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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Torque with constant circular velocity
- Matejxx1
- · Replies 1 ·
Laws of Motion- dropping book off building with a twist
- a.k
- · Replies 8 ·
Finding the magnitude necessary to balance two forces
- Shadow236
- · Replies 2 ·
Will the Coastguard's Intervention Prevent a Ship Collision?
- phospho
- · Replies 12 ·
Comparing masses of three main sequence stars from spectral type and lifetime
- Sastronaut
- · Replies 5 ·
Inertia Q: Which Frame of Ref Is Inertial?
- endaman95
- · Replies 3 ·
Doppler effect when airplane travels faster than sound
- barryj
- · Replies 5 ·
Heat flow problem (copper pipe)
- BMcC
- · Replies 2 ·
Electric field lines produced by two eccentric charged cylinders
- Razvan
- · Replies 7 ·
Finding θ when a pulley moves with two blocks
- Tanya Sharma
- · Replies 20 ·
Two converging lenses with same focal length at 60° angle
- luiseduardo
- · Replies 3 ·
Calculating Tension in an Elevator Cable - Is My Solution Correct?
- physicos
- · Replies 1 ·
Can You Solve This Four Spring Oscillation Problem?
- Tanya Sharma
- · Replies 14 ·
How Do Switch Operations Affect Capacitor Behavior in a Circuit?
- avolp
- · Replies 5 ·
Physics 3: Images, Interference and Difraction
- Kiwithepike
- · Replies 1 ·
Why isn't figure b equivalent to figure a when a is a Wheatstone bridge?
- kexanie
- · Replies 1 ·
Electric Field Outside a Solenoid
- sashab
- · Replies 1 ·
Finding the current in each resistor - Kirchhoff
- radator
- · Replies 2 ·
What is the initial momentum of the car and rider in a collision?
- savaphysics
- · Replies 2 ·
Time Question - how long did the train block the crossing?
- a.k
- · Replies 3 ·
Simple Van de Graaff Generator Problem
- Cantor
- · Replies 1 ·
Calculating the components of an electromagnetic wave
- Luck0
- · Replies 1 ·
Free-Body Diagram for a Block Pushed Against a Wall
- santoki
- · Replies 7 ·
Speed of chain with few variables
- BearMan
- · Replies 2 ·
Falling candy bag dropped from descending helicopter
- a.k
- · Replies 1 ·
Why does the RC time constant change when the switch closes?
- MightyDogg
- · Replies 8 ·
Willard Libby (C14 dating) or other Ideas/Suggestions
- protoss43
- · Replies 1 ·
Irradiance of sun in an image?
- carnivalcougar
- · Replies 4 ·
Rope falling through a hole: velocity, acceleration and mechanical energy loss
- deedsy
- · Replies 3 ·
Elastic Collision: Find Velocity of 2 Bodies
- TheAce3317
- · Replies 5 ·
Newtons laws of universal gravitation
- Queen B
- · Replies 9 ·
Question concerning experiment on Heisenberg's uncertanity principle
- MathiasArendru
- · Replies 4 ·
Photoelectric effect: negative kinetic energy for copper with 200nm photon
- FaraDazed
- · Replies 11 ·
Calculating potential differences around circuit loops with Kirchhoff's laws
- sozener1
- · Replies 4 ·
Virial equation, minimum pressure point
- MexChemE
- · Replies 4 ·
Magnetic Flux: Does Direction Matter?
- physicsrequire
- · Replies 1 ·
Is the Angle Between Velocity and Acceleration Constant for a Spiraling Bee?
- negation
- · Replies 8 ·
Velocity of a Spherical Particle in a Viscous Liquid: Integrating Drag Force
- playoff
- · Replies 5 ·
How to measure the speed of light with this setup
- chipotleaway
- · Replies 2 ·
Find Hinge Force of Rod Undergoing Circular Motion
- utkarshakash
- · Replies 65 ·
Block sliding on accelerating wedge
- jbunniii
- · Replies 4 ·
Geometric optics - thickness of acrylic ?
- carnivalcougar
- · Replies 13 ·
If you have a moment (at the end of a rod)
- iRaid
- · Replies 12 ·
General Equation about Energy lost due to Friction
- Quantumm
- · Replies 1 ·
Solving the Paramagnet Entropy Equation
- Dassinia
- · Replies 1 ·
Runner accelerates to racing velocity, then needs acceleration for final 250m sprint
- poptaguser
- · Replies 1 ·
Not sure if I calculated this correctly (Find the final temperature)
- PhyIsOhSoHard
- · Replies 4 ·
Metal bar on rails, induced emf
- subzero0137
- · Replies 12 ·
Work required to separate parallel plate capacitors
- avolp
- · Replies 2 ·
Lagrange's Equations for a Tetherball
- hanyas
- · Replies 12 ·
How Far From the Fountain Do the Joggers Meet?
- a.k
- · Replies 7 ·
Calculating Satellite Orbit Time
- a.k
- · Replies 3 ·
What Is the Clown's Velocity Before Hitting the Net?
- a.k
- · Replies 5 ·
Ball bouncing on inclined ramps
- Munchies645
- · Replies 9 ·
How Do You Calculate Velocity and Height Using Conservation of Energy?
- lostinphysics1
- · Replies 9 ·
How to Calculate Net Force for an Object
- jesstryin
- · Replies 4 ·
What is the Force on a Rectangular Loop in a Magnetic Field?
- fogvajarash
- · Replies 6 ·
Uncertanty in a non-linear regression with least squares method
- VictorH
- · Replies 3 ·
Is Using Norton and Thevenin Equations to Find Voltage Correct?
- darwinharianto
- · Replies 11 ·
Understanding Calculation of N (Number of Atoms)
- KiNGGeexD
- · Replies 6 ·
What is the maximum distance a radar can detect objects on the Earth's surface?
- utkarshakash
- · Replies 3 ·
Question regarding displacement current
- utkarshakash
- · Replies 3 ·
What Is the Angle of the Jet Before Deflection in Aerodynamics?
- Poppietje
- · Replies 2 ·
Projectile Trajectory Analysis for a Darts Game
- Stax
- · Replies 1 ·
Calculating Frequency from Energy: A Joules to Frequency Problem
- Torque-King
- · Replies 2 ·
Mass rotating in horizontal circle at two velocities
- mpittma1
- · Replies 17 ·
Solving the Angular Momentum & Kinetic Energy Equations: Find ωa & ωb
- mcheung4
- · Replies 1 ·
Net force on rectangular wire loop near current-carrying wire
- MelanieB
- · Replies 1 ·
Electric field 4.65 cm from a solenoid axis with time-varying current
- MelanieB
- · Replies 3 ·
Solving Electric Magnetism Problems: Forces, Fields, Potentials, Work
- brains
- · Replies 5 ·
Formulas converting Potential Energy to Kinetic Energy
- magnetics
- · Replies 5 ·
Determination of moment of inertia
- ajcoelho
- · Replies 9 ·
Who knew finding Velocity could take so much Work and Energy?
- Byrnkastal
- · Replies 5 ·
How does static friction do work?
- c_programmer
- · Replies 5 ·
Egg Drop Contraption: A Physical Science Project Report
- coolman50544
- · Replies 2 ·
Masses on table - Acceleration of Connected Objects
- jbunniii
- · Replies 2 ·
How to Calculate Energy Dissipated in an RC Circuit?
- majormaaz
- · Replies 8 ·
Initial acceleration of block when string is cut
- Tanya Sharma
- · Replies 15 ·
Speed of sound on a moving train
- Adithyan
- · Replies 1 ·
How Do You Calculate Acceleration in a Two-Mass Pulley System?
- jbunniii
- · Replies 7 ·
How to calculate the wetted perimeter
- theBEAST
- · Replies 1 ·
Solving Hooke's Law Problem: Spring Constant & Speed of 370kg Car
- Abdul.119
- · Replies 2 ·
Tension in the strings after string is cut
- Tanya Sharma
- · Replies 10 ·
Solving RC Circuit Problem Homework
- majormaaz
- · Replies 5 ·
Uniform magnetic field and electric field
- Sixty3
- · Replies 4 ·
Loop-the-loop track, connection height with time?
- Arslan32
- · Replies 8 ·
How Does Charge Distribution Affect Electric Field and Potential at Point P?
- Encrypted1
- · Replies 1 ·
Special Relativity with 2 light beams moving towards each other
- Felipe Doria
- · Replies 1 ·
Formulating an Eigenvector Equation
- 2.718281828459
- · Replies 2 ·
What is Upiter's speed when closest to the sun?
- kopinator
- · Replies 2 ·
Equivalent Resistance of Circuit System
- adamkesher
- · Replies 2 ·
Why does my energy go negative with friction, spring, and kinetic energy?
- Seahawks
- · Replies 3 ·
Why Is Electrostatic Potential Independent of Path in a Field?
- Encrypted1
- · Replies 10 ·
Pulleys: One mass hanging between two other masses
- geralt
- · Replies 1 ·
What is the Displacement of the Wedge When the Smaller Block Reaches the Bottom?
- utkarshakash
- · Replies 8 ·
Understanding Diode Current Flow
- alexmath
- · Replies 1 ·
Electric flux through surface with uniform field at angle
- haha1234
- · Replies 9 ·
Toppling of cylinder containing fluid
- Tanya Sharma
- · Replies 6 ·
Particle collision producing C* with gamma decay
- JSGandora
- · Replies 5 ·