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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Minimum horizontal force to prevent block slipping on accelerating wedge
- iMAGICIALoTV
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Determining initial velocity of an electron
- ZedCar
- · Replies 6 ·
Calculating Charge with Capacitors in Series
- PeachBanana
- · Replies 6 ·
Finding the magnitude of Torque
- nina123
- · Replies 2 ·
Minimum force to pull a sled at 26° with friction
- nina123
- · Replies 4 ·
Moment of forces about point A calculation
- EIGHTSIX7
- · Replies 1 ·
Is the Net Force Zero in Constant Velocity and Other Physics Queries?
- JLPG
- · Replies 3 ·
Acceleration for Masses on a slope/plane connected by a string
- AJKing
- · Replies 4 ·
Why conserve angular momentum instead of energy for a cockroach on a rotating disk
- Tanya Sharma
- · Replies 17 ·
What is the speed of the ambulance based on its siren's frequency?
- nczzzzzz
- · Replies 3 ·
Net Acceleration: Is it Ever OK?
- dan38
- · Replies 4 ·
Find Tension of the rotating rod at a distance x
- Tanya Sharma
- · Replies 2 ·
Why does the uncertainty principle reject the semiclassical Bohr model?
- s3a
- · Replies 1 ·
Air balloon acceleration and mass of ballast that must be droppped
- JLPG
- · Replies 3 ·
Should the D String Be Tightened or Loosened When Tuning a Banjo?
- nczzzzzz
- · Replies 1 ·
How to show that the motion graph of a linear oscillator is an ellipse.
- RockenNS42
- · Replies 6 ·
Conservation of Linear Momentum Problem
- MG5
- · Replies 1 ·
Momentum: Collision in two dimensions
- lksmith17
- · Replies 1 ·
Coefficient of kinetic friction for 3.6 kg block on 27° incline
- FilibertoG
- · Replies 1 ·
Help with pendulum, incline, collision, and work problems
- bcalkins
- · Replies 1 ·
Finding the Maximum Height of a Pendulum Swing
- bcalkins
- · Replies 1 ·
Maximum Initial Speed of an Overdamped Oscillator
- TheRedDragon
- · Replies 1 ·
Billiard ball hit above center reaches higher speed via friction
- assaftolko
- · Replies 26 ·
Four exam problems on forces, kinematics, and circular motion
- coldsteel
- · Replies 7 ·
Find Slope of Run to Reach 40 m/s in 30 Seconds
- Dejahboi
- · Replies 5 ·
What Are the Components of Net Force for a Mass Swinging on a Rope?
- cfagan6
- · Replies 1 ·
Does radiation from a sun explosion reach Earth at light speed?
- Fizic
- · Replies 1 ·
Rank Velocity Vectors by Kinetic Energy
- vysero
- · Replies 1 ·
Vertical Oscillation assuming no damping
- xelzi
- · Replies 1 ·
What is considered a small velocity?
- Fellowroot
- · Replies 1 ·
Why is my moment equation about point B giving the wrong force at C?
- theBEAST
- · Replies 2 ·
How can I find Horizontal and Vertical velocity, given distance and time?
- kayte
- · Replies 16 ·
How Do You Calculate the Second Speed of a Roller Coaster at the Loop's Top?
- _h2tm
- · Replies 9 ·
Force equation for horizontal component of a two-block system
- iMAGICIALoTV
- · Replies 2 ·
Degrees Celcius to Farenheight, Conversion issues
- Nellen2222
- · Replies 5 ·
Finding R and p from hydrogen atom binding energy data
- meriadoc
- · Replies 1 ·
Finding coefficient of kinetic friction for a 20.0 kg sled pulled at 30°
- l2udolph
- · Replies 1 ·
Force and Motion rod tension problem
- KingKai
- · Replies 7 ·
Why does perturbation in infinite well give zero energy correction?
- Dammes
- · Replies 7 ·
What is the Tension in a Connecting Cord for Two Masses on an Incline?
- juggalomike
- · Replies 9 ·
Uniform Acceleration: Solve for Initial Velocity
- davon806
- · Replies 1 ·
Why do we use cosine and sine to find vector components?
- jimmyly
- · Replies 6 ·
How Far Can I Hike Up a Mountain After a 500 Calorie Lunch?
- layla2525
- · Replies 3 ·
Comparing power delivered to moving vs stationary carts
- layla2525
- · Replies 6 ·
Fundamentals of Physics Test Bank questions?
- Ishida52134
- · Replies 6 ·
A plane flying at 220m s-1 at a height of 300m
- Nubcake
- · Replies 18 ·
Tension in one of two ropes of a hung sign
- JLPG
- · Replies 7 ·
Two masses connected by strings over movable and fixed pulleys
- Lolagoeslala
- · Replies 7 ·
Solving for Projectile Velocity for Intercepting A Moving Target
- QuaternionKid
- · Replies 4 ·
Final Velocity given only Initial Velocity and Angle
- tworley1977
- · Replies 11 ·
Tension in ropes w/o acceleration or friction
- JLPG
- · Replies 3 ·
Work Done ON or BY the System [Conceptual Question]
- CallMeShady
- · Replies 3 ·
Three friction problems: incline, horizontal force, and pulley system
- Xelb
- · Replies 2 ·
Solving Pulley Systems with Multiple Masses and Angles
- mburt
- · Replies 14 ·
How does the reference height affect Bernoulli's principle calculations?
- Avalanche
- · Replies 3 ·
Finding acceleration of truck from a hung mass on the ceiling of it.
- JLPG
- · Replies 3 ·
Truck descending a hill with constant power and friction
- NasuSama
- · Replies 7 ·
Calculating force between links in a chain
- JLPG
- · Replies 1 ·
Thermodynamics: 2 Pistons connected by a rod
- flyers
- · Replies 1 ·
Find tension in cables with forces acting on them.
- proctortom
- · Replies 1 ·
Gas heated under constant pressure - thermal energy transferred?
- Marcargo
- · Replies 4 ·
Which path is faster: chord or arc of a circle?
- talisman2212
- · Replies 13 ·
Circular Motion, Revolutions from diameter, time and speed
- SherBear
- · Replies 5 ·
Estimating tracheal volume flow from inhalation time
- Nellen2222
- · Replies 2 ·
Question finding Vf of a charge moving through potential difference
- pcleary
- · Replies 10 ·
Heat transfer in an Isothermal process?
- digipony
- · Replies 3 ·
How Many Revolutions Does a Tire Make at 20 m/s in 4 Seconds?
- SherBear
- · Replies 6 ·
Minimum height for radio wave reflection between Montreal and Paris
- lordvipomme
- · Replies 7 ·
Projectile Motion-Football Clearing Crossbar
- donjgatlin
- · Replies 1 ·
Optics - Angular Magnification
- Hyperfluxe
- · Replies 5 ·
Why Does the X Component Disagree in Problem B?
- Analekt
- · Replies 2 ·
What is the tension in the rope attached at -4mxˆ?
- mrcheeses
- · Replies 2 ·
Gravitational pull on a spaceship by Earth = that of the Moon
- physicsphan9
- · Replies 1 ·
Rigid body rotation. Need explanation
- am_knightmare
- · Replies 5 ·
Basic kinematics - calculating time
- v3ra
- · Replies 5 ·
Maximum force for blocks moving together without slipping
- johnhuntsman
- · Replies 4 ·
Conceptual Energy vs Momentum question
- Feodalherren
- · Replies 5 ·
Calculating Force with Mass and Acceleration
- socialfox
- · Replies 3 ·
Statics/Moments - Force perpendicular to slope?
- AndrewZzz
- · Replies 3 ·
Is the Roller Coaster Speed Calculation Correct?
- Shad94
- · Replies 6 ·
How to Calculate Work Done by Tension in a Vertical Rope for a Moving Mass
- NasuSama
- · Replies 5 ·
Work (of worker, gravity, normal, total)
- Fizic
- · Replies 1 ·
How Do You Calculate the Oscillation Frequency of a Compressed Rubber Pad?
- Barrowlands
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What is the displacement and component analysis of a cat climbing a tree?
- damombz
- · Replies 8 ·
What is the Unit of ω=sqrt(g/x0) and How is it Converted to Radians?
- Barrowlands
- · Replies 1 ·
2D collision of billiard balls
- PStudent111
- · Replies 1 ·
Understanding Lenz Law: How Current Flows in Close Proximity Coils
- nik jain
- · Replies 3 ·
Why do neutral and charged objects attract?
- Fabio010
- · Replies 3 ·
Finding coefficien of kinetic friction
- sjcorona
- · Replies 1 ·
How Does Projectile Motion Affect a Tennis Ball Thrown from a Moving Car?
- Nubcake
- · Replies 15 ·
Can someone me find the magnitude of acceleration using forces?
- shaunamariexx
- · Replies 1 ·
Fraction of K.E. that turned into P.E.
- utkarshakash
- · Replies 6 ·
Double Slit - any interference?
- ZedCar
- · Replies 10 ·
Average force exerted by ball on the wall
- Tanya Sharma
- · Replies 6 ·
Physics of River Crossing: Solving for Angle and Component Velocity
- asheik234
- · Replies 2 ·
Electrostatics balancing gravitational, coulomb forces and tension
- FatPhysicsBoy
- · Replies 4 ·
Work done by expanding gasses on bullet
- bdh2991
- · Replies 4 ·
Calculating Impedance Using Capacitive Reactance
- PeachBanana
- · Replies 11 ·
Why does ΔE ≠ 0 when H2O condenses at 95°C?
- modx07
- · Replies 2 ·
Applications of Resonance in Weaponry?
- saw_tooth
- · Replies 2 ·