthrough of calculating deadweight loss from a per-unit tax in competitive markets. Learn how to find the new equilibrium, calculate consumer and producer surplus changes, and understand why taxes create efficiency losses even when they raise revenue.
How to Calculate the Equilibrium Constant Kc from Initial Concentrations and Equilibrium Data
Complete step-by-step guide to calculating Kc from experimental data in equilibrium chemistry. Learn how to set up ICE tables, solve quadratic equations, and avoid the common mistakes that cost students points on exams.
How to Calculate Recombination Frequency and Map Distance from a Dihybrid Cross
Complete walkthrough of recombination frequency calculations and genetic mapping. Learn how to identify parental and recombinant phenotypes, calculate recombination frequency, convert to map distance, and avoid the common mistakes that trip up genetics students.
How to Evaluate ∫ x²e^x dx Using Integration by Parts
Complete walkthrough of evaluating ∫ x²e^x dx using integration by parts. Learn when to apply the technique twice, how to choose u and dv correctly, and avoid the common mistakes that trip up calculus students.
How to Find the Range and Maximum Height of a Projectile Launched at an Angle
Learn kinematics with this complete walkthrough of projectile motion. Decompose velocity into components, use the kinematic equations, and find both the maximum height and horizontal range of a projectile.
How to Calculate Price Elasticity of Demand Using the Midpoint Formula
Understand microeconomics with this complete walkthrough of calculating price elasticity of demand. Learn the midpoint formula, understand what elasticity values mean, and avoid the common mistakes that cost students points.
How to Find the Area Between Two Curves Using Integration
Get a complete guide to finding the area between curves using integration. Learn how to find intersection points, set up the integral correctly, and avoid the common mistakes that cost students points.
How to Calculate pH from the Molarity of a Strong Acid
Step-by-step guide to calculating pH from concentration in acid-base chemistry. Learn the pH formula, understand why strong acids are different, and avoid the common mistakes that trip up students.
How to Calculate Consumer and Producer Surplus from Market Equilibrium
Complete walkthrough of calculating consumer and producer surplus in welfare economics. Learn how to find equilibrium, set up the integrals, and interpret what these measures actually mean for market efficiency.
How to Find the Electric Field from a Uniformly Charged Ring Along Its Axis
Learn electric field calculations with this complete walkthrough of a classic physics problem. Learn the integration setup, avoid common vector mistakes, and understand the symmetry arguments.
How to Find the Derivative of (3x² + 5x - 2)/(x² + 1) Using the Quotient Rule
Step-by-step solution for applying the quotient rule in calculus. Learn how to identify u and v, apply the formula correctly, simplify the result, and avoid the 6 most common mistakes students make.
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