Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
How to Calculate Impedance in an AC Circuit with Series Components?
- 9.8m*s^-2
- · Replies 3 ·
Calculating Mass of a Long Thin Rod
- juggalomike
- · Replies 2 ·
Calculating Flight Direction & Velocity: Bush Pilot Flying 250.0 km [N30.0°E]
- malcomfred
- · Replies 2 ·
Circuitry Question: Solve Unknowns V1, V2, V3, i1, i2, i3, i4
- VJ_1991
- · Replies 10 ·
What is the Spring Constant of a Gun Fired Ball?
- boogaaaaa
- · Replies 4 ·
Calculating Angular Speed with a Running Person on a Rotating Disk?
- mparsons06
- · Replies 1 ·
How Is the Rocket's Acceleration Calculated After the Parachute Opens?
- TyErd
- · Replies 7 ·
Uncertainties in the momentum and kinetic energy of the proton?
- Physics321
- · Replies 1 ·
Rotational to linear kinetic energy
- Daniiel
- · Replies 8 ·
Simple Harmonic Motion Solving for the phase and applying it.
- Wm_Davies
- · Replies 8 ·
Standing Waves on a String (Melde's Experiment)
- CHurst5841
- · Replies 3 ·
Changes in energy w/ coefficient of friction
- chrisPHYSICS
- · Replies 1 ·
Do FM and AM Radio Stations Emit Different Numbers of Photons?
- dirtywater101
- · Replies 3 ·
How Do You Calculate Frictional Force and Slippage on a Ladder?
- mybrohshi5
- · Replies 2 ·
Gravitational Force as a vector
- karadda
- · Replies 4 ·
Rigid Body Momentum - Calculate Velocity
- fball558
- · Replies 5 ·
Harmonic motion with friction x(t)=
- live4physics
- · Replies 1 ·
What is the Solution for Dynamics with Bounces?
- elitewarr
- · Replies 5 ·
What is the formula for balancing charges in Coulomb's law and gravity?
- leroyjenkens
- · Replies 11 ·
Explaining Motion Under Gravity: Height & Velocity
- manzoor
- · Replies 13 ·
Special Relativity: Energy and Mass
- Battlemage!
- · Replies 4 ·
Conservation of Energy Ice Cube Problem
- bcjochim07
- · Replies 4 ·
Fitting Nonlinear Data to a Linear Equation: Manual Calculation Process
- Doctor_Doom
- · Replies 2 ·
What is the actual size of the frictional force
- mybrohshi5
- · Replies 6 ·
What is the increase in kinetic energy during an atomic nucleus disintegration?
- albinoboy
- · Replies 1 ·
Vector Potential of Long Solenoid
- malindenmoyer
- · Replies 1 ·
Simple harmonic motion and amplitude
- Dotty21690
- · Replies 4 ·
Moment of inertia/distribution of mass [conceptual/experimental]
- anti404
- · Replies 1 ·
Calculate the electric potential at the center of the hexagon
- noob314
- · Replies 8 ·
How Is EMF Induced in a Coil When a Magnetic Field Changes?
- Linus Pauling
- · Replies 1 ·
Current Through Resistor in Rectangular Loop
- malindenmoyer
- · Replies 5 ·
What are the forces and torques acting on the masses and pulley in this system?
- lockedup
- · Replies 1 ·
Find the net torque on the pulley
- mybrohshi5
- · Replies 1 ·
What is the correct spring constant for the bungee cord?
- TyErd
- · Replies 1 ·
Working on high voltage power lines
- JJBladester
- · Replies 4 ·
Solve Physics, Chemistry & Math Problems - Grade 10
- The legend
- · Replies 3 ·
De Broglie wavelength of a neutron
- Physics321
- · Replies 1 ·
Describing Image of a Bi-Concave Lens with n=1.5
- fluidistic
- · Replies 4 ·
Kinetic energy, force, rotation
- mybrohshi5
- · Replies 3 ·
Electric Current: All Types Explained
- cathole
- · Replies 2 ·
Potential Energy and upper limits
- umdece4
- · Replies 1 ·
What is the rotational inertia of the pole
- mybrohshi5
- · Replies 3 ·
Question about magnetism/induced emf in small coil
- nwyatt
- · Replies 2 ·
Torque on a Pulley with two weights
- Quincy
- · Replies 6 ·
Thermodynamics (please state working)
- hod032
- · Replies 9 ·
How Do You Calculate the Potential Difference Between Two Points in a Circuit?
- abcdmichelle
- · Replies 1 ·
Solving Simple Harmonic Motion Problem with Energy
- Glorzifen
- · Replies 2 ·
Angle of incidence, angle of refraction and angle of reflection
- shimizua
- · Replies 1 ·
Magnet, wire, earth's magnetic field
- thermocleanse
- · Replies 11 ·
Solving Simple Pendulum Homework: Find the Amplitude & Phase Angle
- cdotter
- · Replies 1 ·
How Much Heat Is Required to Convert 3kg of Ice at -9°C to Steam?
- lenarass
- · Replies 1 ·
Physics gravitational questioon
- crystal5428
- · Replies 3 ·
Is the Fracture Energy Equation for Ice Valid?
- lewisd18
- · Replies 1 ·
Really ANNOYING dynamics problem, HELP
- altherik
- · Replies 1 ·
Solving Displacement of Mass on Spring at v=1m/s
- Glorzifen
- · Replies 3 ·
Explain me concept (Fluid Mechanics)
- snshusat161
- · Replies 3 ·
Solving Buoyancy Problem: Ball Emerges from Water Surface
- Hitman6267
- · Replies 2 ·
Ampere's Law and straight wires
- krtica
- · Replies 2 ·
Find their velocities after the collision
- Student91
- · Replies 1 ·
Confused about physics of freefalling (through sky)
- xchococatx
- · Replies 12 ·
What is the required force to push a box up a slippery ramp?
- luysion
- · Replies 4 ·
Is the force of gravity a function of a planet's orbit?
- phantomcow2
- · Replies 19 ·
Wavelength of sound waves and speed of sound in air column
- jand
- · Replies 1 ·
Why Does Integrating Current Over Time Equal the Initial Charge of a Capacitor?
- Puchinita5
- · Replies 1 ·
Is This Physics Exam Question Too Challenging for Pre-Med Students?
- lew0049
- · Replies 10 ·
Kinetic Energy in Rotational Motion Problem
- itsme24
- · Replies 3 ·
How Do You Calculate the Forces Acting on Grandma and Her Chair?
- starprincess
- · Replies 1 ·
SHM Question - starting at x=A, find when passes through x=0
- Glorzifen
- · Replies 3 ·
Oscillating series RLC circuit
- reising1
- · Replies 1 ·
Temperature Change: Convert 29°F to C and K
- planke
- · Replies 1 ·
Torque and Force of diving board
- mybrohshi5
- · Replies 24 ·
Measuring Mass of DNA Using a Vibrating Cantilever
- snoworskate
- · Replies 2 ·
Which Spring Has a Larger Displacement?
- smhippe
- · Replies 3 ·
Thermal Expansion Calculation for a Rod Made of Alloy
- lew0049
- · Replies 5 ·
Angular Speed Between 2 rims attached by a belt
- dimmermanj
- · Replies 1 ·
Wavelength of light (air vs. water)
- bullroar_86
- · Replies 7 ·
What is the speed of Betty on a playground swing?
- sonic91
- · Replies 2 ·
Calculating Mass, Force, and Acceleration of a Car
- xdeanna
- · Replies 5 ·
Calculating Electric Field Strength and Acceleration in a Coulombic System
- llama0lover
- · Replies 3 ·
LC Circuit Maximum Charge Problem
- reising1
- · Replies 6 ·
How Accurate Is the Calculated Velocity of a Free Falling Tennis Ball?
- luysion
- · Replies 3 ·
Ray transfer matrix method, I need explanations
- fluidistic
- · Replies 1 ·
Calculating Moment of Inertia for a Soldered Wire Wheel
- Quincy
- · Replies 3 ·
Calculating Electric Force: Magnitude and Distance | Electric Field Problem
- zelda1850
- · Replies 2 ·
Method of images& half a sphere
- Ellyl
- · Replies 1 ·
How do you multiply rational equations with multiple numerators?
- JerryClower
- · Replies 3 ·
Finding Ek with force, mass, and time.
- rowkem
- · Replies 1 ·
Simple Newtonian mechanics problem
- ENgez
- · Replies 14 ·
How Do You Calculate the Refractive Index from Water to Glass?
- reyaz1
- · Replies 3 ·
Solving for Fluid Density: A 2.0 kg Iron Block
- chara76
- · Replies 3 ·
Calculating Magnetic Flux Through a Loop
- cindimartini
- · Replies 3 ·
How to find the maximum voltage that can be placed across a capacitor.
- squintyeyes
- · Replies 2 ·
Flux and Nonconducting Shells: What are the Net Charges of Shell A and Shell B?
- seraphimhouse
- · Replies 3 ·
Calculating Average Error Uncertainty from a Large Set of Data
- hhhmortal
- · Replies 3 ·
Electric Circuit. Norton Equivalent current
- Hitman6267
- · Replies 4 ·
Calculating Work Done by a Variable Force
- smhippe
- · Replies 10 ·
Calorimetry problem and temperature
- crosbykins
- · Replies 4 ·
Falling Particle: Solving for Initial Velocity and Acceleration
- sudec
- · Replies 1 ·
SHM Homework: Bullet-Block Collision on Frictionless Surface
- yang09
- · Replies 21 ·
Very Relativity problem(True or False)?
- SAT2400
- · Replies 2 ·