Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
Threads
Why does the heavier car stop sooner?
- scooby07
- · Replies 4 ·
Work done by potential difference and electron acceleration
- smd1991
- · Replies 1 ·
Difficult problems, im frustrated
- chimez14
- · Replies 1 ·
How Long Until the Train Stops Moving Up the Inclined Track?
- chimez14
- · Replies 1 ·
Skier sliding down 4.7° slope with friction
- Mocambo
- · Replies 6 ·
Find the total work done on 20.0N block
- bharp24
- · Replies 4 ·
How Do You Determine Capacitance and Resistance in a Series RC Circuit?
- Clipse
- · Replies 3 ·
Calculating displacement on a v-t graph?
- aaquib
- · Replies 6 ·
Work to move a charge to point P in an electrostatic triangle
- physicsbhelp
- · Replies 22 ·
Determine acceleration when velocity is v=x^3-4x^2+7x
- kring_c14
- · Replies 4 ·
Velocity as a function of force/impulse/time.
- the7joker7
- · Replies 2 ·
Dielectric Capacitance of Parallel Plate Cap
- jesuslovesu
- · Replies 3 ·
Melting Ice Cube: Time Needed for 3-Ton Ice Cube with Golden Bars
- baky0905
- · Replies 2 ·
Solving for Initial Velocity: When Angles, Distances are Given
- princesspriya
- · Replies 2 ·
How Does Wind Affect the Flight Time of a Plane on a Square Route?
- checkmarks
- · Replies 1 ·
Total displacement for a train journey with two parts and a stop
- aaquib
- · Replies 4 ·
How to Determine Angular Speed with Only Rotational Inertia?
- dalterego
- · Replies 18 ·
A fixed string in the third harmonic
- TFM
- · Replies 33 ·
How do I calculate percentage error in gradient from RMS error of y-values?
- garyman
- · Replies 5 ·
Relative velocity of two speeding cars
- checkmarks
- · Replies 1 ·
What is the thickness of the copper layer on a constantan wire?
- mysqlpress
- · Replies 4 ·
Finding the drag constant C from terminal velocity data
- dranseth
- · Replies 10 ·
Loudspeaker Design: Calculating Angle of First Minimum
- _Mayday_
- · Replies 4 ·
How Do Rack and Pinion Gears Translate Motion in Physics?
- bhnh
- · Replies 4 ·
An experiment to determine the speed of sound using a closed pipe.
- _Mayday_
- · Replies 6 ·
Why are my two-slit diffraction minima shifted toward the origin?
- poonintoon
- · Replies 1 ·
What determines the net work on a hockey puck in circular motion?
- shenwei1988
- · Replies 3 ·
Finding perpendicular distance from object heading to target GPS
- Alienufo736
- · Replies 1 ·
Calculate Theta for 0 Vertical Component of P
- Ry122
- · Replies 7 ·
(101)Conservation of linear momentum
- WPCareyDevil
- · Replies 2 ·
How Does Adding a Capacitor Affect Current in an AC Circuit?
- arod2812
- · Replies 1 ·
Parabolic Motion, *throw a ball with velocity at angle 45 6.2m above ground
- Tommy22
- · Replies 3 ·
How Do You Calculate the Equivalent Resistance in This Circuit?
- rootX
- · Replies 1 ·
Water Surface: Is it Flat or Rounded?
- tommyn79
- · Replies 1 ·
Average Speed? How do I calculate?
- aaquib
- · Replies 3 ·
Finding Max Height and Velocity of Thrown Kong
- Charlie_russo
- · Replies 1 ·
What Happens to Puck Speeds After an Inelastic Collision with Energy Loss?
- klopez
- · Replies 1 ·
Calculating Earth's Orbital Speed Using Star Spectra
- bse
- · Replies 2 ·
Does the Lorentz Force Law Affect Charged Particles' Speed and Direction?
- kungshoey
- · Replies 3 ·
How Does Snell's Law Explain Light's Unchanged Direction Through a Glass Plate?
- clipperdude21
- · Replies 1 ·
How Is Energy Conservation Used to Calculate Sliding Distance on an Incline?
- minimax
- · Replies 4 ·
Work and Kinetic Energy: Calculating Work and Speed with Varying Force
- shenwei1988
- · Replies 3 ·
How High Must a Satellite Orbit to Remain Geostationary Over Jupiter?
- ookt2c
- · Replies 2 ·
Electric Forcs and Work (Algebra based physics)
- Seikon85
- · Replies 1 ·
Coal energy and heating a home. .
- Speedy
- · Replies 1 ·
Block hitting a spring down an incline
- AnkhUNC
- · Replies 1 ·
Center of mass of concrete wall
- nightshade123
- · Replies 7 ·
How Does Angular Velocity Affect Circular Motion?
- TheNormalForc
- · Replies 2 ·
Deriving Electric Field from Voltage
- Gear300
- · Replies 1 ·
Surface Charge Distrib on Plane
- jesuslovesu
- · Replies 1 ·
Finding the potential difference?
- tyhwang1987
- · Replies 1 ·
What Is the Speed of Water Leaving the Nozzle?
- _Pistolkisses
- · Replies 1 ·
How Do NPN Transistors Function in a Circuit?
- sanado
- · Replies 1 ·
Gun and Shell: Calculate Velocity and Force
- milan.007
- · Replies 1 ·
How far up the incline will the block move before coming to rest?
- ohhi
- · Replies 2 ·
Body with constant velocity and accelerating body catching up
- milan.007
- · Replies 3 ·
Circular Motion Problem: Finding Angular Velocity with Maximum Tension of 50 N
- anonymous820
- · Replies 3 ·
How Is Kinetic Energy Calculated at Point A in a Loop-the-Loop?
- am08
- · Replies 12 ·
What is the Speed of a 420 g Particle at t=2 Seconds Under a Sine Wave Force?
- Nightrider55
- · Replies 7 ·
How do you calculate work in a vertical rope and mass problem?
- greyradio
- · Replies 3 ·
How Do You Calculate the Radial Component of Acceleration in a Turning Car?
- jonnejon
- · Replies 4 ·
Finding thumb and finger forces on a tilted lunch tray
- tem_osu
- · Replies 6 ·
How Does Braking Affect the Temperature of Car Brakes?
- Cortar
- · Replies 1 ·
Rotational Kinematics of bicycle breaks
- tem_osu
- · Replies 7 ·
Are drag coefficients negative?
- amolv06
- · Replies 4 ·
Potential difference at midpoint of equilateral triangle with charges at vertices
- Tan_Can
- · Replies 1 ·
Instaneous Power in a standing Wave
- TFM
- · Replies 17 ·
Potential difference problem (important)
- Tan_Can
- · Replies 1 ·
Why is wave mechanics needed if Bohr theory gives the same energies?
- Lillyotv
- · Replies 2 ·
Solving Neuton's Second Law: Mass and Tension Calculations for Hanging Objects
- chocolatelover
- · Replies 4 ·
Do Photons from White Light Emit Randomly with Specific Lifespans?
- coke
- · Replies 1 ·
Plane landing time and distance with maximum deceleration
- chocolatelover
- · Replies 4 ·
Helicopter Physics: Finding Time to Reach Ground from Release Point
- chocolatelover
- · Replies 3 ·
With what speed does the car then strike the tree?
- chocolatelover
- · Replies 11 ·
Atwood Machine and block acceleration
- ~christina~
- · Replies 15 ·
Why does a blackened spoon appear glossy when immersed in water?
- nariman
- · Replies 2 ·
Circular Motion: Change in Height, Box Struck by Arrow
- MaZnFLiP
- · Replies 2 ·
How Many Turns of Wire Does the Coil Have?
- feedmeister
- · Replies 1 ·
Starting from rest several toy cars roll down ramps at different
- grasjm36
- · Replies 5 ·
Uniform circular motion radius
- ys2050
- · Replies 2 ·
I have to make sample questions for class
- PhysWiz3.14
- · Replies 1 ·
Is there any online sites that simulates circuits
- henry2221
- · Replies 1 ·
Quiz: Calculating Gravitational Forces and Orbital Speeds
- PhysWiz3.14
- · Replies 1 ·
What Causes Kinetic Energy To Not Be Conserved
- MaZnFLiP
- · Replies 2 ·
Particle Motion Problem: Finding Position and Velocity with Derivatives
- chocolatelover
- · Replies 1 ·
Electrostatics: Conducting Sphere in Uniform Electric Field
- MetsFan09
- · Replies 3 ·
How Is the Spring Constant Calculated from Block Compression and Friction?
- soul5
- · Replies 1 ·
Angular Acceleration of at woods machine
- meganw
- · Replies 2 ·
Calculate orbital speed of Earth from distance and period
- rsyodoom2005
- · Replies 8 ·
Determining Satellite's Altitude and Period Using Kepler's Laws
- featherua08
- · Replies 2 ·
Measuring distance to an outside object using vectors and angles
- frogger20027
- · Replies 1 ·
Find currents and Vab when 10V battery polarity is reversed
- jelsliger7
- · Replies 3 ·
Vector by bivector geometric product
- krcmd1
- · Replies 2 ·
Finding the force to rotate a 44-ton door 90 degrees in 30 seconds
- JFlash
- · Replies 2 ·
Calculating Distance Traveled on a Rotating Wheel
- featherua08
- · Replies 2 ·
How Is Force Calculated to Keep a Block Stationary on an Inclined Plane?
- bjgawp
- · Replies 1 ·
Conservation of Energy Equations -
- jpond89
- · Replies 1 ·
When Should Gravity's Potential Energy Be Negative in Energy Calculations?
- rsala
- · Replies 11 ·
Solving Simple Power Problem: Grandfather Clock + 3.70kg Weight
- help234
- · Replies 1 ·