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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Circuit/capicator/resistor problem
- physics213
- · Replies 5 ·
Elastic Potential Energy- finding spring constant
- bigboss
- · Replies 3 ·
Special relativity - What if the speed of light was infinite?
- pinkerpikachu
- · Replies 8 ·
Capacitors/Resistors/time constant current
- physics213
- · Replies 2 ·
Magnetic field of revolving disk
- Dell
- · Replies 1 ·
What Mass Must the Smaller Ball Have to Prevent the Larger Ball from Bouncing?
- stanwille
- · Replies 1 ·
Lenz's law and direction of current
- whitewolfw2
- · Replies 1 ·
Gravity and Satellite Equations
- robostar
- · Replies 3 ·
Gull shell acceleration physics problem
- wadini
- · Replies 6 ·
Drop a bowling ball through the middle of the earth
- windrar
- · Replies 3 ·
Newton's laws of motion and cars
- windrar
- · Replies 3 ·
Angular momentum and perfectly inelastic collision
- cozzbp
- · Replies 5 ·
Potential energy equilibrium positions
- frostking
- · Replies 2 ·
Calculating Ambient Electric Fields in Thunderclouds for Aircraft Safety
- Binkey24
- · Replies 5 ·
Momentum, man running on flatbed
- synchronous
- · Replies 7 ·
Projectile Motion Problem with thrown ball off roof
- coco87
- · Replies 5 ·
Conservation of Angular Momentum with Changing mass
- cozzbp
- · Replies 5 ·
How Much Torque Is Required to Stop the Rotating Rod System in 8.53 Seconds?
- Prophet029
- · Replies 4 ·
Magnetic and electric field between current carrying coaxial cables
- disillusion
- · Replies 1 ·
Resolving pixels on a computer screen
- fubag
- · Replies 15 ·
Acceleration physics course work
- wadini
- · Replies 4 ·
What Is the RMS Speed of a Nitrogen Molecule at 35°C?
- synchronous
- · Replies 3 ·
Find Max Height for Basketball Throw: Is 9.8 Correct?
- wadini
- · Replies 1 ·
Kirchhoff's Rule: Including Capacitors in Loop Problems
- physics213
- · Replies 1 ·
Ratio of Sun's Diameter to the Moon's
- Pupil
- · Replies 2 ·
Determine acceleration on slope using coefficient of static friction
- linzeluv
- · Replies 4 ·
Football Release Height: 19.0m/s, 30.5deg, 35.0m Away
- brunettegurl
- · Replies 4 ·
Need help calculating maximum height
- farhan769
- · Replies 1 ·
Frequency of Oscillation for a Spring with Attached Block
- brunettegurl
- · Replies 8 ·
Calculating Change in Momentum of a Softball After Bat Contact
- synchronous
- · Replies 2 ·
Calculate Distance of E. coli Bacteria w/ Acceleration of 151
- farhan769
- · Replies 2 ·
How Do Ice Skaters' Speeds Affect Their Rotation Upon Grabbing a Rod?
- smillphysics
- · Replies 7 ·
Time & Speed- Need to check answers
- reyes117
- · Replies 2 ·
How to Balance a Meter Stick with Unequal Masses at Different Positions?
- smillphysics
- · Replies 6 ·
Increasing Power factor via series capicitance
- hsainz
- · Replies 1 ·
Gradient of T: Fly Bug to Warm Quickly
- bengaltiger14
- · Replies 1 ·
Velocity, Speed, Acceleration, and CAPA homework problem - I'm stumped
- EarthBear
- · Replies 5 ·
Projectile Motion and Human Cannonball
- micnike1
- · Replies 5 ·
Magnetic Field-Induced square loop
- dominatesean
- · Replies 6 ·
Kinetic energy gained by a rocket
- phyzmatix
- · Replies 22 ·
How Do You Solve the 2D Ball Bounce Problem with Angle and Velocity Constraints?
- Gil-galad
- · Replies 1 ·
How do I find the line of action of this resultant force?
- aps0324
- · Replies 5 ·
Gravity between 2 objects touching
- talaroue
- · Replies 13 ·
How Do You Calculate the Mass of Planet Z?
- talaroue
- · Replies 5 ·
R=6.37X10^6G*M/(R+366.1X10^3)=gGravity Force on 1.09 kg Sphere in Space Shuttle
- talaroue
- · Replies 4 ·
Radius of Satellite Orbit - 2.1 Days Period
- talaroue
- · Replies 7 ·
Calculating the Angular Velocity of a Turntable After Blocks Are Dropped on It
- talaroue
- · Replies 2 ·
Effect of a pair of slip rings in a DC motor
- Starbright
- · Replies 7 ·
Gravitational Force Between Two Identical Rods of Mass m and Length l
- peeyush_ali
- · Replies 7 ·
Electric Field of a Half Charged Circle
- glueball8
- · Replies 7 ·
Calculate Speed and Time of Longitudinal Wave in 6m Spring
- jaron
- · Replies 2 ·
Why Does My Physics Calculation Differ from the Markscheme?
- thomas49th
- · Replies 1 ·
High energy electrons and hydrogen(protons) A Level Physics Question
- thomas49th
- · Replies 1 ·
Vector Components HW: Find Distance/Dir from Lake B to Base Camp
- xswtxoj
- · Replies 2 ·
A Person Standing on a Leaning Ladder
- erik-the-red
- · Replies 8 ·
Understanding the Physics of Music: Frequencies, Overtones, and Resonance
- BandGeek13
- · Replies 6 ·
Design Space Station Homework: Rotation Speed & Gravitational Acceleration
- PrideofPhilly
- · Replies 3 ·
Calculating Torque of a Suspended Bar with Tension | Homework Solution
- PrideofPhilly
- · Replies 1 ·
How to Calculate Equivalent Torque Distance on a Pivoting Rod?
- PrideofPhilly
- · Replies 1 ·
Calculating Altitude for a Satellite in Synchronous Orbit with Saturn
- synchronous
- · Replies 5 ·
How Do You Calculate Force and Normal Force on an Inclined Plane?
- TS656577
- · Replies 18 ·
What is the resultant displacement of a spelunker in a cave exploration?
- balling12
- · Replies 4 ·
Solving Physics Questions: Need Help with Homework
- AmyJohnson91
- · Replies 10 ·
Help distinguishing between series and parallel capacitors
- paulrb
- · Replies 6 ·
Angle that the stone is thrown off of the cliff?
- balling12
- · Replies 32 ·
Phys 1301: Dropping Chestnuts from a Tree Branch
- ramancer
- · Replies 1 ·
Electromagnetic wave astronaut problem
- Cakiemmatdo
- · Replies 3 ·
Graph of x vs. t in x = xo + vot + (1/2)at^2
- ramancer
- · Replies 2 ·
Finding Unknowns in Vector Equations
- nickh89
- · Replies 2 ·
Compasses and Magnetic Field: B of Earth with respect to B of wire
- jamba88
- · Replies 1 ·
Frequency when tension is increased
- brunettegurl
- · Replies 7 ·
Simultaneous Trig Equations for Tension in a Supported Bar
- djdato
- · Replies 2 ·
About tension (is this correct ?)
- live4physics
- · Replies 1 ·
What is the Damping Constant for a Hard Boiled Egg on a Spring?
- jghlee
- · Replies 3 ·
Help, annoying friction equation
- The riddler
- · Replies 3 ·
How Do You Calculate the Center of Mass for a Club-Ax?
- kathyt.25
- · Replies 1 ·
What is the man's power output?
- ride4life
- · Replies 2 ·
Drawing Magnetic Fields around Fixed Magnets
- PhysicsJunkie
- · Replies 2 ·
Trajectory, does it clear a certain height problem help
- iamtrojan3
- · Replies 2 ·
Tipping a crate friction physics problem
- dharcha1
- · Replies 1 ·
What is the formula for finding the tension of the boom in this problem?
- physics10189
- · Replies 5 ·
Very simple series circuit question
- crazybandit
- · Replies 7 ·
Finding Velocity Components Without Angle Information
- brentwoodbc
- · Replies 9 ·
UV Image of Sun: Temp Variations
- grscott_2000
- · Replies 3 ·
How Fast Was the Car Going Based on Skid Marks and Deceleration?
- MxS
- · Replies 7 ·
Physics Online Quiz Question on Momentum
- okgo
- · Replies 2 ·
Double slit experiment and wavelengths
- brunettegurl
- · Replies 1 ·
Problems with integrating and Deferential equation
- IRNB
- · Replies 13 ·
Work done by a heat engine - quick issue with units used in the solution
- Faloren
- · Replies 2 ·
Fundamental frequency and changes to it
- brunettegurl
- · Replies 2 ·
What is the correct method to find the flux of a vector field through a surface?
- bengaltiger14
- · Replies 4 ·
What is the distance moved up the plane (friction problem)
- aps0324
- · Replies 3 ·
Uncertainty momentum position velocity
- jackxxny
- · Replies 1 ·
How Do You Calculate Bicycle Deceleration?
- Masschaos
- · Replies 5 ·
A Few Statements on Electricity and Circuits
- Procrastinate
- · Replies 1 ·
Is this assumption correct? (dynamic friction)
- aps0324
- · Replies 1 ·
Help with 6th Grade Physics: Block and Tackle, Potential & Kinetic Energy
- soccerstar321
- · Replies 3 ·
Translational Speed of Cylinder on Inclined Plane: Find the Answer
- bns1201
- · Replies 1 ·
Discrepancy bet. maxwell + circuit notation w/ inductors?
- azi100
- · Replies 15 ·
At what time did the murder take place? (Differential Equations)
- IRNB
- · Replies 5 ·