Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
WHY does the sign for B1 and B2 keep CHANGING in this Bnet equation?
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Kinetic Energy and Work Homework Help
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Riding a Loop the Loop (velocity at the bottom of the loop)
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Frictional Force: Comparing Forces
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Understanding the Delayed Effects of the Russian Meteor Strike
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Finding velocity of car in Carnival ride
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How can i get the velocity of waves ?
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Find Center of Mass of Hemisphere Homework
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Conservation of Energy, pendulum problem
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How Can Fermat's Principle and Snell's Law Help You Find a Car Key in Water?
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How Does Water Leakage Affect the Frequency of a Vibrating Guitar String?
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How High Does a Golf Ball Go When Driven at 24.5 Degrees?
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What Is the Linear Acceleration of the Hoop in a Pulley System?
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Velocity(t), of rod moving in B-field
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Resistance and How It Varies With Diameter
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Right Hand Rule doesn't work for this problem?
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Electric field on each midpoint of square of side L
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Calculating Self Capacitance of an Isolated Sphere
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Finding Minimum Friction for Static Wedge: A Free Body Analysis Approach
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Maybe I posted in wrong forum: Fluid Mechanics help Chasing a deadlin
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Understanding Potential Difference in Terms of Electric Field and Distance
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How far away is she from the centre of the earth?
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Why might the two methods of calculating net torque not agree?
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Multiple dielectrics inserted in capacitor
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What is the maximum energy an electron can have after scattering a 40keV photon?
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How fast will your twin crash into the overturned truck?
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Why Does a Toy Airplane on a String Tilt When It Flies in Circles?
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Spring/block on horizontal plane SHM
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Calculating Wheel Forces on a Car's Center of Gravity
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Initial speed with Angle and distance
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Discontinuity in electrical field.
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Current and Voltage of Elements of a Circuit with a Solenoid.
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Kinetic energy of electron & energy states
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Direct-current circuit/Kirchhoff's law problem
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Thermodynamic Efficiency and the maximum possible electric output
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Kinetic Energy in water and the rate carried across each square meter
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Graph Vout vs Vin of diode circuit
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Acceleration on a parabolic curve
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Statics, determine the force required to rotate a body
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Help Needed: Figuring Out How to Make a Linear Graph from Lab Data
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Show that the wavefunction is normalized
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Yet another numerical on friction
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Quick question about electric fields in capacitors.
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Finding the Location of the 2nd Antinode in a Standing Wave at 4.10 Meters
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Finding the semi-major axis of a transfer orbit?
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Understanding Hyperbolic Functions
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Finding the Function of a Given Graph
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Calculating Angle and Height in Conservation of Energy Problem with Friction
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Magnitude of Potential Difference Between Two Points
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Help with determining the direction of induced currents
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Kinetic and potential energies of a harmonic oscillator
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Telling whether a wave function might have physical graph
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Trouble with a basic one-dimensional motion problem
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Finding Mechanical Energy without knowing Efficiency
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How Can a Simple Electric Motor Be Created Using a Coil in a Magnetic Field?
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Which design is better for a popsicle stick bridge: left or right?
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Conservation of Momentum/Collisions
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How to Calculate Final Charge on Capacitors Connected in Series?
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Understanding Charge: Types, Properties, and Mysteries Explained
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Question about waves (velocity, tension)
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Force pushing two gliders on an air track.
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Using recoil of atom to find correct in wavelength of emitted photon
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Ball rolling off ramp - what happens?
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Solving for Magnetic Flux in a Rotating Wire Loop
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Finding RMS Speed of Gas Atoms: Ideal Gas
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Number of collisions; elastic collisions
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What Causes Oscillatory Motion in a Particle with a Constant Force?
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Kinematics : A Rock Being Dropped off a Cliff
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Inelastic collision (finding e, don't understand concept)
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How is the planet-star ratio determined using the transit method?
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Finding distance between two origin points; waves
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Shuttle moving in a circular orbit
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Linear Algebra Applications in Astrophysics
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Finding the Velocity of Light through an Unknown substance
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Trying to find orbital velocity based off of height
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Two Dimensional Kinematics probelms
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Significant digits including only one zero
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Statics: Find resultant force and couple moment
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Calculating electron charge in lab
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Horizontally missed target, By how much?
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Use the law of reflection and index of refraction to find apparent d
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Find m1's coordinates using center of mass equation | Extended Object"
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Potential Energy in two springs system problem
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What Causes Tension in a Whirling Rope?
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Calculating the reflected power from solar radiation on the moon
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Electric Flux through a Closed Hemisphere Question
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Two projectiles, displacement vs. time
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How Long to Reach Maximum Height in Projectile Motion?
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Finding Force to Pull 150lb Sled on Horizontal Surface
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Some help needed in interpreting a problem - Keplerian velocity
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Does Lens Thickness Affect Its Focal Length?
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Finding an objects surrounding temperature
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White dwarf mass-radius relationship
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How to find speed with just height given?
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Relationship between Polarizing Angle and Angle of internal reflection
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Magnetic Moment- Spin System - Probability
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Question about de broglie wavelengths
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Omggg Determining voltage between point a and b given R = 40 ohms
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How Do You Calculate the Energy of Particles Using De Broglie's Equation?
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Theory of relativity - proton entering a medium
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