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 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 ·
Formula One: physics 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
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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 ·
Current-Can someone solve, please?
- mar7pau
- · Replies 1 ·
Calculating Vertical Ball Collision Speed at 100m Cliff | Physics Question
- 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 ·
NON coplanar forces, please i thanks
- 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 ·
Flow and Flow Rate: Determine Rate & Pressure Change
- missnola2a
- · Replies 6 ·
Object Weight given only difference in weights in and out of water
- missnola2a
- · Replies 7 ·
Current Electricity Homework: 3V Battery & 30 Ohm Resistor
- 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 ·
1d kinematics help - ball thrown vertically upwards
- skydiver
- · Replies 4 ·
Force 0.20 kg Object: Acceleration from Rest to 25 m/s
- 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 ·
Acceleration of 50kg vs 75kg Object: Find the Ratio
- 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 ·
Elevator and mass of a student help
- 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 ·
Helps on Projectile motion and moment of inertia
- up2dsky89
- · Replies 1 ·
Optics - distance between object and image
- Smile101
- · Replies 9 ·
Understanding the Force on a Spring: Why is it 1.2 - 9x?
- hachi_roku
- · Replies 2 ·
Force & Torque in Classic Mechanics: Calculating Accelerations
- tom_backton
- · Replies 5 ·
Radians to Meters: Conversion & Possibilities
- 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 ·
Find Acceleration of Uniformly Accelerating Car | Kinematics Homework Help
- 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 ·
Explaining Electric Current Density and Conservation Law - Jeffrey
- 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 ·
Solve Kinetic Friction Homework: Acceleration & Time Before Rock Goes Over Edge
- 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 ·
Moment of Inertia of slender rod
- Amar.alchemy
- · Replies 16 ·
Change in kinetic energy Velocity not given
- rock_star
- · Replies 3 ·
Kinetic Friction of ride down a ramp
- MarineBio
- · Replies 5 ·