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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Work in thermodynamic processes
- roam
- · Replies 11 ·
How to Determine the Rate at Which a Battery Stores Chemical Energy?
- cyy91
- · Replies 2 ·
Engine efficiency between water's boiling and freezing points
- jumoo32
- · Replies 4 ·
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 ·
Bush pilot flying 250 km [N30°E] with 40 km/h wind from west
- malcomfred
- · Replies 2 ·
Finding voltages and currents in a circuit with two batteries
- 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 ·
Why is gravitational acceleration negative in kinematic equations?
- 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 ·
Where to find free grade 10 physics, chemistry and math practice problems
- 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 ·
Do all these movements of charged particles count as electric current?
- cathole
- · Replies 2 ·
Potential Energy and upper limits
- umdece4
- · Replies 1 ·
What is the rotational inertia of the pole
- mybrohshi5
- · Replies 3 ·
Induced emf in small coil inside solenoid after current cutoff
- nwyatt
- · Replies 2 ·
Torque on a Pulley with two weights
- Quincy
- · Replies 6 ·
Heat transferred in Stirling engine cycle at 0.8 Hz
- 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 ·
Identifying angle of incidence, refraction and reflection from a diagram
- shimizua
- · Replies 1 ·
Magnet, wire, earth's magnetic field
- thermocleanse
- · Replies 11 ·
Finding amplitude and phase angle for a spring-mass system
- 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 ·
Finding velocity in rotating reference frames problem 14
- 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 ·
Physics of a 54 kg person falling from the 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 ·
Friction coefficient for sled sliding down a 2 m high, 5 m base hill
- 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 ·
Force on electron in uniform field between parallel plates
- zelda1850
- · Replies 2 ·
Method of images for charge near grounded sphere and plane
- 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 ·
Man pulling himself up on platform with ropes and pulleys
- 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 ·
Work done by force F = (3x)x̂ - 2ŷ from origin to (2, 3)
- smhippe
- · Replies 10 ·
Calorimetry problem and temperature
- crosbykins
- · Replies 4 ·