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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Length a Block on Pulley Moves - (Basic Energy Question)
- Alyssa Eiger
- · Replies 7 ·
How does the incline of the rod depend on mass and force F?
- bolzano95
- · Replies 17 ·
Temperature as a function of time in black body radiation
- Daniel Sellers
- · Replies 14 ·
Where Does the Energy Go in an Ideal Capacitor Circuit?
- Felipe Lincoln
- · Replies 16 ·
Calculating Initial Height of a Falling Safe on a Spring
- Abdurrr
- · Replies 5 ·
Resultant force from water on dam
- HJKL
- · Replies 9 ·
How to calculate the average velocity?
- Indranil
- · Replies 13 ·
Young's double slit experiment green laser
- Sullo
- · Replies 2 ·
Piece of iron put into container with ice
- Lukasz Madry
- · Replies 4 ·
Calculating Potential Difference in a Parallel Plate Apparatus
- Poguer0170
- · Replies 4 ·
Free particle position expectation value using Ehrenfest theorem
- renec112
- · Replies 10 ·
How Does Plane Polarized Light Oscillate Relative to Energy Transfer Direction?
- FelaKuti
- · Replies 12 ·
Bizarre Atmospheric Physics Problem
- Daniel Sellers
- · Replies 7 ·
Solution to the Two-Body Problem: Cross-Product and Dot-Product Integration
- TimeRip496
- · Replies 2 ·
How does halving the time affect the distance traveled by a falling object?
- M. M. Fahad Joy
- · Replies 13 ·
Change in Capacitor for largest possible Current
- Jess_18033152
- · Replies 2 ·
Problem in electrostatics: E-field near 2 point charges
- ubergewehr273
- · Replies 4 ·
Find the scalar value and direction of the electric field
- HJKL
- · Replies 5 ·
Electric Force on a Charge in a Solenoid
- Helly123
- · Replies 4 ·
Particle energy and mass in different reference frames (A.P. French)
- alejandromeira
- · Replies 28 ·
Force on vessel bottom when metal cube is immersed in water
- subhradeep mahata
- · Replies 18 ·
What is the Resistance of the Patient in a Defibrillation Shock?
- Jess_18033152
- · Replies 2 ·
How Much Charge Does a Defibrillator Capacitor Store After 1.10 Seconds?
- Jess_18033152
- · Replies 2 ·
How Does Charge Distribute Between Two Concentric Shells Connected by a Wire?
- Conductivity
- · Replies 2 ·
Force between the plates of a charged capacitor
- Jahnavi
- · Replies 27 ·
Analysing a double capacitor circuit with no battery
- Felipe Lincoln
- · Replies 14 ·
Engine sizing (torque/power) question
- Sandor Hadas
- · Replies 8 ·
Finding the change in mass of a charged body if it loses 1 C
- SimpleBurrito
- · Replies 13 ·
Probability distribution momentum for particle
- renec112
- · Replies 10 ·
Trajectory of a proton as it moves between the plates
- Cicicicici
- · Replies 12 ·
Work done per unit charge by electric field on charge
- Cicicicici
- · Replies 4 ·
Excess pressure inside a soap bubble
- Jahnavi
- · Replies 15 ·
Current in RC circuit when capacitors lose 80% of stored energy
- Ruskointhehizzy
- · Replies 5 ·
Gun firing 1g bullets at 10 m/s with 5 g weight force
- subhradeep mahata
- · Replies 16 ·
How does ball A come to rest and Ball B remain stationary?
- Richie Smash
- · Replies 2 ·
What is the electric charge on the charged polystyrene ball?
- SimpleBurrito
- · Replies 1 ·
Two elastic ropes, Acceleration and Height Problem
- Simon981
- · Replies 13 ·
Kinetic energy of a bouncing ball
- Amarillo99
- · Replies 7 ·
What is the internal radius of the optical fibre
- Ajaroy
- · Replies 2 ·
Particle acceleration/displacement question
- Lami
- · Replies 1 ·
Conducting rod creates a complete circuit
- scoutdjp2012
- · Replies 3 ·
Find mass of a rope pulled by a force
- Jahnavi
- · Replies 1 ·
Effects of changing the angle on an inclined plane
- Pterostylis
- · Replies 1 ·
What is the power of the lens in diopters?
- KVM
- · Replies 3 ·
Estimating the Probability of Nuclear Power Plant Damage from Rare Tsunamis
- hworth
- · Replies 5 ·
Calculating Magnetic Flux Density for an Electron Orbiting Near Earth's Surface
- Ben King
- · Replies 3 ·
Gravitational Potential Energy Project Thor
- mailmas
- · Replies 8 ·
Finding the Image Location for Two Lenses in Contact
- Mulz
- · Replies 2 ·
Pendulum rotating about an axis
- Apashanka das
- · Replies 2 ·
Proton between charged plates: magnetic field, circular motion, and frequency
- scoutdjp2012
- · Replies 3 ·
Why does an object disappear in a liquid with equal or higher refractive index?
- subhradeep mahata
- · Replies 15 ·
Verifying pendulum period formula with different local gravity
- DvdP
- · Replies 2 ·
Find the mass M so that the net torque is zero
- Andres Padilla
- · Replies 6 ·
Centre of gravity of a 3D irregular object
- Raghavendar Balaji
- · Replies 6 ·
Image with an Plano-Convex lens
- nordmoon
- · Replies 7 ·
Determining the angle for a mass to overcome friction
- Nojins
- · Replies 9 ·
Electric potential inside a shell of charge
- prodo123
- · Replies 3 ·
Relationship of Young's modulus and impulse force
- Howard_SSS
- · Replies 3 ·
Calculate the induced EMF for angle α
- Yousuf Ejazi
- · Replies 2 ·
How should forces be drawn on a ladder? Considering the cross-members
- bolzano95
- · Replies 8 ·
How to Normalize a Wave Function in a Potential Well?
- Safder Aree
- · Replies 3 ·
How to approach this photoelectric effect question
- Safder Aree
- · Replies 12 ·
Laplacian in spherical coordinates
- BRN
- · Replies 2 ·
Direction of The Force of a Wall Exerted on a Rod
- bolzano95
- · Replies 3 ·
Jack Sparrow's velocity when he falls down the ravine?
- cyrusn
- · Replies 11 ·
Beam calculation with 3 unknowns
- willowdanny
- · Replies 5 ·
Gauss Law- Conducting and Non-conducting cylindrical shells
- Samnolan1031
- · Replies 8 ·
Electric potential of a spherical shell using two methods
- prodo123
- · Replies 2 ·
Induced EMF and current in the circuit
- Jahnavi
- · Replies 10 ·
Find the minimum distance between 2 particles
- Helly123
- · Replies 4 ·
Why is there no vertical component of force at D in a bar-link mechanism?
- Andy Salter
- · Replies 11 ·
Can a Heat Balance be Achieved with Constant Condensation Temperature?
- Kqwert
- · Replies 5 ·
Solve Q14: Linear Dimension Question
- lingkky
- · Replies 2 ·
Why does the mirror method work for refraction through a glass block?
- Jahnavi
- · Replies 18 ·
[The Theoretical Minimum] Can closed systems exist?
- Highwire
- · Replies 2 ·
Lenz' law: North pole of bar magnet moves away from a coil
- subhradeep mahata
- · Replies 10 ·
Sound velocity ratio in closed and open organ pipes
- Sullo
- · Replies 3 ·
Control Volume, Fluid Mechanics
- Kqwert
- · Replies 5 ·
Finding frequency for destructive interference between two speakers
- Sullo
- · Replies 8 ·
Moving a conducting rod in a magnetic field
- subhradeep mahata
- · Replies 2 ·
Does Cavitation Affect Volumetric Flow Rate Conservation in a Pipe?
- Kqwert
- · Replies 1 ·
Sound intensity of a thunderbolt
- Mulz
- · Replies 1 ·
Two parallel diodes in a circuit
- Jahnavi
- · Replies 35 ·
Find charge inner/hollow sphere
- g98
- · Replies 2 ·
Buoyancy,volume of air inside barrel
- Kqwert
- · Replies 1 ·
Pressure at same height in same fluid?
- Kqwert
- · Replies 4 ·
Electric field from voltage drop
- HastiM
- · Replies 1 ·
Voltage Distribution in a Potential Divider Circuit
- Muhammad Danish
- · Replies 4 ·
Current flowing in a branch in a circuit
- Jahnavi
- · Replies 13 ·
What is the net charge on a magnesium ion after losing two electrons?
- Jess_18033152
- · Replies 1 ·
Finding coefficient of friction when max and min forces maintain equilibrium on incline
- UnknownGuy
- · Replies 5 ·
Calculate the ratio of new volume to old volume
- Richie Smash
- · Replies 2 ·
Force on a current currying wire in a magnetic field
- maxelcat
- · Replies 7 ·
Speed of escaping gas from a cylinder
- Jahnavi
- · Replies 4 ·
Is there a quicker way to solve this projectile problem?
- Jahnavi
- · Replies 8 ·
New wave after superposition (interference)
- Helly123
- · Replies 4 ·
Centrifugal force and elastic deformation
- ClassicalMechanist
- · Replies 17 ·
Coefficient of volume expansion of gas
- Jahnavi
- · Replies 2 ·
Intensity of Light using Quantum theory
- Seven of Nine
- · Replies 1 ·
Doppler shift of a hydrogen line on sun
- Krashy
- · Replies 8 ·