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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Smiple circuit with just one resistor
- adamg
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What is the acceleration of a 20kg pail being pulled upward with 300N force?
- celect
- · Replies 2 ·
How to Calculate Velocities and Momentum in an Elastic Collision of Bumper Cars
- Drakon25th
- · Replies 5 ·
Solving Problem 14-54: Force on Box - Rope Tension
- jjiimmyy101
- · Replies 4 ·
Magnetic Force: Work or No Work?
- broegger
- · Replies 2 ·
Calculating the Speed of a Block After Moving Downward: Work and Energy Equation
- jjiimmyy101
- · Replies 3 ·
Simple harmonic motion and specific gravity. PLEASE HELP
- hbanana
- · Replies 5 ·
What Are the Characteristics and Effects of Electromagnetic Forces and Fields?
- nautica
- · Replies 2 ·
Which side of the triangle gives it maximu area?
- MathLete
- · Replies 6 ·
Show that the electric field outside the shell is everywhere
- tandoorichicken
- · Replies 2 ·
What is the field outside the shell?
- tandoorichicken
- · Replies 2 ·
Carnot cycle, heat and monatomic ideal gas
- frznfire219
- · Replies 3 ·
Implicit Differentiation: Finding Points on an Ellipse Tangent to a Box
- ACLerok
- · Replies 9 ·
Simple Harmonic Motion Problems
- mustang
- · Replies 2 ·
Proving Efficiency | How to Prove Question on Heat Engines
- jlmac2001
- · Replies 2 ·
Intuitive explanation of gravity outside a sphere?
- jacobfreeze
- · Replies 4 ·
Solving Pressure with Gases in a Diving Bell
- Antepolleo
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Hat is the value of the second capacitor?
- liljediboi
- · Replies 4 ·
Electric potential of insulating rod
- pattiecake
- · Replies 3 ·
Question concerning rotation etc
- JamesL
- · Replies 3 ·
Measuring the Angle of Refraction in a Triangular Prism Lab
- UrbanXrisis
- · Replies 2 ·
Understanding the Hall Effect: Comparing Germanium and Copper Magnetometers
- Casey_Switzer
- · Replies 2 ·
Uniform Magnetic Field Causes Induced Current in Loops
- broegger
- · Replies 6 ·
Electromagnetic induction and EMF in wire
- adamg
- · Replies 7 ·
How Deep is the Well When Humming Establishes Standing Waves?
- hbng02
- · Replies 2 ·
Calculating Water Rocket Force: Velocity, Time & Mass
- Db75
- · Replies 3 ·
Mass of H Atom: 1.673x10^-27 kg
- jazzchan
- · Replies 2 ·
A bit of direction is needed, if possible
- Calliah
- · Replies 3 ·
Physics Research: Investigating Inclination of Roads
- i speak french
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Proving dy/dx = (a+4b)x^(a+4b-1) for y = x^(2a+3b)/x^(a-b), a and b Integers
- tofu
- · Replies 2 ·
Analyzing Olympic Records: Finding k & n in t = kd^n
- JPR
- · Replies 2 ·
Solving for Time and Velocity in Hot-Air Balloon and Ski Jumping Scenarios
- hyen84
- · Replies 6 ·
What Determines the Flight Time of Projectiles with the Same Horizontal Range?
- MaximumTaco
- · Replies 4 ·
Floating in Fresh & Salt Water: Buoyant Force & Wooden Boat Impact
- holly
- · Replies 20 ·
Kinetic friction on a moving object
- KingNothing
- · Replies 2 ·
Make a Homemade Drum: Physics Basics for Beginners
- BrainFreeze
- · Replies 2 ·
Spherical Optimization and beyond
- Muon12
- · Replies 4 ·
Calculating Mass Using Newton's Laws
- Beretta
- · Replies 3 ·
Gravitation/circular motion problem
- Moebius
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Why Is Calculating the Speed of the 0.89g Particle Post-Collision Challenging?
- Xamfy19
- · Replies 2 ·
How Do You Calculate Eigenvalues for a 2x2 Symmetric Matrix?
- ilikephysics
- · Replies 3 ·
A man, a boat, and the tractrix formed
- Prodigy Girl
- · Replies 3 ·
Find the final speed of the heavier particle
- Aerospace
- · Replies 6 ·
How to Correctly Apply Newton's Laws to Determine Forces on a Dragged Log?
- Beretta
- · Replies 7 ·
How Far Does a Magnetic Field Extend?
- Xion
- · Replies 2 ·
Derive Parallel-Plate Capacitance w/ 2 Dielectrics
- broegger
- · Replies 2 ·
Help with Two Particles Elastic Glancing Collision
- Mac13
- · Replies 12 ·
What is the relationship between force and velocity in relativity and calculus?
- samoth
- · Replies 11 ·
Calculating Magnetic Fields Force & Momentum
- eku_girl83
- · Replies 2 ·
Gas isobaric conditions problem
- moonlit
- · Replies 9 ·
Solving Electric Potential & Field of Continuous Charge Rod: Q&A
- oooride
- · Replies 5 ·
What is the tension required to raise a crate using frictionless pulleys?
- jamdr
- · Replies 4 ·
Draw and name the shape of the following molecules: a) CO3^-2 b) SF2
- decibel
- · Replies 8 ·
Need Help with Advancing Physics C/W? Let's Tackle Data Analysis Together!
- vezzer
- · Replies 30 ·
Measuring Depth of Water in a Tank: Course Help
- Jay_102
- · Replies 2 ·
Rearranging Formula with t as Subject - Grace
- physicsgirl_nz
- · Replies 4 ·
Explaining Work & Accel. of Particle Moving in Circular Path
- garytse86
- · Replies 4 ·
Inclined Planes and Acceleration
- itinerantphysicist
- · Replies 8 ·
Find Work done by a force field
- wakingrufus
- · Replies 5 ·
Physics teacher is bad, can I teach myself?
- SparkimusPrime
- · Replies 7 ·
Why Do Different Sized Balls Travel the Same Distance in a Physics Experiment?
- amurray
- · Replies 5 ·
Solve Collision Problem: 1300kg Car A vs 1200kg Car B
- Bling
- · Replies 2 ·
How do I calculate current, power, and force in a circuit with given variables?
- KingJaymz
- · Replies 2 ·
Electric Fields charge problem
- oooride
- · Replies 6 ·
Solving the Force & Acceleration of 8Be Nucleus
- radmonovic
- · Replies 2 ·
What Type of Gas Can Be Used for Isothermal and Adiabatic Energy Storage?
- Claire84
- · Replies 2 ·
A proton colliding with a stationary carbon nucleus
- HandcuffedKitty
- · Replies 2 ·
How Do You Calculate the Internal Resistance and EMF of a Solar Cell?
- incubusguy88
- · Replies 2 ·
Ballistic Pendulum Homework Problem
- freshpulp
- · Replies 2 ·
What is the skier's launch speed?
- hyen84
- · Replies 3 ·
Calculating Free Electron Density in a Metal Wire
- NINHARDCOREFAN
- · Replies 9 ·
Why Is My Calculation of Work for Sliding a Crate Up a Ramp Incorrect?
- Xamfy19
- · Replies 2 ·
Calculating Heat of Vaporization for Solid CO2 in Water
- nsw
- · Replies 12 ·
What is the total electrical potential energy
- Moose352
- · Replies 2 ·
Homework problems (galvanometers)
- eku_girl83
- · Replies 2 ·
Deriving the Maxwell Stress Tensor for a Spherical Charge Distribution
- mark9696
- · Replies 2 ·
True or False on kinetic energy
- PhysicsPhun
- · Replies 6 ·
Still no confident with these answers.
- nautica
- · Replies 6 ·
Just one harmonic motion problem
- mustang
- · Replies 7 ·
Fluid Dynamics & Physics Questions: Answers & Discussion
- holly
- · Replies 3 ·
Differentation Problem (involves product rule)
- Cod
- · Replies 3 ·
Solving the Integral: $\int_{0}^{\ln 2} e^{-2x} \,dx$
- tandoorichicken
- · Replies 5 ·
Electromagnetic Forces and Fields: Ranking, Ratio, and Distance Calculations
- nautica
- · Replies 5 ·
What Is the Magnetic Field Between Two Parallel Wires Carrying Current?
- nautica
- · Replies 4 ·
Solving Calc AP Problem 1: Total Distance 0-2
- tandoorichicken
- · Replies 2 ·
Towing a 25.0 kg suitcase at constant speed with handle at an angle
- PrudensOptimus
- · Replies 4 ·
How Well Do You Understand Inductive Circuits and Magnetic Fields?
- nautica
- · Replies 4 ·
Physics Project Ideas: Statics & Dynamics
- ermines
- · Replies 2 ·
Circuit Help (Kirchoff's I Believe)
- i_hate_physics
- · Replies 3 ·
Speed of an object thrown down a hole to the center of the earth
- qpt
- · Replies 2 ·
Calculate Center of Mass for 1.05cm Baseball Bat with Linear Density Formula
- HandcuffedKitty
- · Replies 2 ·
Troubleshooting Ideal Gas Laws Problems: Mass, Moles, and Volume Calculations
- moonlit
- · Replies 9 ·
How Do You Convert Momentum from MeV/c to kg-m/s?
- gnome
- · Replies 2 ·
Finding the mass of the earth's atmosphere
- deltabourne
- · Replies 2 ·
How Do Material Thickness and Thermal Conductivity Affect Heat Loss in Clothing?
- moonlit
- · Replies 2 ·
Calculating Reactions at C & D Using 2 Force System | Step-by-Step Guide
- formulajoe
- · Replies 2 ·
Need a bit of help with j-hat and i-hat in a collision
- jperez94
- · Replies 2 ·
What Is the Work Required to Accelerate a Proton from 0.5c to 0.7c?
- SsUeSbIaEs
- · Replies 3 ·
What is the thrust of the engine?
- NanoTech
- · Replies 4 ·