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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Solving Wave Equation with D'Alembert: Step by Step
- bon
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FLUIDS-how far from dam base does stram hit ground
- ricky882
- · Replies 2 ·
Just a quick conceptual question
- psilovethomas
- · Replies 2 ·
Projectile, and uniform circular motion questions
- reverse
- · Replies 10 ·
What is the Charge Distribution on Concentric Spherical Shells?
- veronicak5678
- · Replies 4 ·
Two damped pendulums with different masses.
- TheTourist
- · Replies 1 ·
What Is the Correct Way to Calculate Resistance in This Circuit?
- Lord Dark
- · Replies 4 ·
Find the change in kinetic energy of the car
- hcps-chent1
- · Replies 7 ·
Calculating Current for .75T Solenoid (4300 turns, 38cm long)
- matt72lsu
- · Replies 3 ·
Ball's Acceleration: How to Calculate with Initial and Final Time and Height
- mohdakram
- · Replies 4 ·
Angle and Range of Projectile Motion
- tharindu
- · Replies 1 ·
Schrodinger equation and hydrogen atom
- quietrain
- · Replies 2 ·
Problem With Maximum Acceleration up Hill
- olski1
- · Replies 5 ·
Understanding Simple Harmonic Motion: Period Calculation for a Uniform Rod
- semc
- · Replies 6 ·
How do I rearrange the equation to solve for 'M'?
- Dark_Dragon
- · Replies 7 ·
The gold leaf electroscope and the photoelectric effect
- zoya76
- · Replies 3 ·
Estimate Mass of Sun Using G, Distance and Speed
- lemon
- · Replies 4 ·
Calculating Capacitance of Concentric Spherical Shells
- BustedBreaks
- · Replies 8 ·
What height does the projectile reach when factoring in friction force?
- mtnbiker45
- · Replies 6 ·
How Much Force Stops a Hailstone Mid-Damage?
- HeyyMarco
- · Replies 3 ·
Combined gravitational field strength
- superaznnerd
- · Replies 1 ·
Changes in Mechanical Energy for non-conservative Forces Problem
- RB_Physics
- · Replies 3 ·
Normal modes of a string NEED HELP
- suyoon
- · Replies 9 ·
Solving the Physics of a Curling Stalemate
- Soulsteppa90
- · Replies 9 ·
Current in a wire and compass needle
- choco_moo
- · Replies 1 ·
How Can a Wire Carrying Current Be an Equipotential Surface?
- maccha
- · Replies 1 ·
How Far Beyond the Fence Does the Ball Land?
- shane99a
- · Replies 2 ·
What Is the Correct Maximum Spring Constant for a Delivery Ramp Design?
- Quincy
- · Replies 1 ·
Need Physics Senior Project ideas
- Mange
- · Replies 2 ·
Calculating Collision Forces: Impact of a Head-On Collision on Car
- Richardbro
- · Replies 1 ·
Magnetic Field and range of potential energy
- anonymousphys
- · Replies 1 ·
Understanding Torque in a Metal Coil with Magnetic Field
- anonymousphys
- · Replies 7 ·
Sinusoidal Waves: Why Is Textbook Answer 1.5ym?
- Nyasha
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What is the Relationship Between Resistance and Current in a Resistor?
- lha08
- · Replies 6 ·
Finding Area Moment of Inertia for Axis 33 to X-Axis
- rock.freak667
- · Replies 1 ·
How Much Force Do Elbow Ligaments Exert in Javelin Throwing?
- luysion
- · Replies 1 ·
Solving DC Circuits Power Question: 15 Amps, 220 Volts
- Flaneuse
- · Replies 2 ·
What is the Work-Energy Theorem for a Skier Crashing into Netting?
- kylepetten
- · Replies 2 ·
Is this the right equation to use?
- magnifik
- · Replies 1 ·
How Do You Calculate Reaction Forces in Equilibrium Problems?
- tfox
- · Replies 1 ·
Gravity Equation: Prob 3. Solving Force in Inclined Plane
- patricoles
- · Replies 2 ·
Two energy problems I do not understand
- jefgreen
- · Replies 2 ·
Conservation of momentum with a spring
- magnifik
- · Replies 1 ·
When Does a Capacitor Charge Linearly?
- anonymousphys
- · Replies 1 ·
How Does Oscillation Affect Capacitor Voltage After Multiple Cycles?
- thereddevils
- · Replies 3 ·
Shawn's Kinetic Energy: 45kg at 3m/s for 1800m
- jefgreen
- · Replies 6 ·
Hydrostatic pressure, and force
- Dell
- · Replies 1 ·
What is the minimum velocity needed for a tennis ball to pass through the net?
- Brunno
- · Replies 25 ·
Series and Parallel Connections
- lha08
- · Replies 3 ·
A point charge in a sphere with V0
- rootX
- · Replies 4 ·
Which Punter's Kick Has the Longest Hang Time?
- Tearsandrille
- · Replies 1 ·
Verifying Gauss' Law: Homework Statement Solutions
- ryukyu
- · Replies 5 ·
Bowling Ball Question 1: Solving for Skidding Time and Distance
- j126
- · Replies 3 ·
Problems with Newton's third Law
- Groat
- · Replies 3 ·
Question that neither my teacher nor tutor could do (Grade 12 Physics)
- s3a
- · Replies 20 ·
Finding the mass of the sun from T^2/R^3
- Sirsh
- · Replies 4 ·
Calculating Distance from Moon's Centre for Gravitational Field Change
- Dark_Dragon
- · Replies 2 ·
How Does Copper Wire Shape Affect Magnetic Flux Density?
- ryukyu
- · Replies 1 ·
Resistance experienced by capacitors in circuit
- thereddevils
- · Replies 3 ·
Plane falling from air, mechanical physics, need push in right direction
- multocco
- · Replies 1 ·
How Long Would It Take for a Water-Composed Earth to Heat from 40°C to 90°C?
- tanzerino
- · Replies 2 ·
What is the maximum model rocket altitude?
- Paymemoney
- · Replies 20 ·
Kinetic Theory of Gases Average question
- sponsoredwalk
- · Replies 4 ·
Acceleration, Velocity and Position (calculus)
- adoado
- · Replies 10 ·
Solve Projectile Motion: Arrow Fired Horizontally at 41m/s
- Paymemoney
- · Replies 3 ·
Does the Electric Field Change in Different Metals of a Circuit?
- maccha
- · Replies 1 ·
Compute flux through rectangular area
- EV33
- · Replies 5 ·
Gravitational Near Earth Surface.
- asdf122345
- · Replies 1 ·
Projectile Trajectory: Why Does the Angle of Fire Remain Constant?
- squash
- · Replies 4 ·
Solving Node Voltage: Va = Vb x R1/(R1+R0)
- 385sk117
- · Replies 2 ·
How Far Does a 15 kg Object Travel Under Specific Forces in 4 Seconds?
- emmuuhhlee
- · Replies 1 ·
Find the binding energy of hydrogen
- warfreak131
- · Replies 10 ·
Calculating Rate Of Separation Between Two Arcs
- Badmachine
- · Replies 3 ·
Force of Friction in rolling motion without knowing r
- snoworskate
- · Replies 2 ·
E field at a point between two rings
- Linus Pauling
- · Replies 2 ·
Orbital Mechanics - effect of thrust on v, R, a
- awygle
- · Replies 1 ·
Basic integration identity- please jog my memory
- Oscur
- · Replies 3 ·
Relative Velocities: Plane Displacement from City in 2h Time
- slpnsldr
- · Replies 4 ·
RC circuit - charge on capacitor after a long time
- Linus Pauling
- · Replies 1 ·
How Do You Calculate Energy Changes in Water Phase Transitions?
- stupefy07
- · Replies 1 ·
Electric Field Direction at Origin: Cancel or Enhance on x-axis?
- acherentia
- · Replies 5 ·
Applying Kirchoff's Rule: Solving for Unknown Quantities in a Circuit
- Petey_Smalls
- · Replies 1 ·
Magnetic field of long parallel straight wires
- sweetdion
- · Replies 3 ·
Magnetic fied at center of semicircle Ampere's Law Biot-Savart Law
- sweetdion
- · Replies 11 ·
Grounding Wire: Preventing Current Flow & Circuit Breakdowns
- maccha
- · Replies 1 ·
Focal Length of Lens: Object 5 cm Tall, 10 cm Away
- dev-hud
- · Replies 1 ·
Solving Plane Mirror Question: How Far is the Flagpole?
- dev-hud
- · Replies 1 ·
How Does Energy Change When a Ball is Dropped?
- SoulInNeed
- · Replies 17 ·
Calculating the Velocity of a Proton using Magnetic Field and Electric Charge
- jhexp
- · Replies 1 ·
How Do You Calculate the Tension in a Rope with a Person Midway Across?
- chica-88
- · Replies 1 ·
How to Calculate Impulse and Time for Moving a Bronze Statue?
- Jayson5
- · Replies 2 ·
How Do Magnetic Fields Influence Needle Behavior in Scientific Experiments?
- qomoco
- · Replies 2 ·
Understand Switches & Current Flow in Circuits
- maccha
- · Replies 6 ·
Visualizing the Motion of Two Crossing Wires
- 05holtel
- · Replies 4 ·
Maximizing Velocity in Uniformly Accelerated Motion
- jh128273
- · Replies 4 ·
Find Angle (theta) Given Displacement & Aircraft Velocity
- integra2k20
- · Replies 4 ·
Find Ratio r of R1/R2 in Two-Resistor Circuit
- Yaaaldi
- · Replies 4 ·
Final speed of a rotating spaceship
- Susanne217
- · Replies 1 ·
What Is the Maximum Acceleration a Cross-Country Skier Can Achieve Uphill?
- olski1
- · Replies 1 ·
Charge of a segment of an infintely long wire
- Linus Pauling
- · Replies 1 ·