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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Problem involving Coulomb's law
- 1729
- · Replies 6 ·
Insulator in an electric field
- Vibhor
- · Replies 3 ·
Electric Field Intensity. Finite sheet of charge.
- azizlwl
- · Replies 8 ·
Calculating the current supplied battery, working out P.D....
- Meezus
- · Replies 6 ·
Hanging Sign Equations: Finding Tension and Force Exerted by Beam
- Olivia Carey
- · Replies 2 ·
How does a dielectric affect the capacitance of a capacitor?
- catch22
- · Replies 6 ·
Work done by motor against gravity
- k_squared
- · Replies 1 ·
AP Physics Summer Assignment Question
- NoIdea2015
- · Replies 5 ·
Finding velocity of elastic collision with angles
- Valenti
- · Replies 1 ·
Possible to use centripetal acceleration for this problem?
- Warlic
- · Replies 9 ·
Kinematics of a falling object to hit target
- vetgirl1990
- · Replies 3 ·
How Does Increasing Pulling Force Affect the Average Velocity of a Trolley?
- Ayoub99k
- · Replies 13 ·
Finding Tension in Horizontal circular motion with friction
- applejuicesam
- · Replies 9 ·
Weird Defensive Force Field of Alien Space Probe
- pkwhitey
- · Replies 4 ·
Basics of hydrostatic force on a plane surface
- Mohammad Danial
- · Replies 1 ·
Normal modes and degrees of freedom in coupled oscillators
- Nishikino Maki
- · Replies 5 ·
Centripetal Force hydrogen atom
- gswagmoney
- · Replies 3 ·
Finding the voltage after current was found
- Gbox
- · Replies 7 ·
Pulleys Jh Homework Statement: Understanding the Concept of Pulleys
- Jakecp
- · Replies 9 ·
Remote Control Car Specifications
- trynalearn
- · Replies 2 ·
What is the Output Force of a Wheel Axle?
- NatalieWise123
- · Replies 14 ·
How Six 2V lamps could be lit to their normal brightness.
- Meezus
- · Replies 7 ·
4.2 Acceleration due to gravity lab error
- jakeginobi
- · Replies 3 ·
Need help with question regarding polarization filters
- ZHIHUI
- · Replies 5 ·
Brief explantation as to why x(max)= v(max)/ang freq?
- Shawn Huetter
- · Replies 3 ·
Electromagnetic Induction concept understanding
- roinujo1
- · Replies 1 ·
Finding friction w/ out coefficient?
- Mrchilko
- · Replies 13 ·
Conservation of Momentum - Finding Initial Velocity
- annastewert
- · Replies 2 ·
De Broglie Wavelength for 1Mev electron
- Phynos
- · Replies 1 ·
Coefficient of static friction on a ramp?
- katie beisel
- · Replies 3 ·
Kepler's law of periods problems about orbiting satellite
- placebooooo
- · Replies 7 ·
Voltage between two points of a circuit
- Gbox
- · Replies 4 ·
Acceleration of Space Shuttle at Lift Off
- NatalieWise123
- · Replies 4 ·
Sliding Rod and Rotating Disc Question
- aerograce
- · Replies 5 ·
Projectile Motion -- the landing of a rubber duck....
- Tzabcan
- · Replies 2 ·
Force tension, friction, and coefficient of friction
- katie beisel
- · Replies 5 ·
A problem about Work and Energy :(
- Jettro Ulanday
- · Replies 1 ·
What is the true definition of a crest in physics?
- nilic1
- · Replies 1 ·
Circuit analysis current source problem
- Jamessamuel
- · Replies 4 ·
Finding Image Distance with a Converging Lens: Magnifying Glass Problem
- FritoTaco
- · Replies 12 ·
How to Calculate RMS Current in a Simple Circuit
- elctronoob
- · Replies 8 ·
Charge distribution on the surfaces of parallel conducting s
- amind
- · Replies 4 ·
How do I graph the position for this velocity-time graph?
- Sarah R.
- · Replies 1 ·
Appying a force bar + Young's Modulus + Force Applied
- Jtwa
- · Replies 3 ·
Impulse of a ball being thrown on to the wall
- blee2x2
- · Replies 1 ·
Need help figuring out this forces question
- m_t
- · Replies 2 ·
Problem involving Ampere's Law and Understanding
- kbarry2295
- · Replies 4 ·
Finding acceleration of a block on the way down an incline
- Maylandra
- · Replies 2 ·
Orbital Period Calculation for Binary Star Systems
- PAstudent
- · Replies 2 ·
Solid disk frictional torque magnitude
- Han_Cholo
- · Replies 9 ·
Centripetal force question -- car speed on an offramp
- Dorthea
- · Replies 9 ·
What Happens to a Pendulum's Period at 90 Degrees Inclination?
- racwen
- · Replies 13 ·
Examples of Beginning of Bernoulli
- Vicente
- · Replies 2 ·
Tension in a cable with a traffic light -- Torque question
- Scatteredheroes
- · Replies 27 ·
How Can Impulse-Momentum Theorem Be Applied to Springs?
- Thomas Brown
- · Replies 6 ·
Statics problem: towing force and friction
- jaguar ride
- · Replies 15 ·
Equilibrium: max distance traveled; undisturbed tension
- Sociomath
- · Replies 3 ·
Net force acting on a piston shaft of an actuator
- rajdeep1
- · Replies 5 ·
Conservation of Energy of cart Problem
- physics411
- · Replies 5 ·
Car & Scooter: Momentum & Force - Who Needs More?
- Saanchi
- · Replies 8 ·
Finding the Reaction Force in a Truss
- Vicinity24
- · Replies 22 ·
How Do You Calculate Initial Conditions in First Order Transient Circuits?
- Crutchlow13
- · Replies 7 ·
Electric field of a coaxial cable
- balanto
- · Replies 1 ·
How High Above the Window Was the Flowerpot When It Fell?
- David112234
- · Replies 16 ·
Momentum Analysis in Rest Frame Decay of Particle with Mass M
- whatisreality
- · Replies 1 ·
Calculate the average velocity of the car
- David112234
- · Replies 4 ·
Distance travelled in a Cyclotron
- Uku
- · Replies 1 ·
Solving Homework: Increasing Speed of 35kg Mass w/ 55N Force
- Chris18
- · Replies 3 ·
Nodal Analysis Problem: Where Did I Go Wrong in Using the Superposition Method?
- terryds
- · Replies 13 ·
Weight of Soldier with Machine Gun in Freefall
- sidt36
- · Replies 6 ·
Finding Centripetal acceleration in a vertical system
- Anonymous117
- · Replies 1 ·
Refraction in Isosceles triangle [Uni Phys 2]
- jonathanlv7
- · Replies 9 ·
Why Use Unit Vectors in Calculations?
- vetgirl1990
- · Replies 4 ·
Finding max. distance and time (projectile motion)
- cvc121
- · Replies 1 ·
Torque of two locations with steel beams
- Blobikins
- · Replies 1 ·
Calculating Momentum and Speed: IGCSE Forces and Motion Textbook Example
- SuchBants
- · Replies 6 ·
Two masses attached by a rod orbiting around the Earth
- (Ron)^2=-1
- · Replies 4 ·
How Does Mixing Water in Different Sequences Affect Entropy Change?
- Pouyan
- · Replies 18 ·
Alpha Particle & Gold Nucleus Collision
- Oribe Yasuna
- · Replies 17 ·
Does a Voltmeter Measure EMF Accurately in High Internal Resistance Scenarios?
- MBBphys
- · Replies 5 ·
Initial acceleration of the charge
- sergiokapone
- · Replies 5 ·
Understanding Electricity and Magnetism: Solving Practice Problems
- Shashank Verma
- · Replies 1 ·
Projectile Motion Long Jump Question
- cvc121
- · Replies 1 ·
Question about electric potential at a point
- idkwhatname2131
- · Replies 1 ·
Calculating Bulk and Shear Modulus with Young's Modulus and Poisson's Ratio
- Simon Cook
- · Replies 2 ·
Transverse Velocity of Wave, given position & time
- Ryaners
- · Replies 4 ·
Finding angular velocity after a collision
- jhyrman
- · Replies 1 ·
Photons of light emitted within the D-lines per second?
- moenste
- · Replies 5 ·
Need help with Newton's Law of Physics
- alex740rider
- · Replies 19 ·
A question about electric field
- Cookiey
- · Replies 11 ·
How to Calculate Sag in Terms of Weight, Pulleys, and Distance?
- leonkhasi
- · Replies 20 ·
Conservation of Work and Energy
- CivilSigma
- · Replies 5 ·
What is the voltage across an inductor in an LR circuit?
- xSpartanCx
- · Replies 2 ·
Rotational Motion: Solving Baseball Throw Homework
- Cait602
- · Replies 2 ·
Diffraction & Interference - interference fringes per cm
- Isaac Pepper
- · Replies 3 ·
How to calculate the total resistance in this circuit?
- Adel Makram
- · Replies 10 ·
Intensity of light through two polarizers
- Mddrill
- · Replies 3 ·
Find the frictional force on the block
- katie beisel
- · Replies 10 ·
Determine force that will cause cylinder to roll out of cart
- bkw2694
- · Replies 3 ·
Physics Olympiad question resistance and Electric circuit
- Hashiramasenju
- · Replies 8 ·