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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What is the net charge contained within this cube?
- GLRult
- · Replies 1 ·
Find an Expression For the Voltage
- mmmboh
- · Replies 3 ·
Is the Kinematic Equation Applicable for Calculating Projectile Motion Speed?
- mybrohshi5
- · Replies 6 ·
Find the tensions in the cables of a weight
- warfreak131
- · Replies 4 ·
Calculating mechanical energy and efficiency in a pendulum experiment
- Shaley
- · Replies 1 ·
Limit of a mountain using universal gravitation
- BoldKnight399
- · Replies 1 ·
Finding airplane and wind velocities from triangular flight path times
- hellbike
- · Replies 3 ·
Projectile Motion Question: Tennis Serve and Net Distance
- MFlood7356
- · Replies 8 ·
Is Option B the Correct Answer for Question 8 on Viscosity?
- The Dude 321
- · Replies 1 ·
Calculating the Hydrogen Spectrum: Understanding Energy Levels and Transitions"
- Badrakhandama
- · Replies 3 ·
Static friction of blocks on a wire
- MisterOL
- · Replies 3 ·
Equilibrium in a tractive apparatus - tension and pulleys
- sethro_gt
- · Replies 1 ·
Galilean transformation inconsistency with light sphere equation
- Prophylaxis
- · Replies 1 ·
Question on oscillations spring balance and fish
- squintyeyes
- · Replies 2 ·
Focal Length of a Plano-convex Lens
- scar_face
- · Replies 2 ·
Least squares fit to a straight line?
- noname1
- · Replies 4 ·
Range of Powers of Eye Lens - Optics Question
- Keano16
- · Replies 1 ·
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 ·
Finding heat direction without knowing final temperature
- 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 ·
Normal and static friction forces on a car on an inclined road
- onyxorca
- · Replies 7 ·
Physics question on absolute pressure?
- delfinofrank
- · Replies 4 ·
Are These Statements About Vectors True or False?
- mullets1200
- · Replies 1 ·
Calculating thermal energy from work and kinetic energy in a toboggan problem
- 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 ·
Centripetal force of Earth orbiting the Sun
- BoldKnight399
- · Replies 3 ·
Trouble with multiple-current circuit diagram problems.
- QuietQuasar
- · Replies 1 ·
Oblique Elastic Collision Angle Calculation
- kingjoshie
- · Replies 2 ·
Finding projectile landing point with quadratic equation
- 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 ·
Finding vector components, angle with z-axis, and projections for three displacements
- 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 ·
River wave speed and frequency with changing 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 and force on 50 kg tube pushed by 15° wedge
- afromanam
- · Replies 5 ·
How Far Does a Particle Travel in an Equilateral Triangle with Mixed Motion?
- adk
- · Replies 11 ·
Air bottle submerged in pond: depth for 100 cm³ water to enter
- 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 ·
Finding amplitude of 0.50 kg particle in SHM with given displacement and speed
- 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 ·
Whistle moving toward wall produces 11 beats/s with reflection
- 05holtel
- · Replies 2 ·
Finding magnitude and angle of vector (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 ·
Can a thin lens form an in-focus image at very large distances?
- 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 ·
Total energy of parabolic and hyperbolic orbits
- 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 ·