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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How Does Switching Affect Bulb Brightness in an RC Circuit?
- TwinGemini14
- · Replies 3 ·
Voltage Needed for a Proton to Arrive at Sphere at A Certain Speed
- chunkytuna21
- · Replies 11 ·
Calculating Displacement and Distance Traveled in a Vector Problem
- xkarenx
- · Replies 3 ·
Calculating Q for a Driven Harmonic Oscillator at Resonance
- LBloom
- · Replies 9 ·
What is the equilibrium force on a weight down a slope?
- bettysuarez
- · Replies 5 ·
How Can Bernoulli's Equation Be Applied to Flight?
- adamlep14
- · Replies 6 ·
Apparent depth of a 10m pond with refractive index 4/3
- sphyics
- · Replies 3 ·
Simple equation involving natural log
- jsphgllwy
- · Replies 1 ·
Maximum producible energy (electromagnetism; cyclotron)
- ephedyn
- · Replies 3 ·
What is the magnitude of the resultant of these two forces?
- hammerbox
- · Replies 1 ·
Rock launched horizontally from cliff: speed and displacement at 2s
- kevin948
- · Replies 1 ·
Force on car and trailer accelerating together
- laurenflakes
- · Replies 9 ·
Electric Field direction question
- Suy
- · Replies 7 ·
Period of spring -> magnetic field
- Jackyo
- · Replies 2 ·
Finding the greatest distance from the origin given a velocity vs. time graph.
- 1irishman
- · Replies 4 ·
Finding the current in resistors
- Oijl
- · Replies 2 ·
Graphs that result after the tickertape timer - cart - inclined plane experiment
- xoposo
- · Replies 3 ·
Finding rope tensions for a climber suspended between two cliffs
- ilovecarter
- · Replies 6 ·
What is the force between two masses connected by an external force?
- jason bourne
- · Replies 3 ·
Find the Range of Forces for Which Block Does Not Slide
- diablo_slayer
- · Replies 3 ·
Right Triangle Question for physics problem
- 1irishman
- · Replies 12 ·
Calculating Net Work on a Sliding Piano
- tjohn101
- · Replies 2 ·
Magnitude and direction of displacement
- mcmichie
- · Replies 2 ·
Motion Eqaution and Newtons Law Problem?
- r_swayze
- · Replies 3 ·
Work done by 2 objects move together
- MechaMZ
- · Replies 3 ·
A British Concorde and a French Concorde leave, going in the same direction
- TNewC
- · Replies 2 ·
Banking angle for highway curve at 93 km/h with 210 m radius
- Gattz
- · Replies 2 ·
Projectile Motion (2) Homework - Labeling Points, Drawing Vectors
- kevin948
- · Replies 1 ·
IB Extended Essay: Physics Topic w/ Home Materials
- quantumdoodle
- · Replies 4 ·
Non-Equilibrium Applications of Newtons Laws
- IAmSparticus
- · Replies 1 ·
Ring of Charge-how to maximize the Electric Field
- lu6cifer
- · Replies 1 ·
How can we compute dx in terms of R and θ in this given right triangle?
- quantum13
- · Replies 1 ·
Calculate Speed for Parabolic Basketball Throw from 2.1m at 18°
- snake918
- · Replies 1 ·
Acceleration problem and distance
- 1irishman
- · Replies 7 ·
Acceleration and distance problem?
- 1irishman
- · Replies 19 ·
How Do You Calculate the Mass of m2 on an Inclined Plane with Friction?
- Bryon
- · Replies 2 ·
What effect would a 500lb-horizontal force have on a strut at a 90 degree angle?
- spotty
- · Replies 1 ·
Can You Identify Which Iron Bar is Magnetic Without Any Tools?
- greener1993
- · Replies 7 ·
Spring with 2 forces at both end
- MechaMZ
- · Replies 1 ·
Increase in speed, increase in energy
- MechaMZ
- · Replies 1 ·
Maximum deflection in a timber beam
- nick.w
- · Replies 2 ·
Theory Question (Kirchhoff's Law)
- Bob_Builder
- · Replies 1 ·
How Much Work is Needed to Pull a Sled on an Icy Road?
- LJ Fiddle
- · Replies 7 ·
Only given displacement vector and initial speed, solve for theta
- i_heart_you
- · Replies 1 ·
Thermal energy problem. How was this answer reached?
- tjohn101
- · Replies 19 ·
Beam resting on wide supports with a distributed load
- jet1985
- · Replies 1 ·
Energy stored in a cable? (A Level CW)
- pipjordan
- · Replies 5 ·
Bungee Jump-Springs and Energy
- Furby
- · Replies 2 ·
Newton's Laws - friction, tension, acceleration
- buckybadger
- · Replies 5 ·
Determine Altitude from Constant Speed and Acceleration of Satellite S
- KillerZ
- · Replies 9 ·
Calculating Forces on Charged Particles Using Vector Components
- inconceivable
- · Replies 7 ·
Calculating Average Speed and Distance Traveled with Constant Acceleration
- Sephfire
- · Replies 4 ·
Calculate the wavelength for red light
- max2040uk
- · Replies 2 ·
How Long and Fast Did Apollo 11 Orbit the Moon?
- kashiark
- · Replies 1 ·
Does a test charge accelerate uniformly when repelled by a fixed charge?
- PhyDude
- · Replies 1 ·
Calculating Acceleration of a 2.60 kg Object with Given Tensions and Angle
- crazy_nuttie
- · Replies 1 ·
Coefficient of kinetic friction between table and floor
- farleyknight
- · Replies 10 ·
What Are the Fundamental Queries About Classical Physics Concepts?
- rohith291991
- · Replies 5 ·
Force needed to pull a block up an incline.
- garfiegrl
- · Replies 7 ·
How many strange quarks are in a ∑+ particle?
- Tomo-
- · Replies 1 ·
Test Magnetic Properties of Iron Bars
- greener1993
- · Replies 1 ·
Minimum speed for skateboarding ramp, optimal angle, and displacement vector
- kevin948
- · Replies 1 ·
Free Body Diagrams for hockey puck
- Chandasouk
- · Replies 1 ·
Interactions of Light and Matter
- EskShift
- · Replies 1 ·
How Long Until Two Drag Racing Cars Meet?
- i_heart_you
- · Replies 2 ·
Elementary Quantum Mechanics Resource
- lastlanding
- · Replies 1 ·
How Do Forces Influence Boat Acceleration and Velocity?
- marzbars121
- · Replies 1 ·
Five force and motion problems from homework set of 57
- slingersjilly
- · Replies 3 ·
Calculating Normal Force on a Student Riding a Ferris Wheel
- Bryon
- · Replies 14 ·
Distance between two protons hurled at each other with 0.19 MeV kinetic energy each
- HellaciousD
- · Replies 1 ·
Momentum Principle and Energy Principle to find speed and energy
- HellaciousD
- · Replies 1 ·
Train collision problem, speed at impact
- kazo0
- · Replies 1 ·
Solving Circuit: Current in Each Resistor
- fball558
- · Replies 1 ·
Determine when the velocity of the particle is zero
- you_of_eh
- · Replies 1 ·
Magnitude of force (elevator question)
- studybug
- · Replies 3 ·
Frequency of G 3 Octaves Up on Middle Ages Harp - 200 Hz
- smillphysics
- · Replies 1 ·
Effective Area Ratio for Sky Diver's Terminal Speeds?
- mattmannmf
- · Replies 8 ·
Understanding Polarisation in Electromagnetic Waves
- ananthu
- · Replies 2 ·
Find Final Voltage of Parallel Capacitors
- pelzerni
- · Replies 1 ·
Acceleration of 2 Rubber Bands on an Object
- gbedenba
- · Replies 1 ·
Solve for Position: Physics Question with Initial Position and Velocity
- you_of_eh
- · Replies 1 ·
Magnitude and direction problem
- darklich21
- · Replies 1 ·
Maximum Speed of a Whirling Rock on a String - Solving a Physics Problem
- mattmannmf
- · Replies 3 ·
How Does the Leftmost Block Affect the Middle Block in a Force Chain?
- darklich21
- · Replies 1 ·
Maximum force before 4 kg block slips on 12 kg block
- axlr0se
- · Replies 6 ·
Minimum acceleration for a jumbo jet to take off on a 1.8 km runway
- emyt
- · Replies 4 ·
Solve Kinematics Problem: Baseball Thrown at 44.1 m/s
- Power of One
- · Replies 3 ·
Solving Hooke's Law Problem: 2kg + 3kg Masses, k=136N/m, F=18N
- darklich21
- · Replies 1 ·
How Many People Can an Elevator Safely Accommodate?
- darklich21
- · Replies 2 ·
Calculating Relative Velocity of Child to Earth
- caljuice
- · Replies 2 ·
Finding the radius of a satellite
- Solitary Nut
- · Replies 2 ·
What would affect gravity during this experiment?
- exparrot
- · Replies 2 ·
How can the ranch hand successfully jump onto the galloping horse?
- waldvocm
- · Replies 12 ·
Frictionless incline, 2 masses.
- amb1989
- · Replies 2 ·
Rearranging equations final velocity
- Monocerotis
- · Replies 4 ·
Electric potential difference between two points in a constant field at an angle
- tag16
- · Replies 5 ·
Maximum acceleration with simple car
- enerj
- · Replies 3 ·
Acceleration given kinetic friction
- IAmSparticus
- · Replies 1 ·
Torsion pendulum period ratio for sphere vs cube
- reb659
- · Replies 2 ·
Electrostatics: spherical shell
- Bapelsin
- · Replies 2 ·