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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Gravitational acceleration comparison
- Ellie Snyder
- · Replies 5 ·
What is the acceleration of a cylinder when a torque is applied to it?
- dumbdumNotSmart
- · Replies 1 ·
How Do You Calculate the Period of Oscillation for a Mass on a Spring?
- Lana Elcic
- · Replies 16 ·
Bernoulli's equation/pressure question
- Senya
- · Replies 2 ·
Proving t^2/r^3: What Went Wrong?
- jackrc11
- · Replies 1 ·
How Does Mass and Inertia Affect Tension in a Pulley System?
- dumbdumNotSmart
- · Replies 6 ·
Question regarding Earth, Moon and tidal forces
- ezach1
- · Replies 14 ·
Estimation of data stored on a CD
- Alettix
- · Replies 9 ·
Solving for Work: 14,500J Applied to 1.2m Crowbar
- NatalieWise123
- · Replies 3 ·
Two conducting balls hanging from the same point
- rlc
- · Replies 13 ·
Microscope converging lens problem
- FritoTaco
- · Replies 3 ·
Momentum After Inelastic Collison
- NatalieWise123
- · Replies 1 ·
How Do You Calculate Tension in Ropes Connecting Tugboat and Barges?
- ecsthetic
- · Replies 1 ·
Applying same torque equation but getting different results
- Better WOrld
- · Replies 17 ·
STD of Poisson distributed particle intensity
- theorem
- · Replies 1 ·
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 ·
Finding current and potential difference in a parallel circuit
- 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 ·
Finding period with spring mass formula
- 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 ·
Pulley system homework problem
- 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 ·
Polarization filters: why is my angle 64° not 53°?
- 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 ·
Velocity of a rubber duck at the moment it lands
- Tzabcan
- · Replies 2 ·
Force tension, friction, and coefficient of friction
- katie beisel
- · Replies 5 ·
A problem about Work and Energy :(
- Jettro Ulanday
- · Replies 1 ·
Is a crest a section above rest position or just the highest point?
- nilic1
- · Replies 1 ·
Circuit analysis current source problem
- Jamessamuel
- · Replies 4 ·
Magnifying glass: finding object distance with magnification +2.00
- 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 ·
Two forces at 75° with one at 195N and net force 225N
- 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 ·
Towing force needed with both front and rear brakes locked
- 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 ·
Force needed to stop a car vs scooter in same time and distance
- 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 ·
How long for 35kg mass to double speed with 55N force?
- Chris18
- · Replies 3 ·
Finding voltage at node B using 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 ·
Alpha particle momentum problem with two velocities
- 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 collision with gold nucleus: momentum and kinetic energy
- 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 ·
Electric potential from three equal charges equidistant from a point
- idkwhatname2131
- · Replies 1 ·
Calculating Bulk and Shear Modulus with Young's Modulus and Poisson's Ratio
- Simon Cook
- · Replies 2 ·