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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Vector addition and subtraction with 70-unit vectors pointing west and south
- tjnguyen
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Magnitude and Acceleration Problem
- MFlood7356
- · Replies 5 ·
Projectile Motion XY Plane: Solving for Height & Time
- philok
- · Replies 3 ·
How Is Friction Torque Calculated in a Rotating Spherical Shell System?
- Chandasouk
- · Replies 2 ·
How to Find Vector Components Along an Axis
- anti404
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What is the drill's angular acceleration?
- algorith01
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Finding voltage and current with series and parallel resistor networks
- magnifik
- · Replies 7 ·
Charge on a nonconducting rod with a conducting shell
- reising1
- · Replies 9 ·
Find the tension in two cables with a 68kg rescuer attached to them.
- quanitary
- · Replies 2 ·
Physics proton electric field questions
- sophia.m
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Buoyant Force Direction in the Millikan Oil Drop Experiment
- Juan Pablo
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How Do You Calculate Expected Value in a Coin Toss Betting Game?
- Karebear
- · Replies 16 ·
2D momentum of two objects next to a wall
- Jeriho
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What is the solution to the magnetic field problem in Purcell's book?
- fluidistic
- · Replies 7 ·
How to convert cm^-1 into erg or joules
- AutisticAlien
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What is the ratio between radius and string length in a revolving mass system?
- zhenyazh
- · Replies 2 ·
What is the acceleration of a crate after it has just started to move?
- quanitary
- · Replies 2 ·
Find the coefficient of friction between the puck and the ice.
- quanitary
- · Replies 3 ·
Find time given velocity and distance
- Calhoun295
- · Replies 1 ·
Calculating Speed of Falling Banana - Just Before it Hits Ground?
- FeDeX_LaTeX
- · Replies 2 ·
Calculating Resultant Velocity with Vector Addition
- tannye92
- · Replies 8 ·
What is the work required to move an electron in an electric field?
- huntingrdr
- · Replies 2 ·
Heat extracted from source in a 40% efficient heat engine
- Windseaker
- · Replies 2 ·
Ratio for Kindetic and Potential energy
- Awer1
- · Replies 3 ·
Distance traveled by pi mesons in special relativity
- jaejoon89
- · Replies 6 ·
Two-Dimensional Projectile Motion: Finding Vertical and Horizontal Distances
- philok
- · Replies 4 ·
Circular motion space station question
- zhenyazh
- · Replies 4 ·
Why doesn't the pendulum's max displacement equal the plane's acceleration?
- zhenyazh
- · Replies 1 ·
Digging a hole through the earth
- aloshi
- · Replies 3 ·
What is the Retarding Force on a Golf Ball Plugged in Soft Ground?
- Grinter1
- · Replies 1 ·
Magnitude of temperature change?
- xmonsterx
- · Replies 2 ·
Perpendicular 3D Vector Problem
- dayyou
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Finding acceleration from position measurements at three times
- zhenyazh
- · Replies 1 ·
Finding the net electric field
- xapril
- · Replies 2 ·
Block collidining with a spring
- zhenyazh
- · Replies 2 ·
Resonance Frequency of a Damped Oscillator
- zhenyazh
- · Replies 1 ·
Solving a Frictionless Pulley Problem: Find m2's Acceleration
- zhenyazh
- · Replies 2 ·
Solving the Problem of Angular Speed After Clay Striking Bar
- zhenyazh
- · Replies 5 ·
Kirchhoff's Rules: Find Currents in 2R, 3R, 1R, 4R, 10R Circuit
- aly1188
- · Replies 3 ·
Person throwing block down frictionless incline gets complex solutions
- moderate
- · Replies 4 ·
Coefficients of Fourier series for periodically driven oscillators
- Oijl
- · Replies 9 ·
Archer shooting at target 60 m up a 30° slope
- sarabeara1990
- · Replies 1 ·
Solving Camera Lens Problem for Film Size of 24x36mm
- gadawg90
- · Replies 1 ·
How fast is the smaler sphere moving when they collide?
- sonnycorleone
- · Replies 1 ·
Angular Speed of a ball of clay
- otodaskee
- · Replies 1 ·
Simplifying 4a^4b^3/a^5b^6 × -a^3/-b^2
- Jenninifer
- · Replies 11 ·
Calculate the magnitude of the angular momentum of the earth
- Chandasouk
- · Replies 2 ·
Understanding Rms Current: Definition, Calculation, and Resolved Issues
- magnifik
- · Replies 3 ·
Direction of Net Electric Field
- bleedblue1234
- · Replies 2 ·
Height of Ball with Velocity Vector
- dchan28
- · Replies 1 ·
Calculating Speed of a Moving Block with Friction and Pulley System
- dragonladies1
- · Replies 3 ·
Calculating RMS Current and Phase Shift in an Inductive Circuit
- magnifik
- · Replies 2 ·
How many neutrons are released in uranium-235 fission?
- songoku
- · Replies 6 ·
Explanation of Center of Mass in a 1.00 m Pipe vs. Human Limbs
- balletgirl
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Work performed on a proton between two charged plates
- KidDreamer
- · Replies 3 ·
Exam review question (acceleration)
- Axson
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Velocity final estimate on frictionless craft
- vitologarcia
- · Replies 6 ·
What is Gauss's Law for a Concentric Cable?
- ndoc
- · Replies 2 ·
Net Electric Field at Point P Due to Fixed Charges
- nw0rbrolyat
- · Replies 5 ·
Gauss's Law, electric field of sphere
- krtica
- · Replies 2 ·
Finding pitching speed range when throw angle varies ±5°
- Cfem
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Find angle between vector A = 2i - 2j - 3k and the y-axis
- ian_spurlock
- · Replies 25 ·
Wave propagation along a rubber cord.
- Gravitino22
- · Replies 4 ·
How do you make an eraser launcher using pill container?
- madeeeeee
- · Replies 3 ·
How Do You Calculate Mechanical Energy and Work for a Thrown Ball?
- new^2^physics
- · Replies 1 ·
Impulse and momentum change for a 2 kg cart
- sweetpea1993
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Finding force F to keep two 5 kg blocks in static equilibrium
- hunter007
- · Replies 5 ·
Converting Coulombs->Charges and vice versa
- scorchy11
- · Replies 2 ·
How does the Doppler Effect apply to a laser connected to an oscillating spring?
- Seedling
- · Replies 3 ·
Where Is the Net Electric Field Zero Between Two Charged Lines?
- amodedude1
- · Replies 1 ·
Michelson morley exp and rotating 90 degrees
- LBloom
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Estimate its capacitance to earth
- Ripperbat
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How Long Does Light Take to Travel 93 Million Miles?
- FloridaPhys
- · Replies 4 ·
How Do Two Balls Meet Mid-Air When Thrown at Different Times and Heights?
- Arshad_Physic
- · Replies 1 ·
Two blocks on an Incline w/ Friction
- dragonladies1
- · Replies 6 ·
Phase Transitions and Critical Phenomena
- Cryphonus
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Calculating the velocity of electron
- FloridaPhys
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How Do You Calculate Tension and Angles in a Two-Mass Equilibrium Problem?
- SeanGillespie
- · Replies 5 ·
Elevator scale reads 0.76 of normal weight, find acceleration
- Cllzzrd
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Finding height change in ballistic pendulum lab
- weasal1975
- · Replies 1 ·
Simple Harmonic Motion (SHM) with Spring and Block: Homework Solutions
- UMDstudent
- · Replies 8 ·
How Do You Determine Time in an RC Circuit for Charge and Current Changes?
- wildredhead
- · Replies 1 ·
Solving a 2m Inclined Plane Problem with Negligible Friction
- cortozld
- · Replies 6 ·
Instantaneous Center of Rotation: What is the Instantaneous Axis of Rotation?
- akari
- · Replies 4 ·
Find the electric potential energy of this system of charges
- matt72lsu
- · Replies 4 ·
Emergency relief - Plane Vector
- Sirsh
- · Replies 1 ·
What is the Force Exerted by a Pebble on a Block in an Ideal Atwood's Machine?
- taskev21
- · Replies 1 ·
Physics question regarding Circular movement and tension
- slain4ever
- · Replies 1 ·
Boat Vector Physics Problem with River Current - Homework Help
- Awsom Guy
- · Replies 2 ·
Is this how weather and communication satellites work?
- blitzmael
- · Replies 1 ·
Calculating Minimum Velocity for Knocking Down a Burning Building Door
- alessandro
- · Replies 1 ·
Work done by lifting block attached to spring
- demonelite123
- · Replies 5 ·
Momentum of an 8 kg bowling ball rolling at 2 m/s
- sweetpea1993
- · Replies 7 ·
How Will Charge Distribute on a Spherical Conductor Near a Positive Charge?
- EV33
- · Replies 2 ·
Sound Intensity of a howler monkey
- Soaring Crane
- · Replies 13 ·
Infinite planes and electric feilds
- EV33
- · Replies 2 ·
Calculating Force at an angle with kinetic friction coefficient
- skibum143
- · Replies 11 ·
Electric field at origin due to 6 charges.
- MelodyE427
- · Replies 1 ·
Solving Police Car Overtaking Motorbike Problem
- Ax3
- · Replies 2 ·
2D Motion of Sphere - Inclined Plane
- Keano16
- · Replies 1 ·