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 Work with Line Integrals: Solving a Force Field Problem
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Energy lost from sphere due to spark
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Bullets stuck in a log and speed it up
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Coloumbs Law when have 3 charges at unknown distances
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Quick question about transformer circuit
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Conservation of Net Mechanical Energy in SHM
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Finding the Spring Constant: Angular Velocity vs Hooke's Law
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Amplitude of spring after collision
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Solve Velocity: 423,000=5504v+4.37v^3
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Finding acceleration with two perpendicular velocities
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How Does Cooling Affect Pressure in a Sealed Water Container?
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Why specific latent heat of vaporisation > fusion?
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Gauss' Law between infinite plates
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Thermodynamics and heat capacity
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How Many Hydrogen Molecules Are in 1cm³ of a Balloon?
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What is the final linear speed of a basketball rolling down an incline?
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Destructive Interference in Water but not Air
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Young's double slit experiment help
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Consider two objects with m1, m2 connected by a light string
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Why Do Proton Beams Repel and Current-Carrying Wires Attract?
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Calculate the energy of the neutrino in the following decay
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What is the magnitude and direction of the current in conductor RS?
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Coefficient of Static Friction = tan (angle of incline)
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Help with variable mass on a slope question
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How long will it take for the small cube to fall?
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Extension of spring pulled at both ends
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What is the spring constant of the spring?
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Spacetime diagram for black hole
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Special relativity question with lots of frames
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Normal reaction in banked road circular motion
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Electric field in two concentric conducting cylinders
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Physical pendulum with no fixed pole
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How Does the Angle of Force Application Affect Sled Movement?
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Temperature after mixing ice and water
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Calculating Stopping Potential in Photoelectric Effect Experiment
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Calculating Velocity and Time Dilation in Special Relativity
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Angular Momentum, Inertia and Kinetic Energy?
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What is the physical dimension/unit of Probability current?
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Pulleys & Masses: Instantaneous Acceleration
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Resistance with resistors between parallel resistors
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1D Kinematics: Distance between 2 cars
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Energy Conservation in Standing Waves: Comparing Displacements and Finding k
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Speed of rocket as viewed from Earth
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Calculating Electric Flux through a Square in the xy-Plane
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Projectile is fired over level ground
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How Does Changing Variables Affect Light Diffraction Patterns?
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Help! Confused on Ray Diagram for Exam Question
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How Do You Calculate Modulation Index and Sideband Amplitudes in FM Synthesis?
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Displacement-Time Graph of a bouncing ball
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Two reels rolling without slipping
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Magnetic Induction: Homework Help
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Reading an Analog Meter, given ranges
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Charged particle in Electric and Magnetic field
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Force of impact for human falling different heights
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Newton's Laws -- Resting hockey puck hit with a force
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Angular acceleration on a pulley
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Max height of a concrete column
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Newton's third law: Rower makes boat move forward
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Ice melted by impact of lead bullet
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What is the minimum kinetic energy for this roller coaster ride?
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What Is the Correct Formula for Calculating Power in Rotational Motion?
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Why do we use the physical quantity work to measure energy?
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Question about static equilibrium
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Determine the mass moment of inertia of the assembly
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Understanding solution method for finding accelerations in a mechanical linkage
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Angular momentum of a satellite
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Finding ratio of masses of two blocks
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Two movable wires in Magnetic Field
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Questions on an end of the year project
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Electron Velocity Diffraction Grating Problem
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Finding the acceleration of 2 blocks
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Calculating the Number of Loops in a Solenoid: A Scientific Approach
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Conceptual Question on Angular Momentum.
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[Energy] Work on a vertically thrown object
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Question about path resulting from acceleration
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What is the Speed of a Block After Traveling 0.9 m Up an Inclined Plane?
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Determining Direction of Magnetic Force on a Moving Bar Magnet Near a Wire Loop
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How Does a Flywheel Begin to Move with Constant Speed After Adding a Mass?
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Work problem, box moves at h=.25 with F=85N
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Double-slit experiment: What is the speed of the neutrons?
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Conversion between two Harmonic Angular Motion
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Question about finding static friction coefficient
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Clarification on tension problem
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Does mass affect the amount of work done?
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When will the acceleration of a particle be zero?
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Is the electric field zero outside a coaxial cable due to charge cancellation?
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Question on finding maximum magnitude of acceleration
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Question on torques. quick one.
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Question kinetic energy in circular motion
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What is the velocity of a rod released inside a cart?
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Implementing angular momentum approach in problem
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Question on elementary statics multiple choice
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Calculating the boil-off rate of liquid helium
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Understanding cross product and direction of torque
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Magnetic Force on Electric Currents
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Calculating Power of Tear Layer in Contact Lens Prescription
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Displacement current and magnetic flux through a wire loop
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Magnetic Field in a Semi-Infinite Wire
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Friction loss due to exit pipe to reservoir
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Ratio of angular speed with conservation of energy
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