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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Youngs Double Slit: Intensities at Maxima & Minima
- Sparkle2009
- · Replies 4 ·
Normal force when on a horizontal surface
- wesDOT
- · Replies 1 ·
Skier on two hills: when does contact with snow break at the crest?
- moephysics
- · Replies 5 ·
What is the Bungee Jumper's Speed at a Height of 12.5 m Above the Water?
- Uncle6
- · Replies 5 ·
How Does Friction Affect Energy Conversion on an Inclined Plane?
- rvhockey
- · Replies 1 ·
The sign of Gravitational Potential Energy
- ritwik06
- · Replies 6 ·
What Is the Magnetic Field Inside a Long Solenoid?
- blueforest
- · Replies 1 ·
Jet engine displacement, average velocity, and instantaneous velocity from x=At²+B
- PHYSICS!!!:-)
- · Replies 3 ·
What is the tension in the cable of an accelerated elevator?
- seanmcgowan
- · Replies 6 ·
How Do You Calculate Final Temperature in a Mixed Material Calorimetry Problem?
- seanmcgowan
- · Replies 13 ·
Angular acceleration of the pulley
- Dell
- · Replies 5 ·
How is Force Transferred from a Pivot to a Cylinder?
- Ebola0001
- · Replies 1 ·
Torque of a woman leaning against a wall
- wallace13
- · Replies 4 ·
How Far Ahead is the Car from the Truck After Passing?
- maplesyrup23
- · Replies 8 ·
Gravitational acceleration on planet with 7x Earth's mass and 5x diameter
- Maiia
- · Replies 2 ·
Ponctual electric charge problem
- fishingspree2
- · Replies 2 ·
Comparison of Gravitational, Electric, and Magnetic Fields
- jwj11
- · Replies 2 ·
Conservation of momentum problem with a bullet and stationary block
- seanmcgowan
- · Replies 3 ·
Torque with an arm holding a weight
- wallace13
- · Replies 1 ·
Rock ejected from moon reaching Earth at 700 km altitude
- moephysics
- · Replies 15 ·
How Do You Calculate the Average Density of a Star?
- coffeem
- · Replies 7 ·
Moment of Inertia/ Kinetic Energy
- wallace13
- · Replies 2 ·
Computing Normalisation Constant A
- wam_mi
- · Replies 3 ·
Incompressible viscous liquid questions
- atavistic
- · Replies 3 ·
How much energy does the headlight use in 1.5 hours?
- Inertialforce
- · Replies 3 ·
How to Calculate Forces in Bridge Points?
- Mister V
- · Replies 2 ·
Why Does the Equatorial Bulge Affect Gravity on a Rotating Sphere?
- Shackleford
- · Replies 10 ·
Coefficient of friction for surface
- Mini_Mashi
- · Replies 4 ·
How Is Angular Speed Calculated for a Chain Saw Sprocket?
- wallace13
- · Replies 1 ·
Air resistance force on a falling table tennis ball at constant speed
- missmerisha
- · Replies 11 ·
If kinetic energy is doubled, by what factor does velocity increase?
- Damien20
- · Replies 3 ·
How is Angular Momentum Related to Linear Momentum?
- vballkatie22
- · Replies 3 ·
Friction force on rotating semicircle at θ=80° and 40°
- springo
- · Replies 2 ·
Calculating Momentums and Velocities for Exploding Firework Parts
- myoplex11
- · Replies 3 ·
How Can a Space Capsule Stop Rotating After a Collision?
- pantherfan11
- · Replies 3 ·
How far does a rolling ball travel on a loose track before it tips?
- myoplex11
- · Replies 1 ·
How to solve a problem like this
- gallimaufry
- · Replies 3 ·
Calculate the maximum height of ball 1
- myoplex11
- · Replies 1 ·
Calculating Object's Trajectory on a Circular Track
- myoplex11
- · Replies 3 ·
What is the angle of the plane with respect to the horizontal?
- reaperkid
- · Replies 6 ·
Calculating Height of a Fence Hit by a Baseball
- wesDOT
- · Replies 9 ·
Energy Stored in Elastic Bodies
- DMOC
- · Replies 4 ·
Calculating Mass of Expelled Gas in Space Probe Course Correction
- Farcry25
- · Replies 3 ·
Trying to recall rope-tension problem
- FallenShadow
- · Replies 5 ·
Work done by gravity when two connected cylinders equalize
- thehammer
- · Replies 6 ·
Relationship between centripetal force and velocity in circular motion
- physicsman2
- · Replies 4 ·
Calculate the component of the electric field
- nokia8650
- · Replies 2 ·
How do sound waves reflect at the open end of a pipe?
- nokia8650
- · Replies 2 ·
Centripetal acceleration in an ultracentrifuge at 60,000 rpm
- Imperil
- · Replies 3 ·
I to figure out how to turn acceleration data into Horsepower/Torque
- soundengineer
- · Replies 24 ·
Heat Loss Question: Single Coin vs All Coins
- twilos
- · Replies 1 ·
Concave mirror magnification: image distance and focal length from M = -di/do
- noobie!
- · Replies 4 ·
Does Bouyant Force Affect Scale Readings?
- twilos
- · Replies 2 ·
What is the Swimmer's Velocity Relative to the Observers on the Beach?
- yowatup
- · Replies 1 ·
Standing waves and resonance frequency
- Niles
- · Replies 6 ·
Centripetal force vs velocity graph shapes from stopper mass experiment
- physicsman2
- · Replies 4 ·
Why does the pendulum bob swing to the same height after hitting the rod?
- roxxyroxx
- · Replies 5 ·
Positron accelerated between two charged parallel plates
- FiskiranZeka
- · Replies 8 ·
Solving voltage across capacitors
- FiskiranZeka
- · Replies 6 ·
How Do You Calculate the Gravitational Field Strength on Mars?
- ahrog
- · Replies 4 ·
Deriving period formula for a moon orbiting a planet
- ahrog
- · Replies 13 ·
How do I calculate projectile motion when launching balls from a compressor?
- knightryder
- · Replies 1 ·
Calculating Tension in a horizontal cable
- rml4589
- · Replies 23 ·
Calculate Speed of 91.7 kg Person at Equator
- Maiia
- · Replies 5 ·
How Do You Calculate the Stopping Time and Displacement of a Skier on a Slope?
- sonoftunk
- · Replies 3 ·
Microwave Emitting Star, and detector with diffraction
- TFM
- · Replies 44 ·
Stellar Formation, Life, Death - Temp, Radius, Luminosity
- Rallyette
- · Replies 2 ·
Energy stored in a bow and arrow
- vectordog
- · Replies 2 ·
Tangential Components of Electrical Fields Equal at Dialectrics Interface
- coffeem
- · Replies 1 ·
Friction: A box at rest on a slope
- sonoftunk
- · Replies 4 ·
Coefficient of restitution in rotation motion
- iitjee10
- · Replies 1 ·
Weigh something with multiple scales
- nutso
- · Replies 2 ·
What are the main sub-topics of Thermodynamics in Machines?
- Shegda
- · Replies 2 ·
How Small Must Earth's Mass Be Compressed to Form a Black Hole?
- ticels
- · Replies 1 ·
How Is Work Calculated With Friction?
- rice1am
- · Replies 4 ·
Applying Newton's Laws (Inertia, F=ma, Action Reaction_
- rice1am
- · Replies 2 ·
What Is the Correct Banked Curve Angle for a Car Traveling at 64 km/hr?
- Maiia
- · Replies 3 ·
Angular velocity and accelerating problem
- reaperkid
- · Replies 2 ·
Finding Balancing Point Between Earth and Sun
- Littlemin5
- · Replies 2 ·
What is the Linear Speed of an Air Puck in Circular Motion?
- Maiia
- · Replies 6 ·
Distance from sun to earth= 1.5 x10^11m
- Littlemin5
- · Replies 2 ·
How far was the spring compressed if the 2.2 kg cart moves at 1.5 m/s?
- roxxyroxx
- · Replies 7 ·
How long will it take to come to rest?
- Max CR
- · Replies 7 ·
Newtons Laws Question: Finding acceleration and direction of movement
- acorn1290
- · Replies 2 ·
How Far Will Jenny Slide on Flat Ground After Sledding Downhill?
- PvtDonutDJ88
- · Replies 4 ·
Minimum speed for baseball to clear 7.5 m fence 95 m away
- aly1201
- · Replies 8 ·
Physics 11: How to Calculate Spring Compression with an Applied Force of 6.0 N
- roxxyroxx
- · Replies 2 ·
Why does the heavier sled have momentum √2 times the lighter sled?
- marcuss
- · Replies 3 ·
Solve Electric Circuits Homework: RT, Vdrops, I, P, VTerm
- Inertialforce
- · Replies 5 ·
How to find the resultant vector from two forces
- confusedgirl
- · Replies 1 ·
Pump lifting water 50 m uphill: work, power, and pressure
- logglypop
- · Replies 2 ·
Equilibrium of Charged Particles on an Axis
- Air
- · Replies 2 ·
Special Relativity - apparent speed
- eprparadox
- · Replies 7 ·
Charge distribution when two conducting spheres touch
- Air
- · Replies 12 ·
Magnetic field on current loop, involves rotational energy
- cdingdong
- · Replies 4 ·
Calculating the Period of an Orbit around Earth
- gemini2904
- · Replies 10 ·
Piston Pressure: How to Calculate Forces and Work in a Gas Cylinder System
- jonnejon
- · Replies 4 ·
Total Potential and kinetic energy
- lax1113
- · Replies 2 ·
The Changing of Objects with Temperature-Thermodynamics
- Weezergames
- · Replies 1 ·
Catching a Falling Can: Solving for Acceleration
- Jeramaya
- · Replies 4 ·