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.
Calculating Tension and Reaction Forces in a Ball and Socket Joint
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Determine the perpendicular distance for couple
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What is the change in potential energy of two blocks in a physics problem?
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Work and Heat Transfer in a Magnetic Field: Conduction Rod on Conducting Rails
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Resultant Moment of Force Around Point O: 20 Nm Clockwise
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Why Can't I Use Standard Cosine Calculations for Non-Orthogonal Axes Forces?
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A question on thermal stress and axial force in a structure
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Universal Gravitation problem - Satellite Orbit
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Water waves travelling from deep to shallow water
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Newton's third law force homework
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Solving Gas Chamber Problem: Pressure Equality in 3 Compartments
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FBD and Friction: Solving a Common Question | Homework Help
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Can Individual Zero Angular Momenta Result in Nonzero System Angular Momentum?
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Electric Field and Potential due to Induced Charges
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Maxwell's theory and electrons in orbits
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Cathode Ray Tube and magnetic field Question
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Calculating Distance Traveled During Acceleration
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Work Done by Gas: Ideal Diatomic Process
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Energy dissipated by a loop of muscle in an MRI machine
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The magnitude of the force of friction
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Coin rolling on another coin, when will free fall occur?
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Investigating Magnetic Train Forces: A Puzzling Inquiry
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KCL to Find Voltage Between a and b
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Will the Block Slide on an Accelerating Inclined Plane?
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Trying to come up with possible topic for physics experiment
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When the speed of light is slower than it should be.
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Can potential energy be greater than total energy?
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Calculating Electric and Magnetic Fields from Radiation Emitted by a 100 W Bulb
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Electrostatics || A cone charged unifomly, find intensity
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Askew Pitot tube, airplane velocity measurement
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How Does Friction Change with Applied Force?
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Can anyone explain this anomaly?
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Looking for a good source for problem sets
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A basketball is thrown straight down and bounces back up
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How much kinetic energy to propel an object
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Finding volume of a submerged object
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Different methods of finding the weight-work in a pendulum
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The # of bright fringes in a double slit with finite width?
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Where brick hits ground after sliding off a roof w/ friction
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Calculating gravitational pull on surface for large object
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Force applied by a constant stream of particles
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Moment of a Force: How to Find an Unknown Force on a Pivoted Metre Stick
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How large is the resultant force on Gavin's toy car after he kicks it?
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What is the force required to hold a pizza peel level with a pizza on it?
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Convex Lens Problem: Find Focal Length
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Throw a ball, initial velocity?
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Help with contour plots of effective potential in R3BP.
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Calculate T for Maximum Altitude: 1D Kinematics Problem Solution
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Graphical Derivation of x = Asin(ωt)
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How high is the snow pile if a kid jumps off it and lands on the ground?
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Different diameter rotational inertia
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Derivation of moment of inertia of a solid sphere
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How to convert arcsec to steradians
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Did the Pressure of a Monatomic Gas Change During Isentropic Heating?
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3 pulleys - 2 masses on incline plane
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Time taken for amount of a nuclear material to remain
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Can with water rotates -- the water forms a paraboloid
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Fluid - Work done to blow a soap bubble
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Direction of the components of a vector using trigonometry
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Stopping distance, Book is wrong?
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Distance of geosynchronous satellite from earth
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Requesting help with Potential and Kinetic energy
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Acceleration of elevator and force in cable
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Is Conservation of Energy the Key to Solving This Tricky Problem?
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Classical mechanics:effective spring const
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Mass on Elastic Rope: Solving for Rope Extension after Collision
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Find the acceleration of an object climbing an incline....
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Pellet fired through one foam block, embeds in second block
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Signal to noise ratio and uncertainty in magnitude
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Electric field of dipole moment
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Final Temperature and Time to Reach it When Adding Ice to Rum and Coke
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Power generated by radioactive decay
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Correlation between orbit eccentricity and mechanical energy
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How does the mass of a ball affect the % of energy loss
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30 kg boy in a 1000 kg elevator moving up 5 m/s
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Magnitude of magnetic field at distance from central axis
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Electric Field Symmetry in a Circular Charge Distribution
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Induced Current in Square Loop
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2000 kg boat, motor force of 6000 N, resistance 2000 N
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Understanding the Doppler Effect with Moving Sources and Observers
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How to find initial velocity with height, distance and angle
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Need help using Method of Members to find reaction forces
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What is the change in entropy ΔS of the gas?
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How to Apply Snell's Law Without Knowing the Index of Refraction?
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Calculating the tension in rope of accelerating object
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Moment of Inertia of Half Ring (Half Circle)
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Radioactive decay: Solve for delta t
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Does Increasing Molecules in a Constant Temperature Container Affect Pressure?
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A coil moves into a magnetic field
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Zero Induced EMF: Find Rate of B Change for Problem 9
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Acceleration of Two Blocks Connected by a Pulley on a Frictionless Ramp
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Why Do We Use Ramp Length Instead of Height in Rolling Sphere Calculations?
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What is the Zeroth Law of Thermodynamics and why is it causing confusion?
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What is the Coefficient of Friction for a Lab Using Spring Scales?
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Speed of Toy Car on Curved Track: Exploring Kinetic Energy
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Determine the resultant displacement
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Value of friction with constant velocity
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Finding velocities in super elastic collision
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Heated air below mercury pushes it out of glass tube
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Thermal Expansion linear vs area expansion
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