Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Extension cord connected to heater - Find the power
- thisisfudd
- · Replies 4 ·
Perturbation of hydrogen energy due to nucleus
- JamesJames
- · Replies 5 ·
Combination of electric and magnetic fields
- bemigh
- · Replies 3 ·
Simplifying Transmission Coefficient Calculation for a Potential Barrier
- Nylex
- · Replies 3 ·
Questions About the Formation of Hydrochloric Acid
- avinash
- · Replies 4 ·
Integration by substitution help
- fstam2
- · Replies 2 ·
Solving for x: (sin x)^6 + (cos x)^6 = 5/6 ((sin x)^4 + (cos x)^4)
- no name
- · Replies 6 ·
Units regarding a photoelectric question
- bemigh
- · Replies 5 ·
How to Differentiate the Electrostatic Potential to Derive the Electric Field?
- Phymath
- · Replies 2 ·
Solving a Doppler + Beat Frequency Problem for Bat Speed
- kv2
- · Replies 2 ·
How Do You Calculate the Acceleration and Distance of a Box Pulled at an Angle?
- lefty1405
- · Replies 2 ·
Explaining Earth's Orbit Using a Geocentric Reference Frame
- stunner5000pt
- · Replies 4 ·
Power of D-Cell Batteries: Calculate & Understand Benefits/Risks
- thisisfudd
- · Replies 2 ·
Calculating Speed on an Inclined Plane | Mechanical Energy #2
- billyghost
- · Replies 5 ·
How Does Frictional Force Affect Bullet Penetration in Wood?
- mugzieee
- · Replies 3 ·
Maximum liklihood estimators again help
- semidevil
- · Replies 2 ·
Mechanical Energy: Calculating Work w/ Box, Ramp & Friction
- billyghost
- · Replies 3 ·
Calculating Charge on Conducting Balls Hanging from Strings
- Gale
- · Replies 7 ·
How Do Meters, Kelvins, and Watts Relate in This Equation?
- tony873004
- · Replies 4 ·
Solving Gamma-Ray & X-Ray Photon Questions: Help Needed
- siresam88
- · Replies 2 ·
What Does a ≡ b (mod m) Imply in Mathematics?
- yay_goobers2112
- · Replies 4 ·
Is This C++ Code Correct for Reading Bytes from an MP3 File?
- Math Is Hard
- · Replies 26 ·
Impact Parameter of Alpha Particle Rutherford
- PhatPartie
- · Replies 3 ·
Magnets making things hurtle towards me eep
- lythia
- · Replies 2 ·
How Is Maximum Resistance Calculated in a Superconducting Ring Experiment?
- andrew410
- · Replies 6 ·
Quick question about a telescoping series
- Townsend
- · Replies 2 ·
What is the Total Force Exerted by the Cockpit Seat on a Climbing Jet Pilot?
- wildr0id
- · Replies 6 ·
How Is the Period of Uniform Circular Motion Affected by Latitude?
- stunner5000pt
- · Replies 2 ·
What Are the Dynamics in a Circular Orbit?
- oldunion
- · Replies 26 ·
Head on Collision with a car physics
- shamockey
- · Replies 3 ·
Kinematic Problem: Solve Traffic Light Stop Distance
- ireneooi
- · Replies 4 ·
Net force exerted between hemispheres of uniformly charged sphere
- Kelvin
- · Replies 6 ·
Calculate Magnetic Field Between Two Wires: Help Needed
- waywardtigerlily
- · Replies 2 ·
Is length real or is it illusory?
- whatzzupboy
- · Replies 2 ·
How Does Lenz's Law Affect Electron Force Calculation?
- andrew410
- · Replies 2 ·
Understanding Lenz's Law: Solved Example on Homopolar Generator
- andrew410
- · Replies 2 ·
How Do You Calculate Spring Constants and Bullet Speeds in Physics Problems?
- 94sonoma
- · Replies 2 ·
Solving for x: Graph of y=|2x|-|3-x|
- ][nstigator
- · Replies 4 ·
Calc Work Needed to Push Car up 11.0 deg Incline
- xelda
- · Replies 6 ·
Why Does the Toy Truck Stop at 3.2m Instead of 3.5m?
- Alex_
- · Replies 10 ·
Is Cos2x the Same as Cos^2(x) in the Equation Cos2x + Cosx + 1 = 0?
- aisha
- · Replies 5 ·
Check expression equivalent to
- aisha
- · Replies 2 ·
Calculating RLC Circuit Damping Time and Energy Loss
- andrew410
- · Replies 2 ·
Terminal Speed of Golf Ball Dropped from 25m
- ProBasket
- · Replies 6 ·
Simply Checking an Answer in Calculus
- The Bob
- · Replies 7 ·
Solving a Three-Player Nash Equilibrium
- msmith12
- · Replies 1 ·
Electrostatics charged particle Problems
- blue_soda025
- · Replies 2 ·
Total Accel: (15)^2/173 + .6614 m/s^2
- runner1738
- · Replies 2 ·
Special relativity and velocity of a particle
- matpo39
- · Replies 2 ·
Calculate the coefficient of kinetic friction between the slide and the child
- physicsss
- · Replies 8 ·
Stone's Height Above Window Question
- jen333
- · Replies 12 ·
How to solve 2 - 2sin^2(theta) = cos(theta) on the domain [0,2pi]
- aisha
- · Replies 12 ·
Most Plausible Reason for Large Stable Nuclei's Extra Neutrons
- Faiza
- · Replies 2 ·
E-field for infinitely long cylinder
- LakeMountD
- · Replies 4 ·
Solve Initial Value Problem: dy/dx = x-4-xy-4y, y(0)=4 | Step-by-Step Guide
- p53ud0 dr34m5
- · Replies 8 ·
Did I solve the calculus problem correctly?
- p53ud0 dr34m5
- · Replies 10 ·
Tangent to the Point: Solving for b and c
- danne89
- · Replies 2 ·
Struggling with Parallel Plate Capacitor Concepts?
- jay3050
- · Replies 2 ·
How to Find Electric Field at Semicircle Center Without Calculus?
- PhysicsNewb
- · Replies 2 ·
Calculus: Solving Limits with Difference of Cubes Method
- a_ng116
- · Replies 21 ·
Calculating Net Force on Mass: 800N, 347N, 0.074m/s/s
- mohlam12
- · Replies 6 ·
Very simple combining fields question
- Jacob87411
- · Replies 2 ·
Solving Algebraic Fractions with 3 Binomials
- homegrown898
- · Replies 3 ·
Calculating Work and Coefficient of Kinetic Friction for a Sliding Seal
- askthefool
- · Replies 5 ·
How Do I Analyze and Graph the Function \( \frac{x}{x^2-4} \)?
- jzq
- · Replies 4 ·
Electric Field Calculation for Non-uniformly Charged Sphere
- ambuj123
- · Replies 2 ·
Solving Work Needed to Push 1147kg Car Up 15.1o Incline
- Jayhawk1
- · Replies 13 ·
How do I solve x^3 + y^3 = 1, x^4 + y^4 = 1
- mohlam12
- · Replies 4 ·
Troubleshooting C++ Code: How to Fix Input Issues in a Programming Project
- hytuoc
- · Replies 6 ·
Where Did I Go Wrong in Finding the Derivative of y=t/(1+1/t)?
- danne89
- · Replies 10 ·
What other instruments are related to the Tuba?
- mrs_joel_madden64
- · Replies 6 ·
Elastic Collision and conservation of momentum
- futb0l
- · Replies 3 ·
Tacoma Bridge Collapse: Physics of Vibration and Sound
- liv
- · Replies 19 ·
What is the Correct Method for Calculating Error Expressions in Capacitance?
- NotaPhysicsMan
- · Replies 7 ·
What is the tension in the cord as the elevator accelerates?
- runner1738
- · Replies 3 ·
Problem on finding second derivative.
- jzq
- · Replies 3 ·
Parametric equations for particle motion
- jaidon
- · Replies 2 ·
How can I prove Gauss's Law for a continuous charge distribution?
- AKG
- · Replies 10 ·
How can I find limits and slopes in calculus?
- erik05
- · Replies 9 ·
Solving Region Enclosed by: 2y=4sqrt(x), y=5, 2y+3x=7
- ProBasket
- · Replies 6 ·
Parabola passes through the points (0,4), (0,-1) and (6,1)
- HawKMX2004
- · Replies 2 ·
Solving for E and B Fields Using Lorenz Force Equation | Electromagnetics Help"
- robert25pl
- · Replies 6 ·
Solve Integral: 50 + 14sin(πt/12) | 0 to 12
- ziddy83
- · Replies 6 ·
How Do I Apply F=ma to Solve These Physics Problems?
- idriveatc
- · Replies 3 ·
A little push on this trig identity
- aisha
- · Replies 4 ·
Motion questions show me the steps
- dagg3r
- · Replies 2 ·
Try it do you get the same answer?
- aisha
- · Replies 3 ·
Simplify in sum and difference equation
- aisha
- · Replies 17 ·
Check this for me involving sin theta
- aisha
- · Replies 3 ·
Solving a Projectile Motion Problem: Find the Initial Speed
- catalyst55
- · Replies 19 ·
Issues with Gravity: Help Amanda Solve Physics Equation
- amandablackwood
- · Replies 13 ·
Electric Potential Difference and charges
- chattkis3
- · Replies 3 ·
How Do You Calculate the Maximum Height of a Projectile Using Energy Concepts?
- WingsofSelkhet
- · Replies 3 ·
Proving Trigonometric Identity Involving Double Angle Formula
- aisha
- · Replies 6 ·
Estimate takeoff speed of aircraft
- physicsss
- · Replies 8 ·
Understanding Specific Heat and Calorimetry: Experiment or Equation?
- misskitty
- · Replies 3 ·
Momentum of Bullet and Angle of Impact: A Physics Lab
- SnitchSeekaHarry
- · Replies 2 ·
Help Us Solve This Equation: 2/3 k - (k + 1/4) = 1/12 (k + 4)
- amandablackwood
- · Replies 3 ·
What is the minimum normal force he must exert?
- physicsss
- · Replies 2 ·
Designing Shoes to Walk on Eggs: Ideas Welcome!
- flipper2388
- · Replies 4 ·