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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Displacement Calculations for Canadian and Norwegian Skiers
- tarun766
- · Replies 6 ·
What forces act on the suspended mass and is it in motion?
- AeroVector
- · Replies 1 ·
How Do You Isolate Δt in the Kinematic Equation?
- kencamarador
- · Replies 3 ·
When to use centripetal vs. radial acceleration
- fredrogers3
- · Replies 10 ·
Understanding Heat Transfer in a Ice-Water System
- KylieB
- · Replies 2 ·
How long until a police car catches a speeding car at 41.66 m/s?
- Zashmar
- · Replies 6 ·
Relationship: Force on a charge at some distance from capacitor Plates
- Minhtran1092
- · Replies 1 ·
Relative velocity at a junction
- Woolyabyss
- · Replies 8 ·
Why is the wavelength 4L instead of 2L for a string fixed at one end?
- PhizKid
- · Replies 3 ·
Static friction and fraction of mass of rope that can hang.
- chiuda
- · Replies 1 ·
The Compton Effect: Find the angles of scattered photon and electron
- amr55533
- · Replies 2 ·
Dynamics Problem (suitcase pulled across floor find Fn)
- chiuda
- · Replies 7 ·
How Do Horizontal Components Affect Total Tension in a Spring Balance?
- Member69383
- · Replies 9 ·
Explain to me Step Functions for VT graphs
- kencamarador
- · Replies 3 ·
Projectile motion problem (find angle theta)
- 5ymmetrica1
- · Replies 3 ·
How Do You Solve a 1-D Motion Kinematics Problem Involving a Missile?
- dazed6531
- · Replies 3 ·
Moment of inertia for rod with sphere attached
- cp255
- · Replies 2 ·
Statics, bike on inclined plane
- jonjacson
- · Replies 12 ·
Current in a rectangle on a hinge
- lodovico
- · Replies 3 ·
Translating motion graphs. Dt to vt
- kencamarador
- · Replies 2 ·
Probability of finding a particle between x=0 and x=0.2 nm in a 1 nm box
- ahhppull
- · Replies 8 ·
Acceleration directions and friction.
- SaxonMilton
- · Replies 7 ·
(2D problem) What angle will yield maximum horizontal range?
- physics1829
- · Replies 8 ·
Turning wheel, simply angular momentum
- Ground State
- · Replies 5 ·
Angular acceleration of a frictionless pulley system with cylinders
- Ground State
- · Replies 3 ·
How to find acceleration given two masses , an angle ,and kinetic fric
- Sneakatone
- · Replies 19 ·
Cyclotron: magnetic field for 140 MeV alpha particles and time to exit
- CAF123
- · Replies 6 ·
Plate conductor in electrostatic equilibrium
- member 392791
- · Replies 1 ·
Does Tailwind Affect Airplane Speed Based on Size or Mass?
- lep11
- · Replies 4 ·
Direction of Torque on Parallel Wires with Current
- Gee Wiz
- · Replies 2 ·
Energy question with constant velocity
- Jabababa
- · Replies 7 ·
How Do You Calculate Average Induced Voltage in a Changing Magnetic Field?
- bsugeology
- · Replies 7 ·
Calculating Electric Flux Density in a Dielectric Material
- Nikitin
- · Replies 6 ·
Rider launches at 30° from 1m height, airborne for 1s
- Sam Fred
- · Replies 3 ·
De Borglie's wavelength equation
- athymy
- · Replies 11 ·
Which Material is Best for a Milkshake Straw?
- Ransomed
- · Replies 2 ·
Find the value of aerodynamic constant C for this dimpled sphere.
- Sneakatone
- · Replies 6 ·
Why do textbooks inconsistently apply significant figure rules?
- babysnatcher
- · Replies 5 ·
Acceleration with Velocity Problem.
- kencamarador
- · Replies 4 ·
Average speed of person walking
- babysnatcher
- · Replies 1 ·
Ballistic Pendulum initial velocity of bullet
- MathHelpa
- · Replies 2 ·
Ohm's Law, Resistance, and Power
- jperentosh
- · Replies 6 ·
Capacitor charge in parallel RC circuit
- woaname
- · Replies 4 ·
Uncertainties in fluid viscosity experimental trials
- physicsdude123
- · Replies 4 ·
Top view of a Gaussian surface in a uniform electric field
- brojas7
- · Replies 1 ·
Three problems on elastic collisions and energy conservation
- PhilliesFan
- · Replies 2 ·
What is the force of the floor on her feet?
- x86
- · Replies 11 ·
Stone dropped from bridge, second stone thrown to reach ground together
- jayjay55531
- · Replies 3 ·
Finding phi constant based on initial position and initial velocity
- InvalidID
- · Replies 5 ·
Vapor-compression refrigeration cycle
- zircons
- · Replies 3 ·
Find unknown voltage source in circuit with 4 resistors
- resigned
- · Replies 2 ·
0 Electric potential between point charges?
- blazen2392
- · Replies 4 ·
Calculating Gravitational Potential Energy Increase: 3.0kg Object
- Jabababa
- · Replies 4 ·
Find number of trials to be done to get specified uncertainty?
- sloane729
- · Replies 5 ·
Time for galaxy cluster to pass through another at relativistic speeds
- dom139
- · Replies 3 ·
Magnetic field motion different scenario
- woaname
- · Replies 16 ·
Work done to pull the entire chain
- deep838
- · Replies 5 ·
The Bohr-Rutherford Model of Hydrogen
- pakqft
- · Replies 1 ·
Projectile motion problem - tennis player hits a ball
- 5ymmetrica1
- · Replies 7 ·
Special Relativity and spaceships
- pakqft
- · Replies 5 ·
Finding current in a circuit with a 3V source
- nchin
- · Replies 32 ·
What Are Frequency of Beats and Effective Frequency in Wave Interference?
- InvalidID
- · Replies 3 ·
How Do You Simulate a Binary Star System with VPython?
- besjbo
- · Replies 12 ·
How is equation 15.14 derived in the wave speed derivation?
- Fluxthroughme
- · Replies 3 ·
Finding the Electric Field Outside of a Spherical Shell Using Gauss's Law
- skate_nerd
- · Replies 3 ·
Mass dropped onto vertical spring what is the max compression?
- MathHelpa
- · Replies 2 ·
How Do You Calculate Velocity in Calculus-Based Physics?
- student34
- · Replies 3 ·
Sign convention error in parallel resistor circuit analysis
- nchin
- · Replies 5 ·
Find distance electron travels before turning around
- penguinnnnnx5
- · Replies 16 ·
Why are there two different equations for normal force on an angle?
- student34
- · Replies 5 ·
Finding the coefficient of friction
- theeggwoman
- · Replies 1 ·
Velocities of colliding particles (Kinetic and Potential Enegies)
- 14dfg
- · Replies 3 ·
Why is the normal force included in this plane's minimum radius problem?
- sakura741
- · Replies 11 ·
Vector Scalar or Not Applicable?
- Stanc
- · Replies 1 ·
How Does Wind Affect an Airplane's Flight Path and Speed?
- Stanc
- · Replies 1 ·
Cartesian 3D Vector Plotting Points?
- Stanc
- · Replies 3 ·
How Old Should You Be To Learn Calculus
- lch7
- · Replies 1 ·
Finding work done by downward force and increase in thermal energy
- rockchalk1312
- · Replies 1 ·
What is the maximum mass of the ring in a beads sliding down a ring problem?
- Platformance
- · Replies 18 ·
Calculate when displacement are equal
- ahmedb
- · Replies 12 ·
Centripetal Force and Uniform Circular Acceleration
- roberttk01
- · Replies 3 ·
Tangential and Radial components of acceleration and tension
- Eohlas
- · Replies 3 ·
How we measure magnetic disturbances?
- stavrospao
- · Replies 5 ·
Calculating Forces on a Charged Particle in a Magnetic Field
- woaname
- · Replies 14 ·
Calculating Electromotive Force in a Circuit
- joel amos
- · Replies 5 ·
What are the Currents in a Multi-Level Parallel Circuit with 6 Leads?
- joel amos
- · Replies 5 ·
Derive Formula for Final Velocity (v2) Without Time
- NeedBetterName
- · Replies 5 ·
What is the role of atmospheric refraction in a sunset?
- cris9288
- · Replies 2 ·
Finding Forces in a 2D Bridge: Determining Pressure and Tension
- Numeriprimi
- · Replies 5 ·
What Is the Net Force and Electric Field on Charge 1?
- waleed.ahmed
- · Replies 3 ·
Motion in fields - Space Shuttle orbiting the Earth
- KrisG
- · Replies 1 ·
Particle in Simple Harmonic Motion
- Willjeezy
- · Replies 3 ·
Temperature of filament using its area, power, and emissivity
- Fluxthroughme
- · Replies 8 ·
How Do You Determine the Natural Abundance of 244Hb and 240Hb?
- Eddzzz
- · Replies 2 ·
Solving Kinetic Friction: Find Coefficient of Friction from Car Stop
- mels
- · Replies 3 ·
Why Does Rotating the Michelson-Morley Apparatus Alter the Time Delay?
- BareFootKing
- · Replies 10 ·
Speed of Jet Plane - Solving the Problem
- Von Neumann
- · Replies 3 ·
Frictional force on a block held against a vertical wall
- freddyeddyjor
- · Replies 4 ·
How Is Efficiency Calculated for a Carnot Engine with Given Cycle Parameters?
- Von Neumann
- · Replies 5 ·
Suspended charged balls with Coulomb force and small angles
- asdf12312
- · Replies 23 ·