Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Collision of bullet with mass hung from tree
- devanlevin
- · Replies 10 ·
Why Don't Air Molecules Gather Solely at Earth's Surface Despite Gravity?
- jlm44
- · Replies 2 ·
Force exerted by tabletop on incline with sliding block
- tanzl
- · Replies 1 ·
How do I determine the support reactions in a method of joints truss?
- mikel lowery
- · Replies 3 ·
Calculating the mass and number of atoms of a structural I beam.
- hsbc2003
- · Replies 2 ·
Understanding the Acceleration of a Thrown Ball
- steviedee
- · Replies 5 ·
Work-Kinetic Energy Theorem question
- tajmann
- · Replies 3 ·
Optics question: What two positions of a lens gives a sharp image?
- LeeLoo
- · Replies 3 ·
How Does Wave Propagation Time Relate to Cable Length and Gravity?
- pcjang
- · Replies 1 ·
Calculating the mass and number of atoms of a structural I beam
- hsbc2003
- · Replies 2 ·
Fun Car Physics Problem. I swear it's wicked fun
- Iamaskier721
- · Replies 4 ·
AP Physics Summer work problems
- Iamaskier721
- · Replies 6 ·
What is the Terminal Voltage of a Battery?
- LHC
- · Replies 4 ·
Carnot Engine: A Firebox at 750K, Efficiency 60.0%: Part (a) & (b) Explained
- Gear300
- · Replies 29 ·
Question-Electrostatics-Point charge and uncharged plate
- GPhab
- · Replies 1 ·
Heya Help with Electro magnitisim Question Please
- vip_uae
- · Replies 20 ·
How Is the Rocket's Mass Ratio Determined for Specific Speed Goals in Space?
- noppawit
- · Replies 1 ·
Current from magnetic configuration
- AdamNailor
- · Replies 8 ·
Electormagnitics Quests relating coaxil cables and other
- vip_uae
- · Replies 2 ·
Calculating Main Sequence Lifetime.
- adwodon
- · Replies 1 ·
Is my solution correct? About momentum
- noppawit
- · Replies 1 ·
How Do Hinges Affect the Horizontal Force on a Door?
- HarrisonColes
- · Replies 1 ·
Magnetic field strength between two wires homework
- shanie
- · Replies 13 ·
Segment and joint angles problem.
- clokey34
- · Replies 2 ·
AP Physics: Solving Average Acceleration Problem
- azure kitsune
- · Replies 2 ·
Estimate the binding energy of the H2 molecule
- ksachs
- · Replies 3 ·
Finding Index of Refraction (n) Using θi and θr
- shinemono
- · Replies 2 ·
Trouble with drawing vector diagrams.
- dinayork
- · Replies 2 ·
Projectile Motion: correct answer, but still confused
- TimH
- · Replies 4 ·
Does the speed of sound depend only on temperature?
- maithie
- · Replies 2 ·
When will two ships collide in reference frame of Earth?
- matt14690
- · Replies 3 ·
Position, Distance & Displacement: Which are Vectors?
- golden_acorn
- · Replies 9 ·
Oscillation Problem Please HELP need for school
- mkha0246
- · Replies 4 ·
Contour Map Help: Make & Label -50V to +50V Lines
- fredrick08
- · Replies 19 ·
Finding launch angles for projectile passing through a point
- deltapapazulu
- · Replies 2 ·
How Many Electrons Needed to Balance Gravitational Force Between Two Balls?
- devanlevin
- · Replies 4 ·
Where Is the Electric Field Zero in This Dipole Setup?
- Point Conception
- · Replies 8 ·
How Is Tension Calculated in a Pendulum with Varying Angles?
- devanlevin
- · Replies 3 ·
Relativity physics homework problem
- matt14690
- · Replies 2 ·
Calculating the Speed of a Moving Ship in Special Relativity
- matt14690
- · Replies 11 ·
Tossing an item up a slope, calculating it's length from start to landing
- Molecular
- · Replies 1 ·
Relative velocity and Michelson Morley experiment
- Oerg
- · Replies 8 ·
Power needed to accelerate a chain.
- JustRandy
- · Replies 11 ·
Help with Calculating Net Force, Resistance Forces and Work
- Jacko_065560
- · Replies 5 ·
What fraction of a centimeter equals 1.0 micrometers
- afcwestwarrior
- · Replies 1 ·
Converting kilometers to micrometers
- afcwestwarrior
- · Replies 9 ·
Simple Harmonic Motion: Mass on a spring
- delecticious
- · Replies 5 ·
Energy Conservation in Oscillatory Motion
- kaka2007
- · Replies 2 ·
Application of Aristotle with free fall
- Gear2d
- · Replies 1 ·
What is the Change in Momentum of the Railcart in this Problem?
- sms14
- · Replies 6 ·
Projectile Motion, find max height, TWO POSSIBLE ANSWERS?
- iceman99
- · Replies 13 ·
What Are the Possible Frequencies of Oscillations for a Clamped String?
- Pranas Juozas
- · Replies 5 ·
Calculating Coefficient of Static Friction in Simple Harmonic Motion
- hemetite
- · Replies 11 ·
Why Is the Tension in the Rope Not Matching the Book's Calculation?
- Gear2d
- · Replies 1 ·
Conservation of Momentum in Moving Buckets of Water
- Gear2d
- · Replies 3 ·
Is This Electromagnetism Homework Attempt Correct?
- vip_uae
- · Replies 2 ·
SHM question with no other details
- hemetite
- · Replies 11 ·
Double-slit experiment with radio towers
- gigli
- · Replies 1 ·
What is the minimum force required to keep two cables taut at a given point?
- fociboy
- · Replies 4 ·
How Do You Solve a Projectile Motion Problem with Calculus?
- dominus96
- · Replies 3 ·
Calculating Electric Force and Distance Between Two Charges
- shanie
- · Replies 4 ·
Calculating Electric Force Between Charges in a Dielectric Medium
- Velocity.
- · Replies 2 ·
Acceleration Disadvantage: Solving a Problem with a Go-Kart and Different Masses
- oblit
- · Replies 7 ·
What is the Maximum Mass M That Can Be Balanced on Two Wedges Without Slipping?
- learning_phys
- · Replies 7 ·
Radiation intensity and distance?
- gigli
- · Replies 4 ·
Solv'g Displacement Diff for 2 Points w/ 30 Deg. Phase Diff Given f, v
- tigger88
- · Replies 1 ·
How Does a Car Door's Angular Velocity Change as It Slams Shut?
- i<3math
- · Replies 1 ·
Voltage at Halfway Point Between Point Charges in an Equilateral Triangle
- rissa_rue13
- · Replies 3 ·
Total internal reflection, underwater light
- gigli
- · Replies 9 ·
Magnetic moment of an orbitting charge
- wbrigg
- · Replies 2 ·
How Does a Transformer's Secondary Coil Behave in Different Circuit Conditions?
- herich
- · Replies 1 ·
Simple pendulum, det the change of its period?
- hemetite
- · Replies 11 ·
Projectile motion in inclined planes?
- somnambulist
- · Replies 1 ·
VCE Physics 2006 Exam Q3: Transistor Questions
- sanado
- · Replies 2 ·
How Does Switching a Magnetic Field Affect Coil Flux and Induced Current?
- TheKovac
- · Replies 1 ·
Spring Kinematics and Electricity/magnetism properties.
- Plutoman
- · Replies 2 ·
PLEASE Can any one solve this problem
- spsundaram
- · Replies 2 ·
Motorcycle Velocity Difference and Acceleration Problem
- Caitlin.Lolz.
- · Replies 1 ·
Solved It: How I Fixed a Complex Problem
- jamespeterstu
- · Replies 1 ·
Resolving Forces Homework: Pin Frame BCFGD
- geoffishere
- · Replies 9 ·
Velocity of air in compressed air tube
- Aqueous
- · Replies 4 ·
Air Wedge radius of the wire Problem
- Zukie91
- · Replies 7 ·
Displacement vs Time: Analyzing Graphs
- Gear2d
- · Replies 5 ·
Angular Diameter of Sun: Radius, Area, and Power
- yiuscott
- · Replies 2 ·
Another Horizontal Displacement Question
- Lostone
- · Replies 13 ·
Electric Field: Why is This Statement Wrong?
- yti1211
- · Replies 3 ·
Possible webpage title: What Remains Constant in One-Dimensional Kinematics?
- yti1211
- · Replies 2 ·
Strength of a magnetic field around a wire with current
- gigli
- · Replies 3 ·
Calculating Resolution of Space Camera for Imaging Earth
- Vanush
- · Replies 11 ·
Induced EMF Problem: Calculate Magnetic Flux & Initial EMF
- carus88
- · Replies 3 ·
How long does it take for the dart to travel the length of the barrel?
- musicxisxlove
- · Replies 3 ·
Is the Electromagnetic Wave Equation Invariant Under Galilean Transformation?
- Amith2006
- · Replies 3 ·
Asteroid in a circular orbit about the Sun
- sstoning
- · Replies 3 ·
Why is the speed of sound from a jet moving at 100m/s through air still 340m/s?
- Gear2d
- · Replies 1 ·
What Is the Maximum Speed of a Trebuchet's Payload?
- Zukie91
- · Replies 19 ·
How Does Electron Drift Speed Affect Current Flow in Copper Wires?
- carus88
- · Replies 1 ·
Contraction of spring colliding with balls
- devanlevin
- · Replies 1 ·
Hard Projectile Motion Question
- emmettecox
- · Replies 5 ·
Spring and Elevator Questions i am stuck
- hemetite
- · Replies 4 ·
Finding Current and potential difference in a circuit
- Number1Ballar
- · Replies 16 ·