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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Free body diagrams with tension
- username*
- · Replies 5 ·
Solve Projectile Fragments Problem with Hint
- heartofaragorn
- · Replies 3 ·
Spherical Mirrors: Image Formation with Concave Mirrors - Calculation Example
- slyman
- · Replies 1 ·
Conservation of momentum of two cars
- Stipe
- · Replies 1 ·
Why Does the mth Interference Maximum Vanish in Single Slit Diffraction?
- slyman
- · Replies 3 ·
How Does Throwing a Toolkit Affect an Astronaut's Speed in Space?
- Confused_07
- · Replies 1 ·
How does centripetal force depend on mass, radius and speed?
- Aus_Phys
- · Replies 6 ·
Image location and magnification with mirror and diverging lens
- floridianfisher
- · Replies 3 ·
Moment of inertia and angular speed of skater
- Confused_07
- · Replies 4 ·
Does change in kinetic energy equal change in potential energy?
- username*
- · Replies 3 ·
Two Jupiter-size planets crashing together from 1.30×10¹¹ m apart
- neo982
- · Replies 9 ·
Particals along a straight line
- Confused_07
- · Replies 1 ·
How Do Resistors and Nodes Function in a Parallel Circuit?
- 07jfortune
- · Replies 1 ·
What causes a metal ball to fall faster than a feather on earth?
- art14
- · Replies 6 ·
Calculating work from a quasi-static process for an ideal gas
- trah22
- · Replies 4 ·
Uniform circular motion airplane problem
- snoggerT
- · Replies 2 ·
Finding maximum height for bullet fired vertically upward
- libido_07
- · Replies 9 ·
Center of Mass Frame for Elastic Collision
- heartofaragorn
- · Replies 7 ·
Why does F = m(dv/dt) work for a car catching snowballs?
- EFuzzy
- · Replies 22 ·
Determine the latent heat of an unknown substance
- dhkdl1
- · Replies 2 ·
NEVER connect an ammeter in parallel ->WHY?
- hiyoo89physics
- · Replies 3 ·
What does 'net' mean in net force and net thermal energy?
- kthouz
- · Replies 4 ·
Electrostatics induction with charged ruler and conducting spheres
- Music Head
- · Replies 8 ·
Particle in a box, find the frequency of collisions
- ehrenfest
- · Replies 6 ·
How do you find the frictional force acting on an object if it is decelerating?
- lina45
- · Replies 6 ·
Finding acceleration and tension for two connected crates
- Edwardo_Elric
- · Replies 7 ·
Least-Squares fit for a line Concept
- cycam
- · Replies 1 ·
Projectile Motion Question - Clearing a Wall
- Vyl
- · Replies 4 ·
Light Bulbs Interference Pattern - Vey Easy Multiple Choice
- rum2563
- · Replies 2 ·
Frame of Reference- arrow traveling through a tube
- momentum2357
- · Replies 4 ·
Finding magnitude of maximum angle theta for oscillation
- kojack21
- · Replies 3 ·
How far is the lens from the slide if the image is virtual?
- floridianfisher
- · Replies 11 ·
What is the power input (in kW) needed to run the heat pump?
- spazmsfreak
- · Replies 2 ·
Net torque on a lever when a man pulls up on the board he stands on
- cxz
- · Replies 6 ·
How Does Adiabatic Expansion Affect Ideal Gas Pressure?
- trah22
- · Replies 3 ·
Angular frequency of disk suspended from a pivot
- Momentum09
- · Replies 2 ·
Comet speed at midpoint between two binary stars
- neo982
- · Replies 2 ·
How Do You Calculate Tension and Pole Force on a Leaning Tether Ball?
- Edwardo_Elric
- · Replies 1 ·
Physics investigatory project topic
- say_physics04
- · Replies 6 ·
Simple Wave Problem, But I can't figure out the answer
- annakorish
- · Replies 3 ·
Calculating Time for Block to Reach Max. Amp. After Spring Collision
- Momentum09
- · Replies 1 ·
Length of a spring under its own weight
- gabee
- · Replies 5 ·
How Do Newton's Laws Apply to a System with a Heavy Rope?
- Edwardo_Elric
- · Replies 6 ·
Solving for Ey in a Region with Electric and Magnetic Fields
- vicks
- · Replies 3 ·
Simple Harmonic Motion- How Many Times Does the Diaphragm Move Back and Forth?
- ladolce
- · Replies 2 ·
Terminal Velocity of a Concrete Sphere
- Yander
- · Replies 8 ·
Normal modes, 2 masses, 2 springs
- Hume Howe
- · Replies 1 ·
Speed of an electron and potential difference
- grscott_2000
- · Replies 10 ·
Escape velocity formula and black-body radiation peak
- f3nr15
- · Replies 5 ·
Electric Charge Problem with Unit Vectors.
- PFStudent
- · Replies 1 ·
Block on toboggan pulled by 30 N force on frictionless ice
- NKKM
- · Replies 1 ·
Parallel and Series, Lightbulb Problem
- kiwikahuna
- · Replies 4 ·
Charged particle acceleration in magnetic field
- rum2563
- · Replies 1 ·
Decimal places for meter rule measurements and error calculations
- ngkamsengpeter
- · Replies 6 ·
What Lens Power Does a 77-Year-Old Need to Correct Near-Sightedness?
- GravityGirl
- · Replies 6 ·
Finding coefficient of static friction for a climber on a 40° slope
- FilthyOtis
- · Replies 10 ·
Einstein's photoelectric equation
- t_n_p
- · Replies 7 ·
Electron fired between parallel plates at 5.0×10⁶ m/s
- Touchme
- · Replies 3 ·
How Do You Calculate the Net Charge in a Nonuniformly Charged Spherical Shell?
- PFStudent
- · Replies 2 ·
Direction of Motion of an Electron in an Electric Field
- Sleek
- · Replies 6 ·
Work of pushing box horizontally - including force of friction
- avsj
- · Replies 8 ·
How Do You Calculate the Acceleration of Two Connected Blocks?
- username*
- · Replies 5 ·
Direction of the runner's total displacement?
- MIA6
- · Replies 5 ·
Magnetic field strength for electrons in Van Allen belts
- MJC8719
- · Replies 15 ·
AM radio antenna inductor voltage amplitude
- slyman
- · Replies 2 ·
Distance where charged particle reaches half its final speed
- cajunchrisbu
- · Replies 5 ·
Practice Physics Questions for Gr 11 Exam Tomorrow
- SkipToMaLou
- · Replies 5 ·
Electric Flux through Planar Surfaces
- exi
- · Replies 2 ·
Gilligan's Island Radio Transmitter
- PHYSICS2GRL
- · Replies 6 ·
Understanding Forces in Tug of War: Positive, Negative, Zero
- harvik780
- · Replies 1 ·
Electric potential of a solid conducting sphere with concentric spherical shell
- kiwikahuna
- · Replies 4 ·
Kinetic Energy regarding Collision
- rash219
- · Replies 6 ·
Earth exerts a downward gravitational force
- MIA6
- · Replies 13 ·
Vector addition and displacement
- MIA6
- · Replies 9 ·
Maximum safe speed on a circular racetrack with friction
- saikamaniac
- · Replies 3 ·
Relating internal energy to highest temp
- trah22
- · Replies 10 ·
2 blocks being pulled across the floor
- mujadeo
- · Replies 3 ·
How Do You Calculate the Axis Distances for Zero Torque in a Square?
- ladolce
- · Replies 4 ·
Why Do Astronomical Telescopes Use Mirrors Over Lenses?
- leehom
- · Replies 2 ·
Electromagnetic radiation wavelength
- grade11
- · Replies 2 ·
Solving Repulsive Force problem
- Jeff7477
- · Replies 15 ·
Understanding Bridge Rectifiers to AC Theory and Function
- prasannapakkiam
- · Replies 3 ·
Solve RC Circuit 6V Battery, 1F Capacitor, 3 Resistors
- meganterre
- · Replies 3 ·
Elastic collision between sphere and dumbbell with rotation
- hkyriazi
- · Replies 15 ·
Electric field from potential V=10x²-12x+63
- kiwikahuna
- · Replies 1 ·
Pendulum/planet circular motion
- mintyyf
- · Replies 2 ·
Net Electric Force on Charged Spheres
- rum2563
- · Replies 8 ·
Acceleration of a falling pinned stick
- Droo
- · Replies 1 ·
Mercury thermal expansion in glass flask
- Abarak
- · Replies 1 ·
Calculating Specific Heat of Unknown Sample Using Calorimetry
- trah22
- · Replies 2 ·
Centripetal Acceleration of curved exit ramp
- rash219
- · Replies 2 ·
Time for Light to Travel 54cm Through Glycerine in Aquarium
- leehom
- · Replies 1 ·
Calculating Angular Acceleration of Hollow Sphere with Pressure Difference
- WhoThat3
- · Replies 10 ·
Why Are Particles Deflected in Opposite Directions in a Magnetic Field?
- BMWPower06
- · Replies 4 ·
Number of lines/cm for the grating
- physicsstoodent
- · Replies 1 ·
Electrostatics concepts: resistors, capacitors, and fields
- rapha
- · Replies 4 ·
Tension between hanging boxes B and C in pulley system
- snoggerT
- · Replies 7 ·
Magentic induction and shielding
- serverxeon
- · Replies 2 ·