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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How Do Newton's Laws Apply to Pushing a Lawn Mower?
- seizureboi
- · Replies 4 ·
Two Speakers - Sound Maximum and Sound Minimum Problem
- davichi
- · Replies 2 ·
Simple Harmonic Motion (Person gets into car)
- ThereIam
- · Replies 1 ·
Question about direction of heat
- Biloon
- · Replies 1 ·
Time period formula-proof required
- IB1
- · Replies 4 ·
What is the Electric Flux Through a Cube and How Can it be Calculated?
- SuperCass
- · Replies 3 ·
How Is the Distance of 262m Calculated for a Particle Accelerating from Rest?
- profcocoon
- · Replies 1 ·
Frictional Force & Normal forces
- onyxorca
- · Replies 7 ·
Physics question on absolute pressure?
- delfinofrank
- · Replies 4 ·
Are These Statements About Vectors True or False?
- mullets1200
- · Replies 1 ·
Grade 11 Physics: Troubleshooting Parts C and D
- Shaley
- · Replies 1 ·
Calculating Jupiter's Mass from Orbital Data
- BoldKnight399
- · Replies 7 ·
Calculate the work down by the force on the object
- Shaley
- · Replies 1 ·
Why Doesn't Calculating Chord Slope Work for Electron Deflection Angles?
- maccha
- · Replies 1 ·
Did I Calculate the Centripetal Force of the Earth Correctly?
- BoldKnight399
- · Replies 3 ·
Trouble with multiple-current circuit diagram problems.
- QuietQuasar
- · Replies 1 ·
Oblique Elastic Collision Angle Calculation
- kingjoshie
- · Replies 2 ·
Projectile Trajectory (I'm confused about the lab report)
- bedizzy
- · Replies 5 ·
How Do You Calculate Forces on a Parked Car on an Incline?
- xiaoren
- · Replies 6 ·
A wave speed of a hanging chain
- Gravitino22
- · Replies 4 ·
Solve Vector Problems: Displacements & Components | Find r, Angle, & Components
- noname1
- · Replies 1 ·
How Long Does a Cliff Diver Stay Over Water During Their Dive?
- Badrakhandama
- · Replies 16 ·
Stone Throw Kinematics Question
- Procrastinate
- · Replies 1 ·
The percentage of carbon dioxide in the air
- Beez
- · Replies 5 ·
The Information of O178: What Can We Learn?
- look416
- · Replies 4 ·
How Do You Calculate the Speed of an Arrow Shot Horizontally?
- mybrohshi5
- · Replies 12 ·
Dispersion of light and temperature
- nilic1
- · Replies 1 ·
Center of Gravity of a Hiker and Backpack
- M_G
- · Replies 15 ·
Calculating Electric Field of a Uniformly Charged Spherical Shell
- haha
- · Replies 1 ·
Falling Objects (With air resistance)
- Morcam
- · Replies 4 ·
Calculating Vector Projection Using Trigonometry
- noname1
- · Replies 1 ·
How to Determine Elevator Speed with Winch Mechanics?
- ilya
- · Replies 4 ·
How Should Gravity Be Signed in Kinematic Equations?
- erok81
- · Replies 3 ·
Beginning physics, in finding the electric field for a uniform line charg
- krtica
- · Replies 1 ·
Where Do Parallel Light Rays Focus When Entering a Glass Hemisphere?
- lmnt
- · Replies 2 ·
Wave Speed Homework: Find Frequency, Wavelength & Depth
- Jason17
- · Replies 1 ·
Magnitude of the vector r=r2−r1?
- Shardooni
- · Replies 1 ·
Electric Field Due to Infinite Line Charge
- SimbaTheLion
- · Replies 4 ·
Position and velocity vectors of a squirrel
- cdotter
- · Replies 2 ·
Maximum Height of Colliding Balls
- iamalexalright
- · Replies 1 ·
Derivation of Kepler's Third Law
- ximath
- · Replies 8 ·
How to Find the Unit Vector of a Given Vector?
- huntingrdr
- · Replies 5 ·
Calculating Speed for a Bullet to Pass Through 10 Planks
- The legend
- · Replies 1 ·
Realistic explanation of the doppler effect
- Moroni
- · Replies 6 ·
Finding Acceleration of Ball on Paper
- boardbox
- · Replies 9 ·
Energy question, displacement of a spring
- holezch
- · Replies 3 ·
Friction: Static Cylinder And Ramp Problem: Again
- afromanam
- · Replies 5 ·
How Far Does a Particle Travel in an Equilateral Triangle with Mixed Motion?
- adk
- · Replies 11 ·
Atmospheric Pressure Problem - Need Help.
- kriegera
- · Replies 2 ·
Understanding Optical Power in Simple Lens Equations
- rambo5330
- · Replies 1 ·
How much work is done in an hour?
- kriegera
- · Replies 2 ·
Resistive Force (of a damped oscillator: what is it?)
- Oijl
- · Replies 2 ·
Forces in pole leaning over ground
- player1_1_1
- · Replies 1 ·
Refractive Index of Water/Glass Combination
- labview1958
- · Replies 17 ·
Compton Scattering in Newtonian Physics
- rpardo
- · Replies 1 ·
How Do You Calculate the Electric Field at Point P with Two Charges?
- kpw0629
- · Replies 1 ·
What is the Current at Node Y in a Circuit with Kirchhoff's Current Law?
- Paymemoney
- · Replies 7 ·
Calculating Forces on a Banked Curve
- taskev21
- · Replies 1 ·
I'm having trouble trying to solve this particular problem.
- biggie1
- · Replies 6 ·
Finding E field inside a sphere with charge proportional to radius
- Vapor88
- · Replies 1 ·
Simple Harmonic Motion and amplitude help
- ntox101
- · Replies 4 ·
Potential and Kinetic Energy with Time Thrown In
- kriegera
- · Replies 6 ·
How Do You Determine the Third Force in a 3-Force Equilibrium Problem?
- kriegera
- · Replies 4 ·
What is the Speed of a Proton at Triumf?
- erinec
- · Replies 2 ·
Volume of Air Bubble at Atmospheric Pressure
- kriegera
- · Replies 8 ·
Calculate Horn Frequency Decay Time in Seconds
- 05holtel
- · Replies 3 ·
Understanding Dielectric Constants and Their Impact on Capacitance
- learning_phys
- · Replies 20 ·
What average net force is required to stop .
- EMPhotography
- · Replies 1 ·
Solve Whistle Frequency Homework: 11 Beats/s, 769 Hz, Answer in m/s
- 05holtel
- · Replies 2 ·
Finding Magnitude & Angle of Vector A (4.0m, -3.0m)
- dakar76
- · Replies 1 ·
Magnitude and direction of resultant
- jwxie
- · Replies 1 ·
Calculating Wavelength: Finding the Formula with 10cm Between Phases
- Brittykitty
- · Replies 1 ·
How Do You Calculate the Mass of the Sun Using Orbital Mechanics?
- BoldKnight399
- · Replies 1 ·
Projectile Motion, Physics I with Calc. I
- bohregard
- · Replies 3 ·
Question about optics and thin lenses
- rambo5330
- · Replies 1 ·
What Is the Direction of Plane 1 Relative to Plane 2?
- bluefire90
- · Replies 7 ·
Charged rod in your hand stays charged
- reset_7
- · Replies 6 ·
Calculating pressure and temperature
- Steven345
- · Replies 6 ·
E of Parabolic & Hyperbolic Orbits: Explained
- E92M3
- · Replies 1 ·
Can Heat Flow and Work Impact Internal Energy in Insulated Systems?
- mmmboh
- · Replies 23 ·
Solving the 411nm Wavelength Emission from Hydrogen
- adream
- · Replies 3 ·
How Long Does It Take for a Ball Launched Off a Cliff to Hit the Ground?
- TheDoorsOfMe
- · Replies 1 ·
Trouble w/ electron in a television picture tube. Hints please
- kusiobache
- · Replies 4 ·
How to Solve Question 36 on Time-Displacement Diagrams?
- majormuss
- · Replies 3 ·
Acceleration of two masses and a pulley
- Hannisch
- · Replies 7 ·
Kinematic Distance Problem? Can't Tell
- adk
- · Replies 4 ·
What happens when a particle enters an electric and magnetic field at an angle?
- phys02
- · Replies 10 ·
Ice cube into water/thermal equilibrium
- farmerburns
- · Replies 4 ·
A nail is placed inside an electromagnet, why do we feel a buzzing sensation?
- highbury1991
- · Replies 9 ·
Finding the direction of the momentum (by drawing?)
- fawk3s
- · Replies 8 ·
Understanding Vector Subtraction for Solving Vector Problems
- jwxie
- · Replies 14 ·
Question about two charges on a line.
- peacemaster
- · Replies 9 ·
Calculating Force Using Young's Modulus
- MissAlex
- · Replies 2 ·
Deriving Mechanics Equations for the Moon
- Dime
- · Replies 1 ·
Force of Friction on an Inclined Plane
- mmalone11
- · Replies 9 ·
Impulse and Momentum of an object
- 89kyle
- · Replies 1 ·
Two torqued and hanging constrained rods
- pc100
- · Replies 2 ·
Centripetal force of a rotating ride thing
- Magma828
- · Replies 3 ·
Calculating Momentum with Time: A Free Fall Problem
- kriegera
- · Replies 6 ·