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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Work Done By A Force of Constant Magnitude in Moving an Object in a Circle
- Zach Knight
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How to Calculate Work Done by Kinetic Friction on a Toboggan?
- Jimmer7
- · Replies 2 ·
Angular momentum and inertia problem
- tomcell
- · Replies 13 ·
You are a tourist on space odyssey; at what altitude above the surface
- jasonbans
- · Replies 3 ·
Interference of waves (check my hmwk questions please)
- supernova1203
- · Replies 8 ·
Thin Film Interference- Transmission
- jayjay713
- · Replies 6 ·
Can someone me on an equilibrium problem?
- darlingdarlin
- · Replies 7 ·
I REALLY understanding this concept
- Xyius
- · Replies 12 ·
Need help with a circuit problem? (Picture attached)
- ObviousManiac
- · Replies 8 ·
Understanding Projectile Motion: Free Body Diagram of a Tipcat
- Abhigyan
- · Replies 1 ·
What is the Instantaneous Speed at the Top of a Ball's Path?
- danni
- · Replies 2 ·
What Is the Rotation Speed of a Disk After Being Tossed?
- Phystud
- · Replies 16 ·
Work, distance and time problem
- kieslingrc
- · Replies 12 ·
Moment of inertia wheel and bug
- Jdanka
- · Replies 5 ·
When and where will the police car intercept the stolen car?
- VICKZZA
- · Replies 3 ·
What Is the Initial Mass of Ice in a Cooking Vessel with Water at 0ºC?
- melissa9
- · Replies 1 ·
A doubt regarding work and energy
- katiesstaar
- · Replies 7 ·
Another Question about Electric Potential
- simplicity12
- · Replies 3 ·
Find the maximum spring compression
- Capncanada
- · Replies 5 ·
Electromagnetic Railgun - calculations
- paul-g
- · Replies 1 ·
Is it possible to pump a swing 360 degrees?
- rlaworms
- · Replies 2 ·
Coordinates of a particle (coupled differential equations)
- Linday12
- · Replies 7 ·
Solving a Static and Kinetic Friction Problem
- lessey
- · Replies 1 ·
Marble Speed on a Track: Finding Spring Compression and Velocity
- LZ27
- · Replies 14 ·
Calculate Percent Error: Measuring 75cm with Meter Stick
- sergey90
- · Replies 5 ·
Battery with voltage V=12V is connected to the primary of a transform
- ThirdEyeBlind
- · Replies 3 ·
Centripetal Force + Law of conservation of energy question.
- anonymous12
- · Replies 3 ·
Understanding Velocity in Waves
- Screen
- · Replies 1 ·
Use Conservation of Momentum or Conservation of KE for spring problem
- brainyasian
- · Replies 18 ·
Use Conservation of Momentum or Conservation of KE for spring problem
- brainyasian
- · Replies 5 ·
Distance traveled after a collision
- kieslingrc
- · Replies 9 ·
How Fast Must a Roller Coaster Go to Stay on Track Upside Down?
- Delzac
- · Replies 11 ·
Sound intensity level, decibels
- jehan4141
- · Replies 2 ·
Calculating Range of Santa's Roof Slide: An Energy Conservation Approach
- landlord
- · Replies 10 ·
# of electron states in a subshell
- damnwebassign
- · Replies 1 ·
Add conductor between infinite sheet
- CH1991
- · Replies 1 ·
AP Physics B is kicking my butt. Where are the AP Physics B FRQs?
- MaoZedong
- · Replies 2 ·
Understanding Maxwell's Magnetic Field: A Homework Inquiry
- CH1991
- · Replies 1 ·
Wave Superposition: Solving for Resultant Amplitude
- damnwebassign
- · Replies 2 ·
How does light passing through a QWP become unpolarized?
- CH1991
- · Replies 1 ·
How should I use slow cross fast rule?
- CH1991
- · Replies 1 ·
Angular momentum of bicycle wheel
- taxidriverhk
- · Replies 2 ·
Help Me Solve this Problem: My Attempt Didn't Work
- aaaa202
- · Replies 1 ·
How Do You Calculate Relative Speed in Special Relativity?
- Jalo
- · Replies 3 ·
Bug on a pivoted ring: rotational velocity
- Sam_Goldberg
- · Replies 2 ·
Why is the answer to this electricity question negative?
- srk999
- · Replies 1 ·
Circular Motion (Orbiting Objects)
- physicsluv
- · Replies 3 ·
Another Conversation of Energy Problem
- coldjeanz
- · Replies 10 ·
Energy conversion in a closed system?
- arabianights
- · Replies 6 ·
How Do You Calculate Tension in a Three-Mass Pulley System?
- lolcheelol
- · Replies 26 ·
General Questions about Eletric Field and Eletric Potential
- CH1991
- · Replies 2 ·
Infinite Sheet Potential Question
- CH1991
- · Replies 5 ·
When will I get total reflection?
- CH1991
- · Replies 4 ·
Solve Transformer Question: V1/V2=N1/N2
- CH1991
- · Replies 4 ·
Understanding Energy in RLC Circuits: Initial Conditions
- CH1991
- · Replies 5 ·
Farady Law Question: T=T/2 Current?
- CH1991
- · Replies 2 ·
Solving B.dl Question: Is Current 0 for Path AB?
- CH1991
- · Replies 2 ·
Solving KVL and KCL: Can I Say I1 = -I2?
- CH1991
- · Replies 2 ·
How Does Light Behave When Passing Through a Birefringent Prism?
- Xyius
- · Replies 1 ·
Relativistic Velocity Transformations
- jayjay713
- · Replies 3 ·
A confusing word problem. Can any one solve it?
- katiesstaar
- · Replies 3 ·
Conversion of Mass to kinetic energy.
- theshanthan
- · Replies 2 ·
Power and Electric Field problem
- kranav
- · Replies 3 ·
Finding work, heat, and entropy in a heat engine
- rubenhero
- · Replies 2 ·
Coriolis Force Direction with Rotating Ball and Velocities
- buzzing
- · Replies 4 ·
Calculating Acceleration of a Flywheel Driven by a Pulley System
- r4vr4c
- · Replies 16 ·
Rotational Motion with Elastic P. Energy?
- phyzz
- · Replies 1 ·
Resistors, parallel line notation?
- ZedCar
- · Replies 1 ·
Relation between stopping distance and Kinetic Energy
- fishnic
- · Replies 3 ·
Hydrostatics and work done by a gas in a situation similar to a siphon
- chingel
- · Replies 2 ·
Dimension Analysis: Find x, y, z To Satisfy Boyles Law
- iscofield
- · Replies 6 ·
How Is the Right Triangle Used in Truss Force Calculations?
- mohamadali
- · Replies 3 ·
Balance Beam: Solve + Explain Help
- Sunshine12
- · Replies 3 ·
Circuit and Shielding Problems
- conquerer7
- · Replies 1 ·
What is the change in density of water at a depth of 400 m?
- Abhishekdas
- · Replies 2 ·
Marble loop roller coaster launcher
- GNAR
- · Replies 1 ·
Calculate Wavelength from Rydberg's Constant
- CDerhammer
- · Replies 15 ·
How Do You Calculate Angular Acceleration and Time for a Turntable Platter?
- oranrene
- · Replies 2 ·
Calculate Skateboard Force & Friction: 2.6x10^-2 & 1.2x10^-2N
- plumeria28
- · Replies 5 ·
Inelastic collisions between two blocks
- lilblevs11
- · Replies 3 ·
What Does the Slope Represent in a Force vs. Acceleration Graph?
- Fequals
- · Replies 1 ·
Electric Field Strength problem.
- Darth Frodo
- · Replies 2 ·
Calculating Friction Force from Velocity Equation
- mrphobio
- · Replies 2 ·
Finding the amplitude in simple harmonic motion
- mm2424
- · Replies 3 ·
Understanding the Relationship Between Mass and Acceleration in Physics
- Fequals
- · Replies 1 ·
Using symmetry in electrostatic problem
- issacnewton
- · Replies 16 ·
Pendulum Amplitude and phase constant
- soccerscholar
- · Replies 4 ·
Jumping a dead battery in a car
- Eastonc2
- · Replies 11 ·
Forces and acceleration of truck and car collision
- cheerios456c
- · Replies 2 ·
Kinematic Equation Homework Question
- vmercadooo
- · Replies 7 ·
What magnitude of tension is in the wire?
- hunginc
- · Replies 2 ·
Mass absorption coefficient of aluminium
- ZedCar
- · Replies 2 ·
Induced EMF through a coil How/Why?
- MickOtto
- · Replies 3 ·
The motor that drives a reversible refrigerator produced 142 W
- warrior2014
- · Replies 1 ·
Work Air Conditioner Must Do To Keep Room Constant Temperature
- trevor51590
- · Replies 1 ·
Change in sound intensity over distance
- titans2206
- · Replies 1 ·
Solve for Golf Ball Angle and Velocity: 300m Hole with/without Air Resistance
- GoDzSoLDiiEr
- · Replies 1 ·
Finding an expression for linear acceleration of a hanging mass
- GMc86
- · Replies 5 ·
Eccentric rotation of a trebuchet arm
- meisadam
- · Replies 3 ·
Need help with a Work and Energy problem
- suzukits
- · Replies 6 ·