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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Pendulum with fixed blocking point and period measurement
- tomkoolen
- · Replies 3 ·
Forces Concerning a Rectangular Prism
- hyperddude
- · Replies 15 ·
What Problems Can Occur When Automobile Engines Get Too Hot?
- spaghetti3451
- · Replies 2 ·
Very simple conversion problem
- coffeebird
- · Replies 9 ·
Pilot turning 150m in two circular arcs to align with runway
- Loading
- · Replies 19 ·
Can not understand how to divide the components of the vector.
- arierreF
- · Replies 8 ·
What is the force on a test charge at the center?
- spaghetti3451
- · Replies 8 ·
Why Can't a Full-Size Thermometer Measure Thimbleful Hot Water Accurately?
- spaghetti3451
- · Replies 3 ·
How Is a Star's Lifetime Calculated Using Mass-Luminosity Relationship?
- ZedCar
- · Replies 3 ·
How to calculate instantaneous speed from a speed - time graph?
- Seniour Baloc
- · Replies 7 ·
Why does a voltmeter read 6V when the light receives less?
- rebecca12345
- · Replies 4 ·
How Close Can a Helium Nucleus Get to a Gold Nucleus?
- jinhuit95
- · Replies 7 ·
Work and internal energy for monatomic ideal gas on PV diagram
- prj
- · Replies 3 ·
How can I show the sun rotates?
- SecretSnow
- · Replies 3 ·
How does a falling ball's apparent radius change with time?
- Numeriprimi
- · Replies 5 ·
Magnetic force Particle trajectory
- arierreF
- · Replies 8 ·
What is the velocity and time needed to solve this kinematics problem?
- lidakeo
- · Replies 4 ·
Determining resistance of a series resistor in a simple series circuit
- gbru316
- · Replies 6 ·
Finding Tension Between Garfield and John at the Olympics Parking Lot
- Lolagoeslala
- · Replies 19 ·
Calculating distance using the speed of sound through two different mediums
- Joe Schmoe
- · Replies 15 ·
Braking distance and time for car at twice the speed
- bonbloc
- · Replies 2 ·
Current needed to keep conducting bar stationary on inclined plane
- arierreF
- · Replies 18 ·
Neutron, proton collision problem
- ofeyrpf
- · Replies 5 ·
Time Dilation in Relativity: Solving a Simple Observer Problem
- unscientific
- · Replies 2 ·
Why Is Kinetic Energy Zero at Escape Speed?
- SecretSnow
- · Replies 15 ·
Why does a satellite orbit when the Earth curves away from it?
- SecretSnow
- · Replies 6 ·
How Does Symmetry Solve a Cubic Resistor Network?
- vink
- · Replies 3 ·
How Does Rsinθ Relate to Extra String Length in Physics?
- Dragster
- · Replies 6 ·
Optics, calculating image distance,.given magnification and focal length
- faria123
- · Replies 1 ·
North Pole Entering a coil wound counterclockwise
- COOLMAN09
- · Replies 1 ·
How Do Measurement Uncertainties Impact the Calculation of Gravity?
- trollcast
- · Replies 3 ·
Scaling factor of a simple pendulum between length and time period.
- mrcotton
- · Replies 7 ·
Moment of Inertia for 2D Rectangle: Does it Depend on Both Sides?
- peripatein
- · Replies 5 ·
Finding potential differences across capacitors with switches
- unscientific
- · Replies 5 ·
Force needed to lift 60N box with three pulleys and two ropes
- Loading
- · Replies 26 ·
[Relativity] Energy and momentum question
- radiator0505
- · Replies 5 ·
Question how to find acceleration with kinetic friction involved.
- baird.lindsay
- · Replies 3 ·
Equilibrium - The physics of a clothesline.
- L_0611
- · Replies 8 ·
Minimum momentum of a quark confined in a proton
- DunWorry
- · Replies 6 ·
Problem deriving failure of simultaneity at a distance
- Roo2
- · Replies 1 ·
Statistical mechanics - Partition function of a system of N particles
- Jalo
- · Replies 5 ·
Finding where gravitational forces balance between Earth and Moon
- slybuster
- · Replies 7 ·
Work done by a force with a given equation
- trogdor5
- · Replies 5 ·
Conservation of momentum - falling from hovering helicopter
- Hilarry
- · Replies 6 ·
How many nodal and antinodal lines are there?
- Ilan
- · Replies 1 ·
Statistical Physics - average energy of a system.
- Jalo
- · Replies 1 ·
Finding the speed of a proton in a mass spectrometer
- Mack199
- · Replies 2 ·
Why Is Tension 3mg at the Lowest Point?
- duplaimp
- · Replies 1 ·
Young's Experiment and the Wave-Particle Model
- Kennedy111
- · Replies 1 ·
Final Swing Angle and Direction After Two Pendulums Collide and Stick Together
- Gill987
- · Replies 19 ·
Calculating Rollercoaster Energy and Designing for Conservation
- BlueCardBird
- · Replies 5 ·
Magnitude and Direction, Canoe on River
- ap_physics
- · Replies 3 ·
Turntable Problem: Homework Solution
- teeheehee
- · Replies 5 ·
How Does a Vacuum Cleaner Belt Influence Rotational Motion Dynamics?
- ehabmozart
- · Replies 3 ·
Angular momentum of two balls hitting opposite ends of a stick
- DunWorry
- · Replies 5 ·
How Do You Linearize the Euler Equations for Fluid Motion?
- ginhung
- · Replies 3 ·
Heat Loss of Liquid, Solve for Time
- jsh562
- · Replies 21 ·
Why does the spring contraction equation give two different solutions?
- assaftolko
- · Replies 19 ·
Magnitude and direction of Vectors using head to tail rule
- bllnsr
- · Replies 9 ·
Optics (double slit experiment)
- roam
- · Replies 4 ·
2kg mass dropped on spring: why doesn't it reach initial height?
- assaftolko
- · Replies 8 ·
What Is the Acceleration of a Car Coasting Up a 10 Degree Incline?
- romanphysics
- · Replies 6 ·
How Many Beats per Second Will the Runner Hear Due to Sound Interference?
- Loading
- · Replies 5 ·
Bar of uniform mass hinged to the ceiling.
- peripatein
- · Replies 25 ·
What Is the Minimum Distance Between a Slow-Launched Satellite and Its Planet?
- slai13
- · Replies 3 ·
Helicopter blade tip speed and velocity over one revolution
- dguilfoyle
- · Replies 1 ·
Electric field of a line of charge and direction
- Ahmed A
- · Replies 1 ·
Finding gravitational potential inside solid sphere
- demonelite123
- · Replies 1 ·
Tangential velocity of the earth
- RTW69
- · Replies 3 ·
Planets, Meteors, and booster rockets space
- Loading
- · Replies 4 ·
Compton Effect, frequency question
- Kennedy111
- · Replies 5 ·
Maximum Extension of a Hanging Spring
- heartyface
- · Replies 6 ·
Bungee jumping with elastic cord and rigid rope
- Giff
- · Replies 1 ·
Understanding Tangential Acceleration in Circular Motion
- heartyface
- · Replies 9 ·
What is the proper time interval in relativity and how is it determined?
- SecretSnow
- · Replies 2 ·
How Is Maximum Kinetic Energy Calculated for an Object on a Circular Path?
- duplaimp
- · Replies 11 ·
What Determines the Frequency of a de Broglie Wave?
- yogifromindia
- · Replies 8 ·
Finding f and d in Lab Experiment
- lionely
- · Replies 6 ·
Experiement of determining specifc latent heat of vapourisation
- lionely
- · Replies 10 ·
Classic Hemispherical Analyzer
- rbrayana123
- · Replies 1 ·
The work done by an electric field in accelerating a charged particle?
- Dongorgon
- · Replies 3 ·
Can't understand why work done on a spring is given by .5fx^2
- deliciousiron
- · Replies 6 ·
Finding acceleration on an incline plane with static friction
- Arclite Cham
- · Replies 1 ·
How is my text book getting the components of a vector?
- student34
- · Replies 2 ·
Acceleration in two dimensions. Hockey puck question
- TimelessTime
- · Replies 10 ·
Two Masses Connected by Spring Against Wall
- Gill987
- · Replies 9 ·
Collision with orientation, finding velocity
- SuperHero
- · Replies 3 ·
Electricity and magnetism confusion
- Dongorgon
- · Replies 7 ·
Uniqueness/Gauss Theorem - General Difficulty/Misconceptions?
- rbrayana123
- · Replies 2 ·
Why is Method 2 More Precise than Method 1 in Statistical Analysis?
- arierreF
- · Replies 2 ·
How Far Does the Goalie Slide on Ice After Catching a Hockey Puck?
- Loading
- · Replies 6 ·
How Far Does a Goalie Slide After Catching a Puck?
- Loading
- · Replies 11 ·
How Does the Law of Conservation of Energy Apply to a Particle's Motion?
- dot123
- · Replies 3 ·
Dynamical friction due to gravity
- sapz
- · Replies 1 ·
How Fast Does the Train Accelerate to Outpace the Car?
- theultimate6
- · Replies 1 ·
Diffraction With A Single Slit And A Lens.
- chris_avfc
- · Replies 2 ·
Mass of an accelerated electron?
- Tryhard2
- · Replies 3 ·
Calculate Perihelion Distance of Mars Using Solar System Parameters
- ZedCar
- · Replies 2 ·
Linear and angular momentum problem
- barryj
- · Replies 3 ·