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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What Is the Effect of Torque on Pulley Systems with Friction?
- bluebear19
- · Replies 18 ·
Simple Harmonic Motion-Period of oscillations
- vrobins1
- · Replies 1 ·
Two object collision question impossible
- mrjoe2
- · Replies 4 ·
Why does Newton's first law apply to a car at constant velocity?
- alpha372
- · Replies 19 ·
Physics (Net Forces/Newton's laws)
- austin1250
- · Replies 1 ·
Rotational Inertia of a Ball-Rod system
- Dtails
- · Replies 2 ·
How Does Constant Power Affect Truck Acceleration and Position?
- nns91
- · Replies 1 ·
How Is Tension Calculated in a Moored Dirigible's Support Wires?
- emoseman
- · Replies 7 ·
What Is the Final Temperature After Dropping Hot Coins into Cooler Water?
- jcwhitts
- · Replies 3 ·
How Do You Determine Forces in a Truss Structure?
- rikka22
- · Replies 1 ·
How Do Principles of Flight Apply in Real-Life Aviation Scenarios?
- jasperhoopman
- · Replies 1 ·
How to Calculate Strain and Dimensional Changes in Complex Loading Systems
- smiffy66
- · Replies 3 ·
Elastic Collision of Two Objects (2D)
- Hermit Solmu
- · Replies 5 ·
Height, angles, and projectiles
- FrenchAtticus
- · Replies 1 ·
Circular Motion force problem?
- glindawantsme
- · Replies 1 ·
Help with electrostatics problems
- xezer90
- · Replies 1 ·
Physics Problem: Minimum Bike Speed to Clear a 2.5m Ditch
- TITO09
- · Replies 1 ·
Magnetic force on wires -direction of B
- bcjochim07
- · Replies 3 ·
Elastic Collision: Solving for Delta x
- rugbygirl2
- · Replies 1 ·
Momentum and Kinetic Energy problem
- BuddyGoodness
- · Replies 1 ·
Coefficient of friction of a spring
- reaperkid
- · Replies 1 ·
Conservation of Energy Problem involving a spring
- myoplex11
- · Replies 1 ·
Horizontal Force on Pivot Point
- Epif
- · Replies 1 ·
Transverse Sinusoidal Wave Function
- wellejj
- · Replies 1 ·
Help with rotational dynamics problem from image
- boberth2o
- · Replies 1 ·
Bungee Jumping (Finding distance and spring constant)
- jheld
- · Replies 8 ·
Box pulled along rough surface with position x = 0.5t³ + 2t
- dbb2112
- · Replies 27 ·
Compensating for Gravity in Archery: Finding the Correct Aim Point
- halo9909
- · Replies 5 ·
How Fast Was the Steel Ball Rolling?
- halo9909
- · Replies 1 ·
Minimum uncertainty in speed when position uncertainty equals de Broglie wavelength
- MrDMD83
- · Replies 2 ·
100 kg box pulled with position x = 0.5t³ + 2t
- dbb2112
- · Replies 20 ·
Energy and momentum - pendulums
- FrenchAtticus
- · Replies 1 ·
Total energy of a rolling sphere
- pucr
- · Replies 2 ·
Auto sliding off mountain road into snow
- halo9909
- · Replies 1 ·
How do virtual and real objects affect the image formed by multiple lenses?
- Gear300
- · Replies 18 ·
Solving for Height and Distance: Janet's Displacement Speed Calculation
- halo9909
- · Replies 1 ·
Calculating Kinetic Energy & Speed of a Thrown Yo-Yo: Physics Problem Help
- matt62010
- · Replies 1 ·
Finding the pan's distance from the ceiling
- jheld
- · Replies 14 ·
Finding acceleration direction in two-dimensional motion
- lanvin
- · Replies 2 ·
Gravitation (Preliminary Reference Earth Model)
- ceomtcl
- · Replies 2 ·
How Can I Find the Center of Gravity for a Uniformly Distributed Mass?
- bmandrade
- · Replies 1 ·
How to Calculate Maximum Jump Height with Given Variables
- FrenchAtticus
- · Replies 2 ·
Gravitational acceleration inside a uniform sphere
- Superfluous
- · Replies 6 ·
Finding closest approach distance for meteor deflected by sun's gravity
- DD31
- · Replies 2 ·
Quick error propagation problem
- mjolnir80
- · Replies 2 ·
Where should mass B be placed for rotational equilibrium?
- bmandrade
- · Replies 11 ·
Two disks with different moments of inertia rotating on a common shaft
- lmc489
- · Replies 1 ·
Calculating Young's Modulus for a Wire
- JJones_86
- · Replies 3 ·
Conceptual question on simple harmonic motion
- xregina12
- · Replies 3 ·
Calculate the translational speed of a cylinder
- Bones
- · Replies 6 ·
Relationship between counterclockwise and clockwise torque at equilibrium
- xlaserx7
- · Replies 2 ·
What is the difference in lever arms between two people on a seesaw?
- xlaserx7
- · Replies 1 ·
Finding Velocity of a ball hitting a ball hanging from a string
- jheld
- · Replies 2 ·
Thermo - mixing water in a container.
- Thyferra2680
- · Replies 1 ·
Calculating Work for Satellite Orbits Around Earth
- cobrasny
- · Replies 3 ·
Centre of mass and translational motion
- godwinscareer
- · Replies 3 ·
Rate of Change of the Angle of Elevation
- pippintook
- · Replies 1 ·
Power of a Transverse wave question
- ultrapowerpie
- · Replies 20 ·
How Far Can a Coin Be Placed on a Rotating Record Without Slipping?
- pucr
- · Replies 3 ·
Question concerning Michelson stellar interferometer
- arrektor
- · Replies 2 ·
What is an inertial frame of reference?
- alpha372
- · Replies 3 ·
Moment of inertia integral for a cube about its center
- fluidistic
- · Replies 4 ·
Work done by gravity on a thrown ball
- reaperkid
- · Replies 5 ·
Angular Momentum Problem formula
- blue-steel
- · Replies 2 ·
North of west vs west of north in vector components
- amd123
- · Replies 2 ·
Formula One Relating to the Combined Gas Law
- heggs954
- · Replies 1 ·
Relationship between force magnitude and lever arm distance
- xlaserx7
- · Replies 4 ·
Dispersion through an equilateral prism
- SteveM-
- · Replies 2 ·
Verifying the Accuracy of a Gun Aimed at a Falling Target
- TITO09
- · Replies 3 ·
How to find angular acceleration
- itsmarasilly
- · Replies 1 ·
A simple yet tricky pendulum problem
- Mr.P
- · Replies 4 ·
Energy in a vertical spring mass system
- S.A
- · Replies 2 ·
Calculating Power Output of a Weightlifter
- lonlyincolleg
- · Replies 2 ·
What is the final velocity of mass
- Inertialforce
- · Replies 1 ·
Air pressure at the centre of a category 5 hurricane using Bernoulli's theorem
- lmohamed2008
- · Replies 2 ·
Finding Reactionary Forces on a Beam with Distributed Load
- koolsid
- · Replies 7 ·
2D momentum ( in understanding, but have the answer)
- Elbobo
- · Replies 4 ·
Bragg scattering angle for thermal neutrons in crystal
- getcarter
- · Replies 1 ·
Bowling Ball Slipping and Rolling: Analyzing Acceleration
- jnimagine
- · Replies 1 ·
How Does Self Inductance Affect Current Over Time in an R-L Circuit?
- TFM
- · Replies 18 ·
Calculating Force and Acceleration in Circular Motion Problem
- phys1618
- · Replies 3 ·
Nuclear reaction/binding energy problem? Year 11 physics, so its fairly simple.
- caitie_72
- · Replies 1 ·
Terminal Velocity and Resistive Forces problem
- cheese825
- · Replies 1 ·
Magnetic flux through rotating coil charging a capacitor
- bcjochim07
- · Replies 2 ·
How do i find the radius of this path
- devanlevin
- · Replies 14 ·
Hockey player catching opponent with acceleration
- cbrowne
- · Replies 13 ·
Finding a common angular velocity
- lmc489
- · Replies 3 ·
How Do You Calculate Tire Pressure Without a Gauge?
- Jeff231
- · Replies 1 ·
What is the power input at time t=3s for the force of 5N on an 8kg object?
- nns91
- · Replies 5 ·
Significant figures when adding and multiplying with scientific notation
- chemic_23
- · Replies 3 ·
How Much Energy Is Required to Launch a Satellite into Orbit?
- crr2010
- · Replies 3 ·
Carnot engine efficiency and exhaust problem
- lzh
- · Replies 2 ·
How Does Gravity Affect the Maximum Height of a Thrown Ball?
- needhelp?
- · Replies 1 ·
How Do You Calculate Speed at the Bottom of a Hill Considering Friction?
- lonlyincolleg
- · Replies 3 ·
Intensity of Near-Infrared Spectroscopy Laser
- creative_wind
- · Replies 7 ·
Find the period of the resulting swings of this pendulum
- anubis01
- · Replies 2 ·
Error Propagation: Calculating Puck's X-Velocity
- asleight
- · Replies 3 ·
What Determines the Dynamics of a Sled on a Frictionless Hemispherical Hill?
- XJellieBX
- · Replies 1 ·
How far does the car travel before stopping?
- collegegirl
- · Replies 1 ·
Coefficient of static friction of crate
- collegegirl
- · Replies 3 ·