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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Calculating Current Split in Parallel Circuit with Frequency of 100 sec-1
- awakeinroom8
- · Replies 3 ·
What is the solar radius of Rigel and Procyon B?
- snabelpablo
- · Replies 3 ·
How Far Does a Package Travel Horizontally When Dropped from a Plane?
- yoyophysics1
- · Replies 12 ·
What is the density of the wood?
- G-reg
- · Replies 4 ·
Drag Racing - Involving Work and Velocity
- marcus1255
- · Replies 1 ·
Calculating Velocity of Wave in Wood Stick and Resonance Tube
- Fleet
- · Replies 1 ·
Finding the resultant and eq. for 3 vector on one point
- needhelp1
- · Replies 3 ·
Problem relating to skateboarding down a ramp
- marcus1255
- · Replies 4 ·
How Does Mass Affect the Force Required to Overcome Friction?
- maym
- · Replies 1 ·
Pulley problem - finding tensions and acceleration
- reesespieces2
- · Replies 2 ·
Projectile Motion (Firefighter)
- Chandasouk
- · Replies 8 ·
Angular Acceleration of Wheels: Solve Homework Problem
- Devin Longo
- · Replies 3 ·
A small ball rotating and along a curve and landing at a certain distance
- farleyknight
- · Replies 2 ·
How Is Average Net Force Calculated on a Mercedes?
- JMurph
- · Replies 1 ·
Is my physics quiz on confirmations correct?
- CanadianEh
- · Replies 1 ·
Gravity/Planetary Forces Question - High School physics question
- closertolost
- · Replies 5 ·
How Does Acceleration Impact the Period of a Pendulum's Simple Harmonic Motion?
- cissablecat23
- · Replies 7 ·
Calculating Gravitational Attraction: Force of a 48.9 kg Student on Earth in N
- jojo14
- · Replies 1 ·
Help Me Understand Economics: 4 Problems I Don't Get
- jzq
- · Replies 2 ·
Angular Momentum of a Bar: Calculating Magnitude and Direction
- Dark Visitor
- · Replies 9 ·
How far does each can slide on the table?
- kashiark
- · Replies 1 ·
Work Done on Block Moving in Circle with Changing Radius
- Devin Longo
- · Replies 7 ·
Finding the Missing Projectile Motion Formulas
- Ripcurl
- · Replies 1 ·
Spring Elastic Potential Energy Help
- kmag
- · Replies 1 ·
Mass of a person who weighs 500 N
- DubKing
- · Replies 2 ·
Velocity of Light: How Space and Time Change
- petwil90
- · Replies 1 ·
Magnetic Effect of an Electric Current
- tua28494
- · Replies 1 ·
Power in RL Circuits: Solving for Time Constant
- Redd
- · Replies 4 ·
Explaination of Potential,Kinetic,and Total Enrgy involving going up a hill.
- jayced
- · Replies 1 ·
Why Does Hair Stand Up When Touching a Van der Graaf Generator?
- Idrees
- · Replies 1 ·
Calculating Resultant Forces: Salt Deposition, Aircraft Loops, and Lorry Bends
- MorallyObtuse
- · Replies 2 ·
Help with formulas for work & energy problems
- kingperfect
- · Replies 3 ·
Circular Motion with a hydrogen atom
- all_relative
- · Replies 3 ·
Hanging block Tension problem finding components/angle
- noniramen
- · Replies 3 ·
How Does Altitude Affect Gravity?
- singinglupine
- · Replies 4 ·
What Is the Net Gravitational Force on a Sphere at the Origin?
- singinglupine
- · Replies 2 ·
Massive electromagnetic charge - hypothetical for author
- Ivy78
- · Replies 2 ·
Electromagnetic Force Problem -
- ashkash
- · Replies 5 ·
Torque has been a difficult chapter
- dan987
- · Replies 2 ·
What Are Some Simple Physics Questions About Rotational Motion?
- CanadianEh
- · Replies 6 ·
Newton's laws multiple objects contact forces
- tigerwoods99
- · Replies 3 ·
What is the relationship between velocity and momentum in collisions?
- Dark Visitor
- · Replies 17 ·
Circular Motion and carnival ride
- all_relative
- · Replies 2 ·
Explaination for earth-moon centre of rotation
- Boogeyman
- · Replies 7 ·
Astronomy Help: Minimum Mass of Stars & Sun's Energy Production Explained
- karol17
- · Replies 3 ·
Horizontal force of pushed blocks
- vu10758
- · Replies 14 ·
What is the absolute magnitude of the sun
- Krissy0612
- · Replies 8 ·
How Do You Calculate the Sedimentation Coefficient of Escherichia coli?
- quietviolence
- · Replies 1 ·
Find Angular Acceleration of Pulley w/ Mass & Rope Connected
- wiveykid
- · Replies 1 ·
Current versus voltage, Very Easy (but stuck)
- pynergee
- · Replies 1 ·
How Do You Calculate Angular Acceleration and Displacement of a Rolling Ball?
- BlakeEdwards
- · Replies 1 ·
Finding Work from Angle, Mass, and Displacement
- Joel M
- · Replies 2 ·
Resolve Your Friction Problem with These Simple Solutions
- coolkid26
- · Replies 2 ·
Creating/Destroying Electron-Positron Pairs: Time Limit?
- S1CkFiSh
- · Replies 1 ·
A mass on a spring, trying to find dispacement after at certain time. ( )
- The Merf
- · Replies 3 ·
How Do You Calculate Torque to Stop and Reverse a Water-Filled Cylinder?
- billinr
- · Replies 1 ·
Solving for Pressure Rise in Manometer with Oil & Mercury
- agadag
- · Replies 4 ·
What Is the Shear Centre in Mechanics?
- donhubix
- · Replies 1 ·
Air Resistance and Trajectory Differences
- qazxsw11111
- · Replies 7 ·
Finding the recoil speed, energy stored, and compression of a spring
- JJBrian
- · Replies 8 ·
Particle Motion and Forces: Solving for Velocity, Acceleration, and Force
- helpme1
- · Replies 4 ·
The partical of mass 'm' is moving with the laws
- helpme1
- · Replies 6 ·
How will be changed the kinetic energy of a particle if its velocity will be .
- helpme1
- · Replies 1 ·
Normal Acceleration: Value & Direction of Velocity, Angular Velocity, and Force
- helpme1
- · Replies 6 ·
Forces and velocities of a sliding box
- tiffanyg
- · Replies 1 ·
How Are Triangles Used to Represent Vectors in Physics?
- redroom
- · Replies 3 ·
What mechanical paramater has a unit corresponding to expression
- helpme1
- · Replies 8 ·
Why Is the Angular Velocity of a Clockwise-Spinning CD in the -y Direction?
- Qnslaught
- · Replies 1 ·
Velocity and acceleration of a turtle
- tiffanyg
- · Replies 1 ·
Another Grade 11 Dynamics Problem Needing Urgent Help
- physics_newb
- · Replies 16 ·
Calculating Tension in Rope of Accelerating Balloon
- physics_newb
- · Replies 1 ·
How Far Was the Turtle from the Fence Post at the Start?
- tiffanyg
- · Replies 5 ·
Spring Constant off by a factor of two
- rakbarut
- · Replies 2 ·
Electric field between two charged rods
- aliaze1
- · Replies 3 ·
Static Equilibrium Weight Problem
- r_swayze
- · Replies 2 ·
ZZ help dopplers effect PHysics?
- Idrees
- · Replies 1 ·
Solving Rotational Motion: Min Force Required for Incline of 30 Degrees
- NoBodyKnows
- · Replies 3 ·
Finding magnitude of horizontal velocity
- hello115897
- · Replies 3 ·
How Fast Was the Projectile Launched on the Moon?
- ryty
- · Replies 12 ·
What is the Recoil Speed and Energy Stored in a Spring Gun After a Collision?
- JJBrian
- · Replies 5 ·
Multiplying by unit vector in electric field equation
- ChrisBaker8
- · Replies 1 ·
Calculating Pressure at Different Altitudes and Depths
- robertsa
- · Replies 2 ·
Exploring the ψ(r,t) Wave Function: Probability & Position
- S1CkFiSh
- · Replies 1 ·
Bungee Jumper Oscillation: Determine Spring Constant
- lindsk
- · Replies 1 ·
Fluids Question Regarding Density
- davidkis
- · Replies 3 ·
How Do You Calculate the Charge on Two Suspended Spheres Using Coulomb's Law?
- physmania
- · Replies 5 ·
Calculating Energy Between Objects
- ryty
- · Replies 6 ·
Recoil speed of an atomic nucleus
- Qnslaught
- · Replies 2 ·
Find tension in a rope of a mountain climber
- 1irishman
- · Replies 9 ·
Speed of a projectile launched from the moon?
- gixx3r
- · Replies 7 ·
Moment of inertia of a cone about its symmetry axis
- christensent
- · Replies 3 ·
How Do I Calculate Friction Force and Mass in This Dynamics Problem?
- physics_newb
- · Replies 7 ·
What is the gravitational force on a satellite in orbit around Earth?
- ryty
- · Replies 6 ·
How Can I Find the Coefficient of Friction for an Object Sliding Down a Ramp?
- adc1122
- · Replies 8 ·
Why Does a Thrown Stone Have Constant Acceleration?
- Stripe
- · Replies 2 ·
Calculating Heights of Swinging Balls Colliding
- rpullo
- · Replies 7 ·
Calculate Height of a Ball Bouncing Off a Hard Floor
- Dark Visitor
- · Replies 15 ·
Work Done on Box: Explanation & Sources
- SPHnoob
- · Replies 20 ·
How Do Newton's Laws Apply to Multiple Objects in Motion?
- tigerwoods99
- · Replies 9 ·