Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Rate of change of the magnetic field
- talaroue
- · Replies 6 ·
Centripetal Force: Calculating Radius of Curve for 1.00 x 10^3 kg Car
- dance_sg
- · Replies 4 ·
Energy stored in inductor and minimum time to change current
- talaroue
- · Replies 3 ·
How Long Does a Point on a String Take to Move Between +2.0mm and -2.0mm?
- Sdawg1969
- · Replies 5 ·
Which Experiment Best Demonstrates the Particle Nature of Light?
- jinksys
- · Replies 1 ·
Physics topics for a Formula One research assignment
- red1992
- · Replies 2 ·
What are some household items capable of gaining an electric charge?
- ctamasi
- · Replies 2 ·
Two very long straight conducting wires problem
- cate25
- · Replies 2 ·
Measuring energy of photon to within some accuracy
- quasar_4
- · Replies 2 ·
Newton's Laws, Force and Kinematics
- skydiver
- · Replies 2 ·
Problem on the transfer of heat into different materials
- lemonbrook
- · Replies 2 ·
Projectile to hit x,y from x,y given max height
- Ehdrian
- · Replies 2 ·
Gauge Pressure problem (algebra based)
- guynameddanny
- · Replies 1 ·
The Electric Field Produced by a Finite Charged Wire XD
- vorcil
- · Replies 7 ·
Where Electric Potential is Zero
- exitwound
- · Replies 11 ·
How Do You Calculate Tension and Normal Force in an Atwood Machine?
- toshiba_girl
- · Replies 3 ·
Solving a Rectangular Loop Wire Problem: A Tutorial
- donuts
- · Replies 5 ·
Relative density of ice in cylinder
- leena19
- · Replies 4 ·
Can Ampere's Law Still Apply When Whole Solenoid Is Enclosed?
- n77ler
- · Replies 4 ·
Semantics making Bernoulli's Eq KILLER see if you can make sense
- missnola2a
- · Replies 1 ·
Magnetic field and force from two parallel current-carrying wires
- mar7pau
- · Replies 1 ·
Tennis ball thrown upward to meet golf ball at its peak
- Stroodle
- · Replies 1 ·
Force necessary to create enough friction.
- Elmnt
- · Replies 3 ·
Kinetic energy of relativistic electrons
- neptunone
- · Replies 3 ·
Calculating the Fall Time of a High Diver from 36 m
- Stroodle
- · Replies 2 ·
Resultant of three coplanar concurrent forces in north and east directions
- jdhen
- · Replies 3 ·
An ice cube floating in water, what is the volume of the part under water?
- exutable
- · Replies 8 ·
System of pulleys - find acceleration
- blackboy
- · Replies 8 ·
Water main flow rate and pressure drop in a transition coupling
- missnola2a
- · Replies 6 ·
Object Weight given only difference in weights in and out of water
- missnola2a
- · Replies 7 ·
Voltage divider with variable resistor and bulb load
- leena19
- · Replies 16 ·
What Is the Doppler Effect of an Ambulance Siren at Different Wind Conditions?
- songoku
- · Replies 18 ·
How to Calculate Buoyant Force and Volume of a Submerged Object?
- missnola2a
- · Replies 2 ·
Find magnitude of the magnetic field
- define_normal
- · Replies 5 ·
Pendulum gravity on X planet ratio
- missnola2a
- · Replies 6 ·
Ball thrown vertically upward with initial speed 20 m/s
- skydiver
- · Replies 4 ·
Finding the force on a 0.20 kg object accelerating to 25 m/s over 0.75 m
- dance_sg
- · Replies 14 ·
Finding angular velocity using conservation of angular momentum
- cosurfr
- · Replies 2 ·
Speed of Sound in water given frequency
- jdg
- · Replies 15 ·
Finding the acceleration ratio of a 50 kg to 75 kg object
- dance_sg
- · Replies 7 ·
Help with Kinematics: Moving Towards Origin
- harini_5
- · Replies 3 ·
Why Does Water Balloon Drop Not Match Expected 9.81m/s² Acceleration?
- psychosushi
- · Replies 6 ·
Horizontal/verticle distance, velocity
- dance_sg
- · Replies 2 ·
Finding student mass from weight in an accelerating elevator
- dance_sg
- · Replies 3 ·
Calculating Min Incident Angle for Ray Emerging from Prism
- NikkiNik
- · Replies 2 ·
Shifting Centre of Mass Puzzle?
- PeterPumpkin
- · Replies 3 ·
Basic calculation problem with commutators
- Unkraut
- · Replies 2 ·
Not really a question, basic physics instructions (book error?)
- Raizy
- · Replies 4 ·
Electric force between 2 parallel plates
- Oblivion77
- · Replies 18 ·
Wavelength Ratios for a Pitching Boat in a Deep Lake
- songoku
- · Replies 4 ·
How far does a car travel before reaching a speed of 100 km/h?
- Stroodle
- · Replies 5 ·
Finding Tensions of Fixed Point Charges
- adkinje
- · Replies 1 ·
Calculate Car's Speed in Collision: Brakes and Skid Marks Analysis
- Stroodle
- · Replies 4 ·
Equilibrium of Forces in a Hemisphere: Solving for Angles and Ratios
- harimakenji
- · Replies 8 ·
How Does Simple Harmonic Motion Relate to Sinusoidal Functions?
- Starwatcher16
- · Replies 14 ·
Conservation of energy and momentum?
- leena19
- · Replies 5 ·
Possible Variables in a Planck's Constant Practical?
- Procrastinate
- · Replies 1 ·
Calculating Energy Required for Space Shuttle Orbit Boost
- bcjochim07
- · Replies 3 ·
Can you show me if i did these calculations right?
- graphicer89
- · Replies 3 ·
How to Calculate 3D Projectile Movement with Initial Vectors?
- wraithseeker
- · Replies 1 ·
Solve Bernoulli's Problem: Water Flow in Garden Hose
- jdg
- · Replies 3 ·
To find the density of a material of the body using moments
- leena19
- · Replies 2 ·
Emf induced in the windings of coil
- dmckeog
- · Replies 3 ·
Is Acceleration Different During a Baseball's Flight?
- pttest
- · Replies 2 ·
What Is the Tension Force in a Clothesline Holding Big Bird?
- tofuwrice
- · Replies 2 ·
Solving a Buoyancy Problem with Carbon Steel
- jdg
- · Replies 22 ·
Explaining causes and effects in projectile motion and rotational inertia
- up2dsky89
- · Replies 1 ·
Optics - distance between object and image
- Smile101
- · Replies 9 ·
Why is the net force on the spring 1.2 − 9x after removing the upper block?
- hachi_roku
- · Replies 2 ·
Linear and rotational acceleration from a single applied force
- tom_backton
- · Replies 5 ·
Can you convert radians to meters?
- orange03
- · Replies 2 ·
How Fast Will the Climber Accelerate and How Long Until the Rock Falls?
- orange03
- · Replies 1 ·
Problem involving Coulombs Law; suspended masses
- adkinje
- · Replies 2 ·
Problem about uniformed charged ring and a charge in the center
- edgerandy
- · Replies 6 ·
Work done on the block by force
- Zmuffinz
- · Replies 5 ·
Two masses attached by a spring
- Starproj
- · Replies 3 ·
If a person breathes thirty time in a minute what is ?
- graphicer89
- · Replies 4 ·
Calculating Pisa Point of Failure
- Guvna
- · Replies 5 ·
Car travels 18 m in the fifth second, find acceleration
- Lucy_x
- · Replies 2 ·
Work and Kinetic Energy of weight
- rock_star
- · Replies 2 ·
How much work is done by gravity on an object sliding down an inclined plane?
- rock_star
- · Replies 2 ·
How fast should a space station rotate to simulate Earth's gravity?
- orange03
- · Replies 11 ·
Why the negative sign in the current continuity equation
- jeff1evesque
- · Replies 3 ·
Circuit/Current/Resistance Problem
- blackout77
- · Replies 2 ·
What is the Induced Current in the Second Coil?
- cashcabwatche
- · Replies 6 ·
Frequency of a Car's Vibrations?
- jumpingjack90
- · Replies 3 ·
Kinetic Energy and Total Mechanical Energy
- MarineBio
- · Replies 2 ·
A little history of physics .How is physics involved in this?
- graphicer89
- · Replies 3 ·
Dot and Cross Products (of Gradients)
- jeff1evesque
- · Replies 9 ·
Problem in Perfectly Elastic Collision w/o given mass
- naiian02
- · Replies 5 ·
How do switches and resistors affect a RC circuit's charge and energy output?
- songoku
- · Replies 7 ·
Climber dangling from rope attached to rock on ice cliff
- orange03
- · Replies 1 ·
Why Might Experimental Gravity Measurements Differ from the Standard 9.8 m/s²?
- Petrucciowns
- · Replies 7 ·
Kinetic Friction of moving car hitting a stationary car
- orange03
- · Replies 1 ·
Sliding down a Track, loop, Conservation problem
- iamtrojan3
- · Replies 5 ·
Why Does Divergence of Electric Flux Equal Volume Charge Density?
- jeff1evesque
- · Replies 11 ·
Perfectly inelastic collision - conceptual - where does the lost KE go?
- geejodi
- · Replies 5 ·
What are the masses of two objects given their velocities and total momentum?
- MarineBio
- · Replies 5 ·
The Work Done in Pulling a Supertanker
- rock_star
- · Replies 4 ·
Sphere rolling down a ramp problem
- iamtrojan3
- · Replies 5 ·