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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Sequences/series - just a silly question
- DivGradCurl
- · Replies 9 ·
Estimate how fast he should be moving
- WillParadigm
- · Replies 5 ·
Finding the Area Within Two Ellipses Using Integration?
- ACLerok
- · Replies 7 ·
Integrating sqrt(3-x²)/sqrt(3) and sqrt(3-3x²)
- ACLerok
- · Replies 5 ·
How Does Thevenin's Method Apply to Complex Circuit Analysis?
- JamesJames
- · Replies 10 ·
How Can Friction and Spring Dynamics Affect Velocity on a Circular Track?
- Ravnus9
- · Replies 3 ·
Why Does the Basis (1, 1, 1) Satisfy the Given System of Linear Equations?
- vsage
- · Replies 2 ·
How Do You Calculate the Distance a Motorboat Travels After Engine Shutdown?
- physicsss
- · Replies 8 ·
Solving Glancing Collision: 50Kg Object Velocity Before Collision
- punjabi_monster
- · Replies 3 ·
How Does Wave Frequency Change with Each Harmonic in a Standing Wave Experiment?
- thunderfvck
- · Replies 2 ·
Calculating Power Delivered by Battery in RC Circuit
- JamesL
- · Replies 7 ·
Rocket acceleration when a bolt falls off 6.40 s after launch
- mattmaka
- · Replies 10 ·
Force due to uniformly charged rod
- stunner5000pt
- · Replies 2 ·
Trouble Setting Up Projectile Motion
- quality101
- · Replies 2 ·
How Do You Calculate the Derivative of 5/(x^2/5) Using the Definition Alone?
- daveed
- · Replies 2 ·
Where Can the Electric Field Between Two Unequal Charges Be Zero?
- stunner5000pt
- · Replies 15 ·
What is the current if the battery is shorted momentarily?
- Euclid
- · Replies 3 ·
Incline Problem: Block Projected Up 35 Degrees, 8.2 ft/s
- scottgregorysg
- · Replies 4 ·
Calculating Acceleration and Time for a Freight Train to Reach 83.4 km/hr
- Lilly
- · Replies 2 ·
Does cream soup roll farther than broth due to rotational kinetic energy?
- Parth Dave
- · Replies 9 ·
Hey physics instant velocity ques
- lilman7769
- · Replies 3 ·
Quadratic drag equation by partial fractions
- matpo39
- · Replies 2 ·
Ideal gas temperature and pressure in a rigid insulated box
- Nenad
- · Replies 6 ·
Banked Curve with Friction Problem
- ruck101
- · Replies 3 ·
How Do I Solve These Tricky Integration Problems?
- nuub
- · Replies 2 ·
Problem on electric field due to dipoles
- stunner5000pt
- · Replies 4 ·
Check My Math Answers - Is It Right or Wrong?
- buffgilville
- · Replies 3 ·
Are You Curious About How Graphite in a Pencil Leaves a Mark on Paper?
- seve
- · Replies 3 ·
How Do I Isolate the Friction Force in This Physics Equation?
- pinky2468
- · Replies 2 ·
How can I solve these two physics problems involving work and springs?
- Fused
- · Replies 4 ·
How do I rearrange the kinematic equation to solve for time?
- TheShapeOfTime
- · Replies 8 ·
Discrete math problem college level question
- afang
- · Replies 2 ·
Solve Atwood's Machine w/Initial Velocity: Change Accel.?
- pinky2468
- · Replies 2 ·
Studying for an Upcoming Special Relativity Exam
- fresh
- · Replies 2 ·
Finding horizontal force when a car stops in 61 m
- Angeluzmaia
- · Replies 4 ·
What is the force constant of its rear suspension
- dg_5021
- · Replies 2 ·
Calculating the Force on Electron Near a Long Straight Wire
- GreenDinos
- · Replies 5 ·
Finding derivatives of square root and rational functions
- buffgilville
- · Replies 2 ·
What is the tension in the cable problem.
- Dominic
- · Replies 2 ·
Limits involving radicals and trig functions
- EasyStyle4747
- · Replies 4 ·
Solving Sound Reduction Index Problem: Air to Water
- tyco05
- · Replies 2 ·
Max Hill Steepness for Low-Powered Cars
- physicsss
- · Replies 2 ·
Proving there exist unique integers m and n bounding a real number x
- YourLooks
- · Replies 4 ·
In Preparation of 1st Physics Exam
- quality101
- · Replies 4 ·
Calculating r(dot): Dynamics Time Derivative of Radius
- Spectre5
- · Replies 2 ·
Solving a Puzzling Problem Involving Mass and Angle
- SnowOwl18
- · Replies 4 ·
Velocity based frictional force equations
- abertram28
- · Replies 2 ·
Different techniques of integration
- DennisG
- · Replies 3 ·
Deriving the geometric series sum formula
- preet
- · Replies 4 ·
Solving the Problem: Calculating the Tension in a Sagging Wire
- Freeze
- · Replies 2 ·
Solar energy flux, Earth's population
- phy
- · Replies 5 ·
Calculating Force of Gravity in Circular Motion: Formula and Explanation
- Blassemer
- · Replies 5 ·
Thin Lens Exp: Prove Linear Graph, Determine Slope and Intercept
- Kalashnikov
- · Replies 2 ·
How Do You Calculate the X-Component of Electric Force from a Potential Graph?
- vsage
- · Replies 2 ·
Stopping distance on slope and conical pendulum angle
- songokou77
- · Replies 4 ·
What Is the Correct Acceleration for Each Object?
- Alkatran
- · Replies 6 ·
Finding N for Fibonacci ratios converging to golden ratio
- leoflc
- · Replies 3 ·
How Do You Find F'(8) Using Given Function Values?
- Dantes
- · Replies 2 ·
Where Should the Fifth Charge Be Placed in a Square of Four Identical Charges?
- kimlett
- · Replies 2 ·
HOW can I find the displacement of a sailboat tacking against the wind?
- Alkatran
- · Replies 3 ·
Solve Projectile Problem: Cowboy Dropping from 25m High
- rocky_xiii
- · Replies 2 ·
How Far Does a Bullet Fall in 0.5 Seconds?
- faisal
- · Replies 3 ·
Trouble Figuring out what object this this
- Spectre32
- · Replies 2 ·
What are the kinetic frictional forces in an accelerating elevator?
- BlackMamba
- · Replies 22 ·
GRE 61, small oscillation problem
- quantumworld
- · Replies 2 ·
Is the Open University Online Physics Degree Worth Pursuing?
- xargon
- · Replies 1 ·
Electric field of a Hemisphere
- photon_mass
- · Replies 2 ·
Interesting and annoying power problem
- diegojco
- · Replies 4 ·
Velocity Changes: Understanding Direction and Acceleration in Changing Objects
- UrbanXrisis
- · Replies 2 ·
X versus t graph, simple kinematics?
- WillParadigm
- · Replies 13 ·
Showing by definition that limits exist
- physicsuser
- · Replies 5 ·
What Is the Ideal Placement of a Rod on a Pendulum String for Complete Rotation?
- JonDaMon8
- · Replies 6 ·
How Do Uncertainties Combine in Measurements?
- UrbanXrisis
- · Replies 2 ·
Uniformly accelerated motion- a weird kangaroo prob
- bjr_jyd15
- · Replies 5 ·
How to Solve a 2 Body 1 Dimension Problem with a Dropped Ball and a Thrown Ball?
- abcba
- · Replies 2 ·
Finding the antiderivative of x² √(9-x²)
- SeReNiTy
- · Replies 4 ·
Force needed to pull a 75 kg water skier at constant velocity
- shawonna23
- · Replies 2 ·
How Can You Solve the Integral of x*arctan(x)/(1+x^2)^2 from 0 to Infinity?
- 1905
- · Replies 2 ·
Current through body grasping 20 kV power supply terminals
- alonzo
- · Replies 2 ·
Finding Initial Velocity of a Freely Falling Object
- elsmith2
- · Replies 2 ·
How to show that 2^n is O(n!) without induction
- Klion
- · Replies 7 ·
Solving Kinmatics Problem - Ball Dropped from Rest
- tony873004
- · Replies 2 ·
What components in a car can accelerate it?
- justinbaker
- · Replies 8 ·
How can I simplify this electrical circuit problem?
- JamesL
- · Replies 3 ·
Acceleration of a 33 kg rock falling with 239 N air resistance
- shawonna23
- · Replies 2 ·
Drawing Lewis Structures for VSPER: Problem Solutions
- decibel
- · Replies 3 ·
Work done by gravity on a load pushed horizontally
- Faiza
- · Replies 10 ·
What would happen if you travelled at 3/5 c
- stunner5000pt
- · Replies 3 ·
Non-crossing handshakes for 20 people at round table
- afang
- · Replies 5 ·
Is there a continuous function with no tangent line anywhere?
- chjopl
- · Replies 6 ·
What Is the Work Done by Gravity on a Horizontally Moving Load?
- Faiza
- · Replies 3 ·
Special relativity: simultaneity, length contraction, and time dilation in train problem
- stunner5000pt
- · Replies 6 ·
What Is the Person's Velocity After the First 25 cm of the Chin-Up?
- Blckshdwdragon
- · Replies 2 ·
GRE # 37 ( elementary particle question)
- quantumworld
- · Replies 8 ·
Will Applying Brakes Prevent Sue's Collision with the Van?
- UrbanXrisis
- · Replies 2 ·
How Do You Calculate the Distance and Relative Speed Between Two Ships?
- quick
- · Replies 4 ·
Finding plane takeoff speed from watch string angle during acceleration
- lmf22
- · Replies 2 ·
Electric potential of a spherical shell with uniform charge density
- stunner5000pt
- · Replies 2 ·
Derivation of the electric field from the potential
- stargirl22
- · Replies 6 ·
Kinematics - find velocity and acceleration
- UrbanXrisis
- · Replies 2 ·