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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Grounded sphere in Electric field
- lswtech
- · Replies 11 ·
Resistance in a circuit with transformers
- woodentsick
- · Replies 13 ·
Can a Loop of Wire Be a Solenoid?
- jimmy42
- · Replies 2 ·
Which velocity component to use in kinetic energy with projectile motion?
- rygza
- · Replies 2 ·
Why does a bouncing ball's momentum change by 2mv?
- Marioqwe
- · Replies 8 ·
Box dragged along floor at an angle, calculating normal and frictional force
- revere21
- · Replies 6 ·
Clown cannon projectile motion at 11.7 m/s
- darkbiology
- · Replies 1 ·
Angle between x-axis and tangent to particle path at t=3s
- sagaradeath
- · Replies 3 ·
Answer:Solve Archer Fish Physic Problem: Find θ0
- sagaradeath
- · Replies 3 ·
Electric potential and kinetic energy equations with particles
- fisixC
- · Replies 18 ·
Is There an Electric Field at the Midpoint Between Two Protons?
- milkyway11
- · Replies 3 ·
How Do You Calculate Short Circuit Current in Thevenin Equivalent Circuits?
- Saladsamurai
- · Replies 6 ·
Calculating Velocity and Distance in One-Dimensional Motion
- chawki
- · Replies 6 ·
Archer's Maximum Range in a Building: How Long and How Fast?
- Asphyxiated
- · Replies 5 ·
Solving 3x3 Matrix: Solving 3 Equations-3 Unknowns
- Blu3eyes
- · Replies 4 ·
Past Cambridge, conservation of energy problem.
- xdrgnh
- · Replies 5 ·
Projectile angle and maximum height
- ThomasMagnus
- · Replies 1 ·
How Do You Calculate the Capacitance of a Coaxial Cable with Polystyrene?
- spottedcow913
- · Replies 1 ·
Variable Capacitance of a Radio Dial
- matthew1991
- · Replies 2 ·
Speed of half a chain falling off of a table
- marti423
- · Replies 1 ·
Kicking a Field Goal: Calculating Elevation Angles
- sagaradeath
- · Replies 3 ·
Negative charge between two positive?
- gmmstr827
- · Replies 4 ·
A quarterback can throw 60yd @ 45 degree angle. How fast can he throw?
- xcgirl
- · Replies 4 ·
My answer key is wrong right? I can't get it right
- flyingpig
- · Replies 6 ·
Effective Resistance Between Points in Circuit
- nolachrymose
- · Replies 1 ·
Moment calculation for a mobile equilibrium problem
- Jasbroek
- · Replies 8 ·
Internal resistance, dual power source problem
- ukdave
- · Replies 2 ·
Friction, speed, and radius of a curve?
- V.elizabeth.k
- · Replies 1 ·
Areas of Parallelograms and Triangles
- agnibho
- · Replies 6 ·
Finding magnetic field from magnetic force / semielliptical conductor
- awelex
- · Replies 2 ·
Why Is My Calculation for the Plane's Correct Heading Incorrect?
- turpy
- · Replies 3 ·
Calculating Charge in a Circuit with Multiple Capacitors
- spottedcow913
- · Replies 6 ·
Fundamental frequency of a standing wave
- dlthompson81
- · Replies 16 ·
Spacetime Interval Relativity question.
- PhantomFX
- · Replies 1 ·
Initial Speed of a Golf Ball Hit at 45° Angle
- xstetsonx
- · Replies 10 ·
Can LC Oscillations Be Generated Using a DC Source?
- saubhik
- · Replies 3 ·
Static equilibrium problem with moments
- SteelDirigibl
- · Replies 3 ·
Sound Problem involving a path difference
- Matt1234
- · Replies 1 ·
Finding the Equilibrium of Roller Forces: How Do We Solve This?
- SteelDirigibl
- · Replies 2 ·
Calculating Vertical Velocity and Force: Jumping Physics Problems"
- kooh
- · Replies 4 ·
Balancing coulomb and gravitational force
- Icheb
- · Replies 6 ·
Fire net stretch from different fall heights
- FearTheHump
- · Replies 6 ·
Calculating % of molecules at given temperature with a given velocity
- r34p3rex
- · Replies 3 ·
Finding object distance with only the focal length and magnification?
- Kristy92
- · Replies 1 ·
Maximum power dissipation in resistor with two parallel batteries
- lcybulsk
- · Replies 2 ·
Circular Motion, Banked Turn Without Friction
- mobwars
- · Replies 15 ·
Why Are the Moments Negative on Fb, Fc, and Fd?
- noname1
- · Replies 1 ·
Adding Capacitors, why do I add it like this?
- flyingpig
- · Replies 5 ·
What Is the Maximum Force Before the Top Block Slides Off?
- wernzj
- · Replies 1 ·
Object thrown upward with known initial and final velocity
- revere21
- · Replies 6 ·
Deriving an acceleration from Potential Energy
- Goatsenator
- · Replies 1 ·
Find emf and internal resistance of a battery
- Blu3eyes
- · Replies 8 ·
What must be its frictional force?
- crosbykins
- · Replies 2 ·
Does a 500g lead mass at 150°C melt ice at -10°C?
- ally.hady
- · Replies 6 ·
How do I calculate the voltage across each capacitor after the switch is closed?
- displayname
- · Replies 1 ·
Rotation of sphere problem, acceleration and velocity
- Staerke
- · Replies 4 ·
How Do You Calculate the Electric Field from an Arc?
- VitaX
- · Replies 3 ·
Why does gravity dictate min.velocity for centripetal force?
- aeromat
- · Replies 2 ·
Electric Force/ charge problem; missing electrons
- UltrusViderat
- · Replies 1 ·
What Speed Should a Basketball Player Shoot to Score from 5 Meters Away?
- matti0827
- · Replies 1 ·
How do we calculate the 42min time
- jsm6252
- · Replies 14 ·
Two balls thrown at the same speed from the same height
- pelmel92
- · Replies 1 ·
Centripetal force for flea on record and pilot in vertical loop
- crosbykins
- · Replies 8 ·
Resolving Horizontal Force F: Explanation and Process
- Kalus
- · Replies 1 ·
Circular motion angular velocity
- Abhishekdas
- · Replies 4 ·
Calculating Velocity from Vector Addition of Ion Positions
- Gold3nlily
- · Replies 4 ·
How Can Pitching Speed Be Affected by Uncertainty in Throwing Angle?
- mistabry
- · Replies 7 ·
Calculating Friction Force to Stop a Rolling Ball
- kristy_vincen
- · Replies 1 ·
Electric Potential Between Two Points
- uchicago2012
- · Replies 1 ·
Finding spring constant of bumper
- mohamud3917
- · Replies 7 ·
What Was the Initial Speed of the Shot Put in Randy Barnes' World Record Throw?
- godkills
- · Replies 5 ·
Maxwell - Boltzmann Distribution Integral: Proving Its Normalization
- mopar969
- · Replies 4 ·
Collision with Wall: Solving for dvx and ux
- Tusike
- · Replies 12 ·
How Do You Calculate the Activity of a Radioactive Sample?
- jumbogala
- · Replies 3 ·
How Do You Calculate Total Resistance in a Diagonal Battery and Resistor Setup?
- dukeedee
- · Replies 3 ·
Electric fields of a hallow ball
- Kibbel
- · Replies 3 ·
Emergency Braking: Stopping Distance of 48m
- chawki
- · Replies 1 ·
What is the Stopping Distance of a Car After Reaction Time?
- chawki
- · Replies 4 ·
Solving for Vv= The doppler Effect
- XxphysicsxX
- · Replies 4 ·
System of two bodies simple dynamics calculaton
- twowheelsbg
- · Replies 6 ·
Displacement of a steel rod - don't know how to begin
- pleasehelpme6
- · Replies 1 ·
What Is the Minimum Delay Time for Two Projectiles to Collide Mid-Air?
- Suk-Sci
- · Replies 5 ·
Calculating Current in a Kirchhoff Loop Circuit
- Faint
- · Replies 8 ·
Friction between stacked blocks: slab acceleration with 100N pull
- physStudent_3
- · Replies 2 ·
How Is Force Calculated in a Tennis Serve?
- AnomalyCoder
- · Replies 3 ·
Capacitor's Charge distribution
- zorro
- · Replies 29 ·
What is the Speed of a Book Sliding Down an Inclined Plane?
- The_big_dill
- · Replies 20 ·
What Is the Acceleration of a Block on a Frictionless Table?
- joelgrind
- · Replies 1 ·
Solving an Integral with Wave Packet: Find \varphi(k)
- 12504106
- · Replies 4 ·
Three charges in a plane- static and current electricity
- name_ask17
- · Replies 9 ·
Momentum and Impulse of a bullet
- AnomalyCoder
- · Replies 2 ·
Battery vs Capacitor vs Potential difference
- flyingpig
- · Replies 2 ·
Charge Transfer from sphere to sphere
- Rose Garden
- · Replies 3 ·
Finding electric field with a changing linear charge density
- bosteador3
- · Replies 1 ·
Finding Time With Distance And Acceleration?
- fdsa1234
- · Replies 13 ·
Total pressure of water against submarine
- chawki
- · Replies 7 ·
Proton in Magnetic Field Problem
- whoopie88
- · Replies 2 ·
Finding Final Flux in a Flat Coil-Ring System
- zorro
- · Replies 6 ·