Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Box and a Spring on on an inclined plane
- ac7597
- · Replies 11 ·
Tangential Acceleration Problem, UCM
- stark3000
- · Replies 2 ·
Find the force needed for a body on an inclined plane to be static?
- Like Tony Stark
- · Replies 1 ·
What is the ratio of the distances traveled by these two players?
- posto002
- · Replies 30 ·
Stone thrown upward from roof: finding time in air
- AStupidHippo
- · Replies 13 ·
What happens when one of two concentric spherical shells is grounded?
- Davidllerenav
- · Replies 11 ·
Velocity of an object with varying mass
- Nasa123123
- · Replies 6 ·
How does the surface of a refracting prism become reflective?
- Browntown
- · Replies 2 ·
Index of Refraction Uncertainty Problem
- Browntown
- · Replies 1 ·
Energy Method: Inclined Plane - Solving for Velocity and Time
- e101101
- · Replies 1 ·
Why don't charges redistribute equally in capacitors in series?
- Romain Nzebele
- · Replies 14 ·
Cylinder with a horizontal tube (Fluid dynamics problem)
- ValeForce46
- · Replies 17 ·
Potential difference in Capacitors
- jisbon
- · Replies 3 ·
Calculate the time for a spacecraft to arrive at Mars (No Kepler's law)
- jisbon
- · Replies 19 ·
Finding Equivalent Resistance, Current, and Voltage across a resistor
- rugerts
- · Replies 4 ·
Mechanics of Materials - Tresca and Von Mises criterion
- DJ2019
- · Replies 1 ·
Find the fractional increase in inertial mass when an ice cube melts
- MaestroBach
- · Replies 10 ·
Calculate the quadriceps muscle force
- Newby
- · Replies 8 ·
Is a loaded forklift more likely to tip over when its load is lifted?
- antrea
- · Replies 1 ·
Electric forces between conducting rod and rail
- jisbon
- · Replies 1 ·
Finding Equivalent Resistances, Identifying Connections, etc.
- rugerts
- · Replies 1 ·
Finding currents, voltages, and equivalent resistances
- rugerts
- · Replies 1 ·
Work done by an electric motor to drive elevator
- weilam06
- · Replies 9 ·
Rolling cylinder falling 1 m: did I apply energy conservation correctly?
- jisbon
- · Replies 4 ·
Object brought to a stop in a distance of 1 mm?
- Sarah0001
- · Replies 5 ·
Length contraction of a ruler at 60 degrees to the observer
- dcarmichael
- · Replies 1 ·
Reviewing Griffith normalisation problem
- hagopbul
- · Replies 2 ·
What type of diagram should be drawn when applying Newton's second law?
- Comet1592
- · Replies 1 ·
Uniform Motion Review - Boat travelling
- anneku
- · Replies 5 ·
Physics Lab Propagation of Error Issue
- Browntown
- · Replies 13 ·
How Do Coupled Adiabatic Pendula Behave?
- Hamsi
- · Replies 1 ·
Deriving expression for magnetic field at point P due to current
- jisbon
- · Replies 1 ·
Momentum of intertia for a dihydrogen molecule
- fab13
- · Replies 2 ·
Resultant displacement in a stretched spring
- tina21
- · Replies 5 ·
Finding the magnitude and direction of a boat's motion
- Abdullah Younas
- · Replies 7 ·
Finding the launch velocity of a point charge in a e-field
- jisbon
- · Replies 7 ·
How to calculate the kinematics of an object pushed up an inclinex plane?
- ac7597
- · Replies 7 ·
Ground Velocity: -269.6 km/h [N 5.6 E]
- anneku
- · Replies 1 ·
What is the Impact of Ground Velocity on Airplane Passengers?
- anneku
- · Replies 1 ·
Magnification for Curved Mirrors
- NP04
- · Replies 1 ·
Work done by a tangential force shouldn't be zero
- etotheipi
- · Replies 12 ·
Deriving a kinematics expression using equations of motion
- mackenziesmith
- · Replies 6 ·
Minimum distance between two perpendicular moving vehicles
- KNT
- · Replies 2 ·
Free body diagrams for boxes, inclined planes and springs
- Like Tony Stark
- · Replies 1 ·
Requirements for seeing a Total Solar Eclipse?
- Sarah0001
- · Replies 5 ·
Net displacement from three vectors in component and polar form
- otirik
- · Replies 7 ·
Find the velocity of a point charge in a ring of electric field
- jisbon
- · Replies 4 ·
Rod rotating after mass lands on it
- jisbon
- · Replies 10 ·
Kinematics of a kicked football
- Josh0768
- · Replies 5 ·
Why can't we do this by using radius of curvature?
- Nimarjeet Bajwa
- · Replies 2 ·
Fluid Mechanics Challenging Problem
- jahan123
- · Replies 10 ·
Conservation of Momentum vs Constant k for an Ideal Spring
- BlazenHammer
- · Replies 2 ·
Electric field of an infinite charged plate
- jisbon
- · Replies 42 ·
Turns ratio in terms of wavelength for magnetic field coils
- HazyMan
- · Replies 1 ·
Tensions in a pulley system with bonded bottom pulleys
- E2dad
- · Replies 18 ·
Motion of a spool of thread on an inclined plane related to inertia
- songoku
- · Replies 30 ·
How do I modify plane waves to represent the EM field of a lightbulb?
- e101101
- · Replies 4 ·
Minimum work required to move a point charge
- kno
- · Replies 5 ·
Net charge contained by a cube in a region with a non-uniform E field
- mhrob24
- · Replies 3 ·
Fluid Dynamics - Momentum Equation for Area Change
- Magda
- · Replies 8 ·
Deriving a Formula for Velocity of Ball 2 Based on Mass and Angle of Inclination
- designroad
- · Replies 15 ·
Projectile Motion with Unknown Initial Height
- a1234
- · Replies 7 ·
Vector and scalar potentials for an EM plane wave in a vacuum
- Natchanon
- · Replies 5 ·
Complex representation of a wave
- e101101
- · Replies 4 ·
How to find the Acceleration when Velocity depends on position?
- zvjaginsevfan
- · Replies 17 ·
Overcoming Nuclear Forces: A Look Into the Physics of the Atom
- Sarah0001
- · Replies 1 ·
How Can p1 + p2 Exceed p in a Relativistic Elastic Collision?
- malawi_glenn
- · Replies 1 ·
Two equal ropes at 86° angle pulling weight upward: sin or cos?
- Breadsticks
- · Replies 13 ·
Calculating the number of electrons given the force of repulsion
- tmichaud26
- · Replies 5 ·
Solving Creation Operator Equation: Find Error in Calculation
- Luke Tan
- · Replies 5 ·
Calculating the coefficient of friction Given 2 forces and and angle
- HTML
- · Replies 18 ·
Power equations, which equation to use and why?
- Sarah0001
- · Replies 6 ·
Calculating required horsepower
- samjverm
- · Replies 8 ·
Amount of water flowing out of a small opening
- Yuvanitin
- · Replies 2 ·
Helicoidal movement: acceleration vector, arc length, radius of curvature
- Michael_0039
- · Replies 1 ·
Induced Current In a Tilted Square Inside and Outside a Solenoid
- Cactus
- · Replies 9 ·
Finding the Acceleration of Gravity from these Dropped Ball Experiments
- Bobb
- · Replies 5 ·
Solving for weight and mass in kg in an elevator
- Sunwoo Bae
- · Replies 2 ·
Finding angular velocity and acceleration for a 7m rod with constrained velocities
- Kaushik
- · Replies 5 ·
A bullet ricochets off a steel plate problem
- Deckname
- · Replies 6 ·
Pendulum Clock -- Change in frequency with change in temperature
- Sarah0001
- · Replies 5 ·
Diving board deflection with different weights and positions
- tmhnx
- · Replies 1 ·
Measuring position, velocity and acceleration in relative motion
- Like Tony Stark
- · Replies 1 ·
How Does the Coriolis Effect Influence Acceleration on a Merry-Go-Round?
- Like Tony Stark
- · Replies 3 ·
Capacitors (charging after long time)
- jisbon
- · Replies 4 ·
What is the osmotic pressure? (intro life-science physics)
- duckological
- · Replies 2 ·
Pulley system with relative motion
- Like Tony Stark
- · Replies 2 ·
Finding the thickness of graphite in a circuit
- janegoldberg
- · Replies 2 ·
Linear charge density and E-field from charged rod using integration
- mhrob24
- · Replies 3 ·
Why is my answer of 2.3 cm wrong for the pressure ratio formula?
- iram
- · Replies 3 ·
Particle moving in a rotating disc
- Like Tony Stark
- · Replies 5 ·
How Are These Resistors in Parallel
- FAS1998
- · Replies 3 ·
How to calculate the centre of mass
- Sarah0001
- · Replies 2 ·
Is the Elastic Collision Equation Applicable in This Mechanics Scenario?
- sarthiyah
- · Replies 2 ·
Metal bar moving upward in magnetic field of current-carrying wire
- jisbon
- · Replies 3 ·
Speed, distance and time problem
- Matt97
- · Replies 13 ·
Vehicle moving along a path tangent to the Earth surface
- Like Tony Stark
- · Replies 1 ·
Small bead - Circular loop Problem
- Albinjijo
- · Replies 1 ·
How Do You Calculate the Length of a Wire in a 60W Incandescent Bulb?
- UnknownSoldier02
- · Replies 3 ·
Uncertainty of an oscilloscope frequency, read from the period
- zzzriprip
- · Replies 4 ·